HUBER ReportInternational

WASTE WATER Solutions

News for Customers and Friends of HUBER TECHNOLOGY May 2012

CONTENTSSludge Treatment 2 – 3

Mech. Wastewater Treatment 4 - 7

IFAT 8 - 9

Heating & Cooling with Wastewater 10 - 11

Filtration & ReUse 12 – 13

Green Building 14 - 15

Stainless Steel Equipment 16

Global Service 16

IN BRIEFSludge Treatment

Due to the great response we receivefrom the market to our RoS 3Q ScrewPress units we have developed a newRoS 3Q model with a higherthroughput capacity. The new RoS 3Qsize has a 620 mm dia. screen basketto allow for a sludge throughput up to15 m³/h. With our Ros 3Q 620 we aimat the target group of wastewatertreatment plants designed for up to50,000 PE.

Page: 2

Utilisation of wastewater asa thermal heat source

New modern buildings prevent theloss of heat to a great extent butenormous amounts of energy are stilllost through wastewater pipelines. Aspecial heat exchanger is required torecover this energy. We have therefo-re added the HUBER TubeWin HeatExchanger to our product portfolio.

Page: 10

Filtration & ReUse

The HUBER BioMem® filtration unit isan addition to our portfolio of MBRsolutions. This smaller counterpart ofthe HUBER VRM® Bioreactor has beendesigned for smaller throughputs andis therefore ideal for decentralisedapplications (housing developmentareas, hotels, small industrial compa-nies, etc.).

Page: 12

Industry

Exploding city populations aredemanding new ideas for waterrecycling solutions. HUBER have res-ponded to this growing demand withthe launch of the ‘smartMBR’ rangeof wastewater treatment & recyclingsystems.

Page: 14

Dear Reader,National and international expertsand thousands of visitors from allover the world will come to Munichagain in May to visit IFAT ENTSORGA,the most important international tra-de fair for water, wastewater, reuse,and recycling, where they can seeand discuss new products and soluti-ons to be applied and implemented inthe coming years. It will certainly beexciting again to see which new tech-nologies and trends show up or haveestablished themselves. Two sub-jects, which have also been the focusof our business in the past years, willdefinitely be the centre of attention:closed water loops, through utilisati-on of heat energy or decentralisedwastewater treatment for example,and improved integration of mecha-nical systems and communicationtechnology for maintenance and con-trol. Because practice is always bet-ter than theory alone we offer anexcursion to WWTP Straubing whereyou can experience live our innovati-ve ThermWin system which utiliseswastewater heat and oursludge2energy system for thermalsludge utilisation. On more than1,100 m2 stand area (hall A2, standno. 333) we will show you innovativeproducts and solutions of the highquality for which HUBER is known. Wefinally want to stay your reliable part-ner for a long time to come and provi-de future service and maintenancefor what we sell today. Comprehensi-ve information is available in advan-ce on our IFAT internet pageifat.huber.de. Additionally, we wouldlike to use this HUBER Report issue togive you a taste of what you canexpect from us at IFAT 2012 and inthe years to come. I look forward toseeing you at our IFAT stand in Mayand will be pleased to hear your com-ments and suggestions for improve-ment. We want to do our best to ensu-re you can rely on HUBER as yourpartner also in the future.Very sincerely yours,

ED I TOR IAL

Georg Huber

The guests of honour symbolically pushed the start button.

The sludge2energy plant for the reco-very of energy from sewage sludge,the first pilot project of its kind nati-on-wide, was officially inauguratedon 27.01.12. After mayor Markus Pan-nermayr and Dr.-Ing. E.h. Hans Huberhad held their welcome speeches,Bavarian State Minister for the envi-ronment and health Dr. Marcel Huberspoke to the invited guests. Dipl.-Ing.Cristina Pop, head of the city’s civilengineering office, expressed herappreciation to economy and sciencebefore dean Erhard Schmidt and dea-con Dieter Rein gave their blessing to

the new plant. The guests of honoursymbolically pushed the start buttonfor a project that is a role model forthe world.

“Sewage sludge is nothing thatshould be spread on land, this is alsothe position of the Bavarian Stategovernment”, said Dr. Marcel Huberand appreciated the HUBER showca-se project. Previously, almost all thesludge generated on WWTP Strau-bing had been disposed to agricultu-ral land as common in many placesbefore the groundbreaking ceremonyfor the sludge2energy project took

Bavarian State Minister Marcel Huber speaks at official opening

Official opening of sludge2energy project at Straubing

place in 2008. To cut a long storyshort, the modern HUBER plant pro-duces heat and energy from sewagesludge. The plant dries and incinera-tes all the sludge generated on theWWTP. The energy set free duringthis drying and incineration processis available to be used to operate thewastewater treatment plant.

HUBER is therefore right to promotethis decentralised solution for energyself-sufficient sewage sludge utilisati-on. Also mayor Markus Pannermayr isfully convinced of the benefits theplant offers; it produces about 1,400tons of phosphorus-containing ashper year from 10,000 tons of dewate-red sludge. The phosphorus contentof the ash is even high enough tothink about a phosphorus recoverysolution.

The plant consists of a HUBER beltdryer, a grate stoker furnace andmicro gas turbine. Presently, It is suc-cessfully operated by HUBER itself.Probably at the end of 2013, whenthe economic efficiency of the s2esolution has been proven, the munici-pality of Straubing will take over theplant. The municipality will thenbecome independent of the sludgedisposal market and profit from long-term cost certainty.

The HUBER stand at IFAT ENTSORGA 2010

IFAT ENTSORGA is the most importantinternational trade fair for innovati-ons and services for water, wastewa-ter, refuse, and recycling. More than2,700 exhibitors will show their pro-

ducts and innovations for sustainablewater management in industrial nati-ons and adapted technologies fordeveloping and emerging countries.Conferences, symposia, workshops

Major international trade fair for water, wastewater, refuse, recycling

HUBER exhibits at IFAT ENTSORGA 2012and forums will be organised to com-plete the program. Every two yearsMunich is the centre and pivotal pointof international environmental tech-nology.

From 7 to 11 May 2012 everything inthe city will be about environmentagain. HUBER has exhibited at IFATfor many years and always presentedone of the biggest stands. This year,HUBER will show its product portfolioon an area of more than 1,100 m2.With its worldwide reputation, thetrade fair is of great importance alsofor HUBER.

HUBER is opening new markets in thefields of “Green Building“ and “heatfrom wastewater”. IFAT is the optimalplatform to present further develop-ments and novelties. For easy orien-tation on our stand (no. 333, hall A2)without spending too much time onfinding exhibits or your contact part-ners, you will find a site plan on page8 and 9.

b

Balingen

Berching

Sludge Treatment Page 2

Continued from page 1: New RoS 3Q Screw Press size: successful continuous operation test

News Screw Press size for high throughputs

The new machine has been tested ona real wastewater treatment plant toprove its qualities under continuousoperation conditions:

➤ Problem-free continuousoperation even at the capacitylimits

➤ Competitive dewateringefficiency

➤ Minimium energy consumption

➤ Easy to operate

The mobile RoS 3Q unit is continuous-ly operated on a 70,000 PE wastewa-ter treatment plant where the unitdewaters digested sludge with anorganics content of approximately 65%. The mobile screw press is fully

RoS 3Q 620 Centrifuge

Rotary speed of compacting screws / drum [rpm] 0.2 – 1.0 2500 - 3000

Throughput capacity [m³/h] 5 - 14 8

Solids load [kgDR/h] 220 - 320 360

Dewatering result [% DR] 23 - 29 23 – 25

Specific polymer consumption [kg/tDR] 10 - 15 15

Installed capacity*) [kW] 2.2 approx. 20

Specific input power*) [kW/tDR] 4 approx. 40

Specific output related to solids load[kWh/kgDR] 0.007 - 0.01 0055

*) dewatering unit only

Continuously operated RoS 3Q 620 unit

load of 260 kg/h. Operation with thesame throughput but a significantlyreduced polymer dose of 10 to 11kg/tDR has resulted in a dewateringdegree of 23 to 25 %.

The performance data of a mobilecentrifuge unit are listed additionallyfor comparison. This centrifuge wastested for several weeks just beforeour RoS 3Q screw press.

The test results of the RoS 3Q620 are a complete success:

➤ Problem-free continuousoperation managed by the localoperating staff on their own

➤ Significantly better dewateringresults than a centrifuge withcomparable polymer doses

➤ Comparable dewatering resultswith a significantly lower polymerdemand of the RoS 3Q screwpress

➤ The energy demand of the RoS3Q screw press is by a factor of10 lower

In addition to the above performancedata the new screw press excels withvirtually noiseless operation andminimum wear – the same qualitiesfor which our well-proven basic RoS3Q models have been known foryears. The very simple maintenanceconcept of the RoS 3Q 620 shows thatthe focus of our development workhas not been limited to just increa-sing throughput capacity.

integrated in the local system so thatit can be operated 24 hours. Afterintensive briefing of the local opera-ting staff they have operated thescrew press on their own.

The results of the 8-week opera-tion period:

The screw press has been operatedboth during the day and, without anyoperator attention, during the night.After optimisation of the press opera-tion by the local staff the unit achie-ves the following results:

The continuously operating screwpress needs a specific polymer doseof 14 to 15 kg/tDR to achieve dewate-ring degrees of 27 to 29 % with athroughput of 9.5 m³/h and a solids

Drying the sewage sludge of more than 120,000 PE

Two-stage HUBER Belt Dryer on WWTP Balingen – first operating results

The wastewater of more than120,000 people is treated on WWTPBalingen, Baden-Württemberg, Ger-many. The generated dewateredsludge, along with other sludges fromthat region, is dried in an innovativeHUBER Belt Dryer.

The heat required for the drying pro-cess is provided by the thermal post-combustion unit of a sewage sludgegasification plant and a block heatand power plant operated with diges-ter gas, with the result of two diffe-rent temperature levels. It as definedas primary goal to most efficientlyuse these two heat sources in the dry-ing plant. The HUBER BTplus 2-2 dry-

er installed at Balingen is thereforethe first HUBER Belt Dryer with twodifferent temperature levels andadditionally insulated head pieces.

The dryer is divided into two tempe-rature zones to ensure the higher dry-ing velocity at high temperatures isadequately used. The low temperatu-re zone is supplied with the approxi-mately 90 °C flow from the block heatand power plant, while hot waterfrom a synthesis gas burner of thesewage sludge gasification plant isutilised in the high-temperaturezone. Thus, most of the energy requi-red for drying can be generated fromdried sewage sludge.

Aerial photo of WWTP Balingen, source: ZV Abwasserreinigung Balingen

Belt dryer on WWTP Balingen with two temperature zones for efficient sewagesludge drying

Input Dewatered sewage sludge with approx. 28 % DR approx. 5,700 Mg/a

Output Dried sludge with approx. 85 % DR approx. 1,885 Mg/a

Capacity Dewatered sludge throughput (28 % DR) approx. 880 kg/h

Water evapora-tion Water evaporation (28→85 % DR, 6,500 h/a) > 3.815 MgH2O/a

Thermal energydemand Specific heat demand (28→85 % DR) < 830 kWh/MgH2O

Electric energydemand Specific power demand incl. all ancillary units < 100 kWh/MgH2O

Technical data of the HUBER Belt Dryer on WWTP Balingen

The rest of the heat required to coverthe total energy demand is providedby a boiler which can be operatedwith the biogas from the digester orwith natural gas. A part of the energy(up to 260 kW!) is extracted downst-ream of the dryer and returned to theWWTP’s heating system so that virtu-ally the complete exhaust heat fromthe WWTP is utilised with a minimuminput of primary energy.

After start-up of the gasification plantin spring 2011 the belt dryer success-fully passed the performance test.The plant was officially put into ope-ration in September 2011, which wascelebrated with an Open Day. TheHUBER Belt Dryer has proven its effi-ciency right from the beginning. Evendifficult to treat sludges from five dif-ferent external sewage treatmentplants have been no problem, neitherfor the dryer nor for the pelletisingsystem developed by HUBER.

No wonder Dipl. Ing. Joachim Hölle ofthe engineering office Dr. Götzel-mann+Partner (Stuttgart-Balingen)and Siegfried Sauter, manager ofWWTP Balingen, have only goodthings to say. They are fully satisfiedwith the dryer performance althoughthey had some doubts initially if theHUBER feeding and pelletising sys-tem would be able to handle theexternal sludges. Now they are espe-cially happy that the results the dryerachieves even exceed the guaran-teed performance results. Furthermo-re, they have never experienced anydust or odour problems.

We would like to use this opportunityto thank the engineering office Dr.Götzelmann+Partner and the Balin-gen association for sewage treat-ment for their perfect cooperation inthe complete project. The vision ofthe Balingen association for sewagetreatment is an energy self-sufficientwastewater treatment plant. We areproud to contribute our share withHUBER products.

Berching

WASTE WATER Solutions

Page 3 Sludge Treatment

Targeted marketing of sewage sludge utilisation plants

HUBER and WTE plan to found new sludge2energy GmbH

The two managing directors of the new sludg2energy GmbH: Jörg Köring (left)and Harald Plank (right)

Essen

S2Esludge2energyby HUBER & WTE

The logo of the new company: S2E asabbreviation for sludge2energy

The sludge2energy system has beenwell known among experts for seve-ral years already as an innovativeHUBER solution for decentralisedsewage sludge utilisation. Our initialidea to utilise the waste materialsewage sludge as a resource hasbecome reality: The sludge2energyplant in Straubing has operated suc-cessfully since its installation.

The demand for thermal sewagesludge utilisation is rising worldwidebecause landfilling and agriculturaluse of sewage sludge is not allowedany more or will soon be prohibited inmore and more countries. The slud-

ge2energy system is a cost-effectiveand sustainable solution which provi-des security of sewage sludge utilisa-tion.

➤ Sewage sludge is utilised in adecentralised system on site.

➤ The energy contained withinsewage sludge can be used forenergy self-sufficient plantoperation.

➤ The ash from mono-incinerationof sewage sludge is rich inphosphorus and therefore a goodsource for phosphorusrecovery.

In cooperation with WTE in EssenHUBER have used their experience todevelop the sludge2energy systemas a turnkey solution for sewage slud-ge utilisation.

The comprehensive expertise of bothcompanies in the fields of sludgetreatment, sewage sludge drying,incineration, and manufacture andoperation of plants has been used todevelop a cost-effective and reliablemodular system which meets specificcustomer requirements.

The planned joint enterprise slud-ge2energy GmbH will based in Ber-ching. It will develop and implementcustomised solutions for sewage

Solar dryers are in demand worldwide even for big and medium-sized wastewater treatment plants

Sludge drying with solar power

Solar dryer under construction at Utah – a reasonable solution even in climatezones with cold winters

The sun makes sludge a valuable resource: the solar dryer at Cali produces fertilizer

Tooele

Cali

Solar drying of sewage sludge is atechnique that is increasingly usedby operators of medium-sized andlarge wastewater treatment plants toreduce sludge disposal costs and atthe same time protect the environ-ment. Previously, primarily smallersewage treatment plants and particu-larly plants in Germany and Francehave used solar sewage sludge dry-ers. Today, even operators of medi-um-sized and large wastewater treat-ment plants from all over the worldorder solar dryers.

For more than a year a HUBER solardryer has been in operation in a tropi-cal climate zone at Cali, a large city in

Colombia. The dryer handles a waste-water flow in excess of 5 m³/s. Highsolar radiation combined with anadditional heating render it possibleto process up to 60 m³/s press sludgeon some days. Four type SRT 9 machi-nes are installed at Cali to dry thesludge directly at source and use it asfertilizer for the production of sugar-cane. Previously, the sludge had tobe transported to a landfill by trucks,which was quite an expensive soluti-on. First tests seem to prove thathygiene standards as high as Class Acan be met even under such tropicalconditions. Sludge feeding at Cali hasbeen automated – a elegant and eco-nomical solution even for largeplants. An about 50 m long conveyingbelt has been installed to transportthe sludge from the existing dewate-ring building to the new greenhouseswhere the sludge is distributed toindividual treatment lines to be pro-cessed by the HUBER machines. Inthis way the fully automated solardrying system could be integratedinto the customer’s existing system.

If maintenance work needs to be car-ried out on the conveying belt, eachline can optionally be fed with awheel loader. At the push of a buttonplant control can be changed fromautomatic ’slice by slice’ feeding towheel loader feeding to process big-ger sludge volumes. The systemremains operable even if individualaggregates should fail temporarily.After 100 m in the drying bed thesludge is all dry and automaticallytransported to a storage tank. Again,the dryer remains operable even if

automatic dry sludge removal shouldfail. The sludge bed in the greenhou-se would then grow and serve as abuffer. The dry sludge, reduced inmass and volume, is hygienic, usual-ly harmless in hygiene/epidemicterms, and easy to process because itis a stable, free-flowing, pea size gra-nulate. The dried sludge has becomea valuable resource. After intermedia-te storage the dry sludge is furthertransported by trucks.

Another HUBER dryer is installed atTooele, Utah on a dry high plateaunear Salt Lake City. This medium-sized plant removes 1,000 tons drymass a year from wastewater. The

sludge utilisation and offer them onthe global market.

The sluge2energy GmbH providesengineering support, manufactureand operation of turnkey productsand financing of sewage sludge utili-sation plants. The managingdirectors of the new sludge2energy

GmbH are Mr. Jörg Köring (WTW) andMr. Harald Plank (HUBER SE).

Both have gathered broad experi-ence over many years in their mothercompanies and will for the first timerepresent their new company at theIFAT 2012 (hall A2, stand no. 333, andhall B1, stand no. 155).

complete sludge treatment stage hasbeen redesigned. HUBER suppliednot only three SRT 11 dryers but alsotwo RoS3 dewatering units which areinstalled directly beside the green-houses. The work on site is still goingon, plant start-up is planned to takeplace in spring 2012. The combinati-on of screw press and solar dryeroffers the customers some advan-tages: The number of interfaces isminimized. The long operating timesthe screw press offers can be usedfully because the solar dryer can con-tinuously take up dewatered sludge.Both processes are well matched.The distance to be covered by con-veying systems is short. The solardryer operates independently, dryerfeeding is started by starting thescrew presses. If the operator startsthe screw press, he can take awaydry granulate at the discharge end ofthe greenhouse. At Tooele the sludgeis dried with solar power alone, thisgives of course the best eco-balance.The energy consumption of the sys-tem is so low that it can be disregar-ded in the total cost balance. The cus-tomer had informed himself in detailabout the solar drying systems avai-lable on the market and in the endconsciously selected the HUBER solu-tion. Quality, long life, robustness,

functions, reliability – these were thereasons that convinced him of ourproduct.

The biggest HUBER solar dryer pro-ject is presently under constructionat Zagan in Poland, located betweenBerlin and Wroclaw. About 1000 t drymass will be treated on this site witha cost-optimized technical solution.Three SRT 11 dryers will be installedin about 120 m long greenhouses.Wheel loaders will feed the sludgebut the system offers the option foreasy later automation. Also at Zaganthe sludge will be dried with solarpower alone.

In all three projects HUBER coopera-tes with local contractors who buildthe greenhouses and adjoining orauxiliary buildings or carry out con-crete work, foundation work, wiringand installation. HUBER supports the-se contractors with technical draw-ings, check lists and consultancy toensure problem-free project executi-on to the satisfaction of all partiesinvolved. More than half the invest-ment costs for the projects relate tolocal work. This percentage is evenhigher where feed and dischargeautomation is provided by the localcontractor as it is the case at Cali forexample.

All three projects show that solar dry-ing works in very different climatezones and under very different condi-tions. Solar drying can be an econo-mical and sustainable solution in allregions of the world. The HUBER sys-tem provides flexibility in the level ofautomation, it can easily be plannedand installed by contractors. Also allthe inquiries we receive from diffe-rent countries indicate that solar dry-ing on medium-sized and bigger was-tewater treatment plants can be areasonable sludge treatment soluti-on. With our excellent core productswe are able to offer HUBER solutionsfor any application.

Solar sewage sludge drying is thesame simple principle as drying clo-thes on a line: It is easier to use thepower of the sun to remove the waterfrom the sludge than to apply com-plex technical systems.

Berching

Berching

Mechanical Wastewater Treatment Page 4

New TrashMax® screen for the reliable removal of bulky coarse material

Sturdy screen for coarse material removal

HUBER is in the fortunate position ofhaving a wide range of screens whichallows us to offer every customer theperfect solution for his specific requi-rements. This guarantees our custo-mers problem-free plant operation.On the basis of the function principleof our multi-rake bar screen we havedeveloped the new coarse materialscreen TrashMax®. The TrashMax®screen offers all the benefits of ourmulti-rake bar screens and in additi-on an extra sturdy design for theremoval of coarse material. Thescreen is ideal to be used in pumpingstations, as first treatment stage ofwastewater treatment plants orindustrial plants, and in the inlet topower plants. It removes coarse andbulky material and therefore protectsdownstream systems.

An important functional element ofthe screen is its bar rack whichretains the coarse material. Thescreen rakes of the TrashMax® screenmesh with the rack bars at the bot-tom dead centre, at first with the

Schematic drawing of a TrashMax® screen

Both ends of the cleaning rakes areconnected to robust drive chains. Twowear-resistant rollers on each side,running in lateral guiding tracks,ensure true and smooth running ofthe rakes as they move upwards withthe result of reliable intensive barrack cleaning. Each chain is driven bya sprocket on a common shaft and agear motor. Frequently, screens needto be adaptable to specific site requi-rements. Especially with givenhydraulic and structural conditionsthe TrashMax® screen is ideal due to

its versatility and flexibility. Due tothe screen’s compact design itsheight above floor is very low. Alsoscreen installation length is veryshort as the screen can be installed atangles between 70° and 85°. In short:With this screen type, solutions canbe provided for virtually any applica-tion, even and especially with givenhydraulic and constructional conditi-ons.

As described above, the screen rakesattached to the chain system reliably

ensure continuous bar rack cleaningwith short removal intervals. Thelower part of the TrashMax® consistsin the steep conveying section follo-wed by the upper part, the flat disch-arge section with a small inclination.This screen design guarantees thereliable discharge of screenings intoa downstream transport or disposalsystem. With the development of thenew TrashMax® screen HUBER hassuccessfully added another innovati-ve coarse material screen to its pro-gram of screening solutions.

back cleaned screen and then withthe behind front cleaned screen. Thisavoids the accumulation of materialin front of the screen and even extre-mely bulky objects are reliably remo-ved by the screen rakes and trans-ported upwards out of the channel.As the screen rack gets more andmore blinded, flow resistance increa-ses and consequently the water levelin the channel in front of the screenrises due to the accumulating materi-al. The HUBER TrashMax® screen isable to remove this material veryquickly and thus reduce the waterlevel within a short time. The Tras-Max® achieves this with its cleaningelements. Attached to the chain sys-tem, these elements can easily beadjusted to different requirementsand are therefore able to reliablyremove even heavy loads and bulkyscreenings. As the cleaning rakes canbe variably adapted, removal capaci-ty is then adjustable. The benefit ofhigh cleaning efficiency is especiallyfavourable for high solids loads.

30% increase in screening surface with star-shaped screen drum

Further developed ROTAMAT® Rotary Drum Fine Screen with increasedhydraulic capacity: ROTAMAT® Perforated Plate Screen RPPS-Star

Two-dimensional screen basket of a ROTAMAT® Perforated Plate Screen RPPS

Star-shaped screen drum of the ROTAMAT® Perforated Plate Screen RPPS-Star

tion depends on to what extent hairsand fibres must be removed to meetthe specific requirements of thedownstream clarification systems.

Two-dimensional perforated platescreens achieve a high removal ofhairs and fibres, i.e. two to four timesthe amount of solids are removedthan one-dimensional screens areable to separate. The significantlyincreased separation efficiency isaccompanied by a high level ofscreen surface blinding and requireslarger dimensioning of the finescreens compared to other common-ly known wedge wire screens. Con-ventionally, a screen basket with big-ger external dimensions is used toachieve larger dimensioning with theresult of significantly increasedinvestment costs and even building

costs as a bigger channel is required.We have solved this problem with ourROTAMAT® Perforated Plate ScreenRPPS-Star: The perforated plate ofthe screen basket is folded in axialdirection like an accordion. The zig-zag folds form the star-shaped screenbasket (RPPS-Star). This increasesthe screen basket surface by about30% with still the same nominal dia-meter.

The filter drum of the ROTAMAT® Per-forated Plate Screen RPPS-Star iscleaned by a water jet sprayingagainst wastewater flow direction.This ensures that fibres and scree-nings are reliable washed from thedrum surface and removed by thecentrally arranged conveying screw.With this innovation we have made a

’traditional’ machine fit for the future.We are well prepared for higher futu-re requirements related to separationefficiency and hydraulic throughput.The extensive experience gatheredfrom real size installations is reflectedin the continuous development andoptimisation of our fine screens.

Compared to one-dimensional wedgewire screens, the two-dimensionalperforated plate screen achieves asignificantly higher separation effi-ciency. Due to its star-shaped screendrum the ROTAMAT® Perforated PlateScreen RPPS-Star has a by about 30%larger screening surface, with thesame small nominal diameter andwith the result of a significantlyincreased hydraulic throughput capa-city.

These screens with a two-dimensio-nal perforated plate rely on the uni-que system of HUBER ROTAMAT®machines which combines screening,washing, transport, compaction anddewatering in a single unit. Additionaladvantages, such as shear-forceresistant and wear resistant screensurface cleaning and a high frequen-cy of screen surface cleaning perminute, guarantee maximum effi-ciency and operating reliability. Perfo-rated plate for two-dimensionalscreenings is primarily used forscreens with apertures > 1 mm. Forfiner screening < 1 mm we use thenewly developed ROTAMAT® Mem-brane Screen RoMem with filtermesh. HUBER ROTAMAT® PerforatedPlate Screen RPPS units are equippedwith 1 to 5 mm perforated plate. Theselection of the mesh size or perfora-

On the basis of the worldwide knownand well-proven system of HUBERROTAMAT® fine screens with wedgewire screen basket we developed theultra-fine ROTAMAT® Perforated PlateScreen RPPS with perforated plate.The two-dimensional screen (perfora-ted plate) ensures the reliable remo-val of hairs and fibres and avoidsthat:

➤ fibres and hairs hinder the stableoperation of membrane plantsand increase maintenancerequirements, these materialstend to entangle on themembranes and lead to reducedmembrane plant efficiency

➤ these products form tresses in thewastewater treatment plant, thiswould impair oxygen supply tothe aeration system with theresult of problems occurring inthe sludge treatment line

Berching

Loisville

WASTE WATER Solutions

Page 5 Mechanical Wastewater Treatment

HUBER USA successfully placed the company´s largest HUBER RakeMax® screens to date into the market in Loisville, Kentucky

HUBER project in Louisville, USA

HUBER USA successfully placed thecompany’s largest HUBER RakeMax®screens to date into the market inLouisville, Kentucky. The three Rake-Max® 22300 x 2752 x 13 screenswere installed at the Derek R. GuthrieWater Quality Treatment Center inLouisville, KY with official startup cur-rently scheduled for spring 2012.

Along with the growing awareness ofthe reliability and robustness ofHUBER products in the USA market,the inclusion of our equipment in lar-ge-scale projects has become increa-singly popular. As evidence of thistrend, HUBER USA received the orderto supply 3 RakeMax® size22300x2752x13 to the Derek R.Guthrie Water Quality Treatment Cen-ter which is situated 30 kilometers The plant in Louisville, Kentucky

south of Louisville, Kentucky, 136meters above sea level. Each screenis rated for 7,6 m3/s and this installa-tion is part of a $850 million Integra-ted Overflow Abatement Plan inten-ded to improve water quality in thegreater Louisville area. These impro-vements are mandated (but not fun-ded) by the United States govern-ment (EPA).

During dry weather the Derek R.Guthrie Water Quality Treatment Cen-ter receives approximately 0,88 m3/sof wastewater flow. All sewers thatserve this plant are separate from thestorm water system. However, a por-tion of the greater Louisville waste-water collection system utilizes acombined sewer system and, duringwet weather flows, those areas direct

Tertiary filter stage to upgrade wastewater treatment plants with insufficient effluent quality

HUBER RoDisc® Rotary Mesh Screen as tertiary filter stage

RoDisc® Rotary Mesh Screen for the retention of activated sludge flocks

28 RoDisc® Rotary Mesh Screen units with 24 discs each treating bout 8.5 m³ wastewater per second

of the nutrients phosphate and nitra-te in surface waters can lead to eutro-phication, growth of algae and waterplants, oxygen depletion, and to fishdying and death of other water ani-mals. Combined with precipitationand flocculation the micro screen canreduce phosphorus to a very low con-centration. Precipitants transform theorthophosphate contained within thewastewater to hardly water-solublematerials. Flocculants transform theproduced micro flocks to macro flockswhich can be removed by the microscreen.

The HUBER RoDisc® Rotary MeshScreen meets not only the require-ments of today but sets the coursefor the future. Many of the methodsfor advanced wastewater treatmentwhich are increasingly used today,such as disinfection and reduction oforganic trace substances, requireprior micro screening. UV disinfection

systems for example need a virtuallysolids-free flow to work effectively.Frequently, activated carbon powderis used to reduce organic trace sub-stances to release the load in ourwaters. Reliable removal of the acti-vated carbon power laden with theremoved organics is then required.The HUBER RoDisc® Rotary MeshScreen ensures that virtually all sus-pended materials are removed fromthe wastewater so that additionaldownstream treatment stages can beoperated. Investment and operationcosts for micro screenings are usuallymore than compensated becausemicro screening saves the money foradditional plant components. Microscreening substantially contributesto the protection of our waters, todayand in the future. So, the option of afiltration stage should definitely beconsidered when planning to expandor upgrade a wastewater treatmentplant.

The HUBER RoDisc® Rotary MeshScreen is a quick and efficient soluti-on if you want to upgrade your was-tewater treatment plant and ensureto produce a virtually solids-freeeffluent. Upgrading is especiallyrequired if the secondary clarifierdoes not work effectively and flockspass into the channel. Our microscreen prevents concentration of sus-pended material, significantly impro-

The plant in Louisville, Kentucky

flow to the City’s Morris Forman Was-tewater Plant located a few kilome-ters west of Louisville. When maxi-mum permitted flows are reached atthe Morris Forman Wastewater Treat-ment Plant, additional flow is diver-ted to the Derek R. Guthrie WaterQuality Treatment Center where up to13,1 m3/s will be treated through theHUBER RakeMax® screens.

The expansion of the Derek R. Guth-rie Water Quality Treatment Center tohandle wet weather flows will benefiteveryone in the Louisville community.Large wet weather flows will be trea-ted and discharged to the Ohio Riverrather than allowed to overflow intothe region’s streams. This projectrepresents the second largest capitalexpenditure in the Louisville Metro-politan Sewer District’s history and isa major component of a federal con-sent decree to clean streams, elimi-nate sanitary sewer overflows, andminimize combined sewer overflowsin the Louisville area.

At the planned start-up date in spring2012, the improved Derek R. GuthrieWater Quality Treatment Center with

the HUBER RakeMax® screens will gointo service. HUBER is now an essen-tial part of a large effort to improvewater quality in the greater Louisvillearea and all parties involved with thisorder expect the project to become areference that will generate follow-uporders.

Facts and Figures

➤ 3 x HUBER RakeMax®22300x2752x13

➤ Max. flow per machine: 7,665 l/s(175MGD)

➤ Start-up: spring 2012

ves effluent quality and thus substan-tially contributes to the protection ofour waters.

The installation of a filter stagedownstream of the secondary clari-fier is an efficient and inexpensiveoption to upgrade a wastewatertreatment plant. Insufficient tankdepth, high hydraulic loads or thepoor settling behaviour of activated

sludge are the most frequent reasonswhy wastewater treatment plants aresometimes unable to reliably meettoday’s minimum requirements onthe concentration of filterable solidsin the effluent. The overflow of flocksincreases COD, BOD, N and P loads inthe effluent and receiving water cour-se with the result of increased disch-arge fees. A HUBER RoDisc® RotaryMesh Screen as tertiary filter stage isable to guarantee a virtually solids-free WWTP effluent. Due to thegravity flow through our RoDisc®Rotary Mesh Screen and its low pres-sure loss the screen can easily beintegrated into existing sewage treat-ment plants. Due to its small spacerequirements and modular designthe RoDisc® Micro Screen can be tai-lored to suit any specific site require-ments and keeps the structural alte-ration work required to a minimum.

An ineffectively working secondaryclarifier is however not the only rea-son for upgrading a wastewater treat-ment plant with a downstream microscreen. Especially the accumulation

Jyväskylä

Berching

Mechanical Wastewater Treatment Page 6

What should a good grit washer be able to do?

Separate the wheat from the chaff

Picture 2: Superior function and grit yield

Picture 1: Do you want to separate grit or waste space with empty containers?

would lead to the loss of the fine sandspectrum from 200 to 350 µm. Withthe use of our patented organicsdischarge solution heavy organic par-ticles are simply removed at the endof the washing process to guaranteean always optimal room for sedimen-tation for all particles.

Washing efficiency:

Although our patent gives us compre-hensive copy protection and preventscompletely uncontrolled copying,each of our competitors tries tosomehow get around one distinctpatent claim. But, in the end, all gritwashers have a conical tank with aninclined grit removal screw, a pressu-re probe and an organics dischargeinstalled on the tank, without kno-wing what it is actually good for.

Some have tried to replace the stirrerwith pressure air without taking intoaccount that the pressure probe willnot deliver continuously stable mea-surements any more. Former collea-gues have tried to install only distri-bution channels in the wash zonewhere we use our patented perfora-ted plate bottom solution. Their sys-tem cannot create a steady fluidizedbed with the result that their plantsometimes washes but sometimes byfar fails to achieve the guaranteedloss on ignition of < 3%. Others havetried their luck with a fast runningstirrer (40 rpm) to achieve fluidisati-on and wash the grit. At such a speed,however, the pressure probe in thetank is not able to deliver reliablemeasurements and there is also enor-mous wear.

Most competitive product do not at allcare about a homogenous fluidizedbed but stir the settled solids withoutinterruption. This may work as longas there is hardly any grit to wash butif there is more grit the removal screwwill discharge the grit along with theorganics like a classifier or the gritwill leave the plant via the outlet, andit all ends up again with ‘There is nogrit!“. There is a litany of how compe-titors try to wash grit and it would gobeyond the scope of this article tomention them all, except that someof our ‘smart’ international competi-tors copy our COANDA Grit Washer

1:1 at least in appearance but unfor-tunately have neither the requiredknow-how or any clue about propercontrol of grit washing processes.

Wear protection:

Grit is a very critical material andcauses wear especially when it ismoving. After all, complex grit trapsare used on many sewage treatmentplants with good reason to improvethe service life of pumps and pipe-lines. That is why we attached greatimportance to wear protection rightfrom the beginning. We avoid highrelative speeds of the rotating aggre-gates (stirrer, screw) of our COANDAGrit Washer and the grit removalscrew has high-quality journalbearings on both ends (silicon carbi-de / chilled cast iron bearings) so thatthe auger does not scratch the troughwalls. Welded conveyance bars, plas-tic shells or cheap bearings shouldhave no place in grit handling sys-tems. The stirrer in the COANDA GritWasher always operates in a homo-genous grit fluidized bed so that thefluidized grit offers only little resis-tance to the stirrer arms. But as somewear cannot completely be avoidedall stirrer arms of our COANDA GritWasher units are made of 30 mm dia-

meter full material. Due to the lowrelative velocity and the massivematerials used we can guarantee aservice life of about 20,000 operationhours.

Conclusion:

If you are interested in buying a gritwasher, check offers for the featuresa good grit washer should provide:

➤ low surface overflow rate

➤ circumferential overfall weir

➤ separate organics discharge

➤ grit washing and removal evenduring feeding

➤ washing function / fluidisation

➤ grit removal screw supported onboth ends

➤ high solids throughput

Rely on our expertise in grit washing.You can be sure to be in best hands(pic. 2). We do not want to sell somehundred kilos of stainless steel to ourcustomers but provide them with atechnical solution that really helpsthem to save a lot of disposal costs.We are true to our word.

Separation efficiency:

The separation efficiency of a gritwasher depends on the feedingarrangement, surface loading andeffluent quality. But what needs to beavailable as well is a separationchamber, i.e. a water volume whichallows the solids (here grit and organ-ics) to settle quickly. An efficient gritwasher achieves a constantly highseparation of organic material. Wehave carried out measurements onour own test stand. Both our resultsand external measurements at a uni-versity prove that central feedingthrough a vortex chamber and aCOANDA Tulip provides optimal pre-conditions for good separationresults. This advantageous feedingarrangement, combined with a largewater surface (low surface overflowrate) and a circumferential overfallweir, significantly reduces the veloci-ty from the inlet to the outlet weir sothat grit particles > 200 µm are reli-ably separated. The use of an over-flow weir avoids the suction effect,i.e. the acceleration of outflow water.However, even the best dimensionedgrit washer will not achieve satis-factory separation results if there isnot enough room for sedimentation.It is generally known that a lot ofheavy organic particles settle withthe fine sand which can only be‘blown out’ of the plant if the velocityis increased. But this phenomenon

When we launched our COANDA GritWasher in 1994 and started its suc-cess story it was not long before com-petitors came up with their own gritwashers. In the beginning, most ofthem fortunately did not know whatexactly to think about our product.But as the demand from the marketincreased all our ’friends,’ one afterthe other, became active, at first inGermany, the ‘birthplace’ of thisinnovation, later also abroad wherethere are often no scruples to copy aswe all know well.

But no other grit washer would evencome close to being comparable withour COANDA Grit Washer in terms offunction and efficiency. There aresome factors that always must betaken into account to evaluate thequality of a grit washer: separationefficiency, washing efficiency (quali-ty of washed grit), wear resistance.HUBER has meanwhile sold almost2,000 COANDA Grit Washer units.

Maximum benefit from HUBER Wash Press WAP with more than 4,000 mm feed through length installed in Finland

Continued success of HUBER Wash Press WAP

Success ful installation of a WAP 4 with 4,200 mm feed trough length for 2EscaMax® screens, size 5000x1552x6

WAP with extra long feed trough up to 4,200 mm maximum has proven well forsize 4 with standard guarantee values

The increasing demand for economi-cal machines produces a variety ofinnovative technical solutions, suchas on WWTP Jyväskylä for example.Jyväskylä is Finland’s seventh largestcity and located in central Finland.

In summer 2011, the two 3 mm stepscreens previously installed on sitewere replaced by two HUBER Esca-Max® screens with 6 mm perforation.A HUBER Wash Press WAP with extralong feed trough could successfullybe used for the screen’s dischargewidth of 2 x 1,552 mm. The size 4Wash Press has a feed trough lengthof 4,200 mm and is able to handle themaximum screenings throughput of 4m³/h. If the HUBER EscaMax® screens

are operated continuously, a washwater amount of about 3 l/s is gene-rated by the spray nozzle bars of thetwo screens. This amount is easilyhandled by the Wash Press.

Facts and figures installedmachines:

➤ 2 x EscaMax® 5,000 x 1,552 x 6

➤ 1 x WAP size 4 with extra longfeed trough 4,200 mm

➤ 1 x Ro 8t

➤ 1 x WAP/SL size 2

➤ 1 x RoS 2 size 4

The 6 mm HUBER Belt Screen Esca-Max® with perforated plate increasesseparation efficiency and generatestherefore twice the amount of scree-nings of a 3 mm step screen. It must

be considered that a 3 mm stepscreen is able to achieve comparableseparation degrees provided impoun-dage level and filter carpet formationare optimal.

It should also be mentioned that4,200 mm feed trough length hasproven well as maximum feed troughlength for WAPs size 4.

Bavaria

WASTE WATER Solutions

Page 7 Mechanical Wastewater Treatment

Unbeatable also in Spain

Sewer grit treatment system on the Iberian Peninsula

The acceptance area of the sewer grit treatment plant at San Sebastián

Once they knew that the HUBER plantis able to produce recyclable materialfrom sewer grit, the municipality ofSan Sebastián issued a public invita-tion to tender at the beginning of2009. It was the company Aqualiathat won the tender and was commis-sioned to execute the project on thebasis of the Irun example. Of course,bigger units had to be used due tohigh throughput requirements (3m³/h raw material) but this was noproblem with the modular HUBERsystem. Aquilia ordered the machinesand electrical equipment in June2009, HUBER supplied the equipmentalready in October 2009. Also theinstallation time was very short sothat the complete plant could be putinto operation in December.

Since that day up to 80 sewercleaning vehicles a month dischargetheir load into the HUBER plant. The

material comes mainly from thesewer system of San Sebastián andfrom several of the municipality’spumping stations. Via a separate linethe tanker vehicles press the liquidphase directly into the RoSF9 washdrum. This reduces odours and signi-ficantly improves the hygiene situati-on for the operating staff. The solidsin the tanker vehicles are then emp-tied into the RoSF7 acceptance tankwith a storage volume of 16 m³ fromwhere they are discontinuously fed tothe treatment plant. The RoSF9 washdrum (1,650 mm dia.) removes andwashes out all disturbing materialbigger than 10 mm. Along with thescreenings this material is transpor-ted to a landfill for further treatment.A cantilever pump delivers the gritfraction in the underflow of the RoSF9wash drum into the RoSF4 grit was-her (3 t/h throughput) where the gritis separated, washed and dewatered.

The HUBER sewer grit treatment sys-tem RoSF5/H has instantly had thesuccess our German, national foot-ball team has been running after foryears but somehow cannot seem toreach: It came. It was seen. It won.

The first sewer grit treatment plant inSpain was put into operation at theend of 2007 in a pumping station ofthe town Irun. Irun is located in pictu-resque scenery directly on the Atlan-tic coast and on the border to France.The sewer grit treatment plant con-sists of several well-known standardi-sed HUBER grit treatment products:RoSF7 grit acceptance tank, RoSF9wash drum, RoSF4 grit washer. Theplant is installed underground andabsorbs virtually everything comingfrom the sewer. The owner of theplant is the company Servicios deTxingudi which is in charge of watersupply, wastewater treatment andwaste management in the municipa-

San Sebastián Irun

Germany’s energy turnaround is areason for many wastewater treat-ment plant operators to try to impro-ve their energy situation and takegreat efforts to cover the electricenergy they need themselves. Thereare two approaches how to achieve

this ambitious goal: save energyand/or increase own energy producti-on. This article describes how to pro-duce more digester gas, and thusmore regenerative energy, throughoptimal screenings treatment with aHUBER WAP/SL Wash Press.

Cost-effective screenings treatment for any application

Increased gas yield with WAP/SL

HUBER Screenings Wash Press WAP/SL units with powerful high-turbulencewashing for throughputs up to 12 m³/h installed in Finland

Use a WAP/SL to increase diges-ter gas yield by up to 38,000Nm³/a

The HUBER Screenings Wash PressWAP/SL is able to achieve a virtuallycomplete washout of organics fromscreenings. This returned carbon loadis available as an additional sourcefor digester gas production.

We have proven in both laboratoryand practical tests on a wastewatertreatment plant in Bavaria that thiseffect occurs with significant intensi-ty also in practice. This 18,000 PEwastewater treatment plant has arather short sewer system and theload of faeces contained within thescreenings is very high. The faeceswashed out from the screenings con-sist primarily in organic carbon. Themicroorganisms inside the digestertransform this organic carbon intomethane. After every wash cycle ofthe WAP/SL the sludgy wash waterwith its high organic load is introdu-ced into the channel downstream ofthe screen. All settleable materialsettles there and the sediments arepassed on to the digester as primarysludge.

Results

Results have shown that digester gasyield can be increased by up to 20%with the use of a HUBER Wash PressWAP/SL, which means an additionalgas yield of up to 104 Nm³ per day. Asthe produced digester gas is used tooperate a block heat andpower plant,more gas means also more energyand heat. The additionally producedpower can be used on site or fed tothe power network. Up to 15,000euros per year can be saved in thisway.

The benefits of screenings treat-ment with a WAP/SL Wash Press

When evaluating the economic effi-ciency of screenings treatment thefocus has previously been onweight/volume reduction, which is upto 70% with a WAP/SL, depending onDS content. Volume and weightreduction reduces both the volume ofscreenings that require expensivedisposal and the number of disposaltransports required. But a holisticevaluation of economic efficiencyshould also include the advantage ofan increased yield of energy in the

form of gas, power and heat. TheHUBER Wash Press WAP/SL is an opti-on for sewage treatment plant opera-tors to take another step towards anenergy self-sufficient wastewatertreatment plant. If we take intoaccount the costs that can be savedthrough reduced disposal costs andthe additional money that can be ear-ned with the additional energy produ-ced, the payback period of the invest-ment can significantly be reviseddownward.

The wash water with its high carbon load is returned to improve denitrificationand gas yield

Finnland

lities of Irun and Ondarribia.

Just a year later the municipality ofSan Sebastián, only about 30 kmwest of Irun, was also faced with pro-blematic sewer grit – which nobodywants to have. It should be noted bythe way that the Atlantic coast innorthern Spain is one of the country’smost beautiful tourist regions. Forthis reason, and in view of everincreasing disposal costs, it seemsnot reasonable any more to landfillsewer grit. The municipality of SanSebastián contacted therefore Servi-cios de Txingudi and they carried outtrial operations with the materialfrom Aguas del Añarbe on WWTPIrun. Aguas del Añarbe is the name ofthe plant operators in San Sebastián.Test results were positive as we hadexpected because our system com-ponents are designed to treat suchcritical material.

It goes without saying that the was-hed grit has a loss of ignition below3%. The treated grit is stored on theWWTP to be used as secondary buil-ding material.

With this sewer grit treatment plantSan Sebastián found a quick respon-se to the rising disposal costs inSpain. Even the local TV stationreported about this great, innovativesolution. Half a year later HUBERSpain received the order for anothercomplete sewage grit treatmentplant for WWTP Arazuri at Pamplona.The machines supplied to Arazurihave meanwhile been put into opera-tion.

Advantages of HUBER sewer grittreatment plants:

➤ All contents of tanker vehicles canbe treated in one place

➤ No water or sludge hinders solidstransport

➤ No annoying puddles of water atthe deepest point of the tank

➤ Big aggregates ensure reliablematerial flow and easy operation

➤ No installation of differentmetallic materials (no carbonsteel)

➤ Best clarification results for safeutilisation

It is a pity that the financial crisisinhibits important investments intoenvironment-tal protection also inSpain. But time never stands still,sooner or later customers will investin our treatment technology.

WASTE WATER Solutions

Page 9 IFAT

Novelties and innovative products on the HUBER stand

Innovative solutions to increase water and energy efficiencyClimate change, demographic deve-lopment and ever scarcer resourcesincluding water have more and moreimpact on water management. Newchallenges have to be met in the fieldof wastewater disposal, wastewatertreatment and treatment of the resi-dual materials generated in theseprocesses. Particularly efficiency ofresources and energy as well as ener-gy recovery are aspects that have tobe taken into account when develo-ping intelligent and innovative futuresolutions.

HUBER SE have responded to thesenew challenges and developed seve-ral innovative products. These care-fully designed solutions are easy toinstall and operate and provide higheconomic efficiency whilst maintai-ning the high quality, long life andtechnical standards for which HUBERis known. HUBER will present thesesolutions and their complete rangeon 1,000 m2 booth area to the visi-tors of IFAT Entsorga 2012 whichtakes place in Munich from 7 to 11May (hall A2, booth no. 333).

a HUBER smartMBR – a newrange in the service of waterrecycling

In the world’s ever growing cities andin many touristic regions water shor-tage is assuming alarming proporti-ons for the people living there. Reuseof treated high-quality wastewater istherefore the order of the day. Trea-ted wastewater is frequently the onlyreliable source for service water as itis a resource of calculable availability.

Limiting conditions are in most caseslimited space, expensive land, therequirement of noiseless and odour-less operation and use of treatedwastewater without any health risk.The only modern wastewater treat-ment system that is able to meet the-se requirements is the MBR system.HUBER have responded to thisdemand with the launch of the‘smartMBR’ range of standardisedwastewater treatment & recyclingsystems which provide cost-effectiveand economical solutions for smallwastewater volumes.

The smartMBR systems have beencarefully designed so they areattractive looking and simple toinstall and operate, whilst maintai-ning the high quality and technicalstandards for which HUBER havebeen known for many years. ThesmartMBR systems come in 6 stan-dard sizes, ranging in daily treatmentcapacity from 10 m3 to 74 m3. Theyare intended for worldwide use inapartment buildings, office buildings,hotels, etc.

The standardised systems offer bestvalue, quick transport and installati-on, and easy start-up. The units arecompletely made of stainless steel toensure high product quality and along product life..

b HUBER Power Flush for plea-sant smelling sewers

The population is decreasing in someEuropean cities, dry periods are las-ting longer and longer and occurmore and more often. Each of thesefactors alone can cause severe pro-blems with unpleasant smells drifting

trough the streets and annoying thepeople living there. But the situationis getting even more dramatic whenboth occur together. Bad smellingsediments in sewers hide anotherpotential risk that however remainsinvisible: They are perfect food forvermin and rats. That is why sewercleaning is obligatory in Germanyand is preferably carried out withhigh pressure. But due to their highfresh water demand these techni-ques are not state-of-the-art anymore. In addition, they lead to extre-mely unhygienic working conditions.

The newly developed HUBER PowerFlush® is the technical solution thatnow defines the new state-of-the-arttechnology. The HUBER Power Flush®with its flushing gate removes notonly existing sediments very reliablybut even prevents future sedimenta-tion. Due to this innovative solutionsewer flushing is even independentof storm water impacts. In addition,the frameless flushing gate has beendesigned very carefully to preventthe formation of plaits or tresses.

The special challenges the designengineers were faced with were toensure the system can be retrofittedwithout interrupting sewer operation,the stainless steel flushing gate canbe used for all sewer sizes, and thesystem can be operated even with aminimum of energy – and they havedone excellent work and could solveall these problems.

c HUBER TubeWin – for heatshould not be flushed away

IMore and more municipalities realisethe energy potential that is hidden intheir wastewaters but runs offthrough the sewer system and is lostwhile they could perfectly use it toheat high-rise buildings or largeoffice buildings. That is why HUBERsuccessfully launched their RoWinHeat Exchanger recently. The HUBERRoWin Heat Exchanger is designedfor installation outside the sewer sys-tem.

But in some cases there are limitingfactors which make this efficient out-door installation impossible: limitedspace, sewer situation, availability oflocal heat utilisation. The HUBERengineers have responded to thissituation and developed a modularheat exchanger element to continuethe triumphant success of ‘energyrecovery from sewers’.

The HUBER TubeWin Heat Exchangercan very easily be installed in thesewer, irrespective of sewer shapeand diameter. It is continuouslyimmersed in wastewater whilst pre-venting sewer clogging caused bymaterials contained within the waste-water. The complete process of heatexchange takes place in an intelligentway inside the sewer. The systemlength can easily be extended tomeet specific installation require-ments.

A heat pump ensures that the energyextracted from the wastewater flow isheated to a useful temperature of 35to 55 °C. Expensive energy from sho-wer and cooking wastewaters can bereturned to the heat cycle of the buil-ding. This is not only a benefit for theenvironment but also easy on thepurse of building operators.

d HUBER TrashMax® – a screenof the special kind

They normally do their job unspecta-cularly on all of their 24-hour workdays: Year by year, screens ensureproblem-free treatment of wastewa-ter on sewage treatment plants. It isonly possible to develop a screenwhich is sturdy enough to do this jobif specialist knowledge in wastewaterengineering, many years of experi-ence and the expertise of smartdesign engineers are combined. Thenew HUBER TrashMax® is a perfectresult of such cross-discipline coope-ration.

What is spectacular, however, are thescreen’s innovative details. Its high-quality design minimises the energydemand of the screen rakes whichremove all coarse material containedwithin the wastewater and are able totake up big volumes of material com-pared to competitive products.

Even bulky objects are removed reli-ably and completely. Efficient andreliable bar rack cleaning ensureshigh operating reliability, the choiceof the right materials for the machinecombined with its operation principleensures that its reliability remains atthe same high level for the completeproduct life.

e HUBER Screw Press addsvalue to sludge

Sewage sludge is increasingly beco-ming the focus of energetic conceptswhen it comes to produce energyfrom organic solids contained withinwastewater and excess microorga-nisms not only in the form of biogas.Careful separation of water and slud-ge is therefore required as first treat-ment stage for later sludge dryingand incineration. Already at this sta-ge the demand for energy and opera-ting media decides about the ecologi-cal and economic efficiency ofdownstream treatment steps.

As the composition of wastewatercan differ greatly, sewage sludgebehaves very differently when it ismechanically dewatered. Many yearsof experience are necessary to deve-lop technically mature high-perfor-mance products with a long life andlow demand for energy and chemi-cals which are able to meet the highrequirements of specific sludge pro-perties. On the basis of the HUBERScrew Press RoS 3Q which has beensuccessful in the market and wellknown among sewage sludge expertsfor many years, HUBER have develo-ped the RoS 3Q 620 model whichoffers all the features for whichHUBER screw presses are known andin addition meets the demand forsimple maintenance in an optimalway.

Furthermore, the RoS 3Q 620 modelexcels for its high dewatering degree,low operator attendance require-ments and minimised power con-sumption. With its throughput capaci-ty of 100 to 300 kg DR per hour it isthe optimal solution for all wastewa-ter treatment plants designed for upto 50,000 PE.

Micro screens

Equipmentfor sewers

Green Building

Energy fromwastewater

a

b

c

IFAT Page 8

HUBER exhibits at IFAT 2012 from 7 to 11 May in hall A2, stand no. 333

Our stand at the IFAT 2012

Industrialsolutions

Membranetechnology

Screenings andgrit treatment

Screens

Service

Sludgetreatment

Stainless steel products

d

e

Leukerbad

Berching

Heating & Cooling with Wastewater Page 10

already. The thermal energy contai-ned within wastewater has previouslybeen lost for the residents of houses,flats and apartmens once the waste-water had disappeared in the depthsof the sewer system. This can beavoided with the use of a HUBERTubeWin Heat Exchanger. With itsheat exchanger elements, which aremounted directly on the sewer bot-tom, it is possible to transfer the highthermal energy of municipal waste-water to a carrier medium (usuallywater). This special technique achie-ves that the energy can be used by aheat pump.

A heat pump works like a refrigeratorjust the other way round and usingthe energy of wastewater instead of acooling room to generate heat ener-gy with a temperature of 35 to 55 °Cfor the heating systems of houses. Inthis way up to 80% of the availableenergy originate from municipal was-tewater. Such heat recovery savesmoney and protects the environ-ment, both substantial argumentswhen it comes to the question of howto achieve climate policy goals.

Another advantage is that the heatexchanger elements do not needextra space as they are installed

Continued from page 1: Recovery of heat from wastewater: HUBER TubeWin Heat Exchanger

HUBER TubeWin Heat Exchanger

a HUBER TubeWin HeatExchanger installed in thesewer

b Heat pump

Ua

inside the sewer. The cooling waterpipes up to the heat pump are instal-led underground and supply thepump with the required energy. Anot-her advantage is that several HUBERTubeWin units can be installed inparallel or in series. The system can-not only be adapted to sewer shapesbut also to specific wastewater para-meters. As all lines are inside themodules, sewer cross sectionsremain virtually unaffected. Due totheir flat and compact design theheat exchanger modules can beinstalled in sewers as small as DN1000. They get fully immersed evenwith small flows.

The optimised flow inside the modu-les ensures that the flow covers theentire surface and minimises pressu-re losses. The cooling water flow isideally adapted to the heat transferunit to ensure the constant transferof energy to the heat pump.

All components are made of V4Astainless steel for a long product life.The use of a HUBER TubeWin HeatExchanger represents a sustainableand reliable solution of heat recoveryfrom wastewater. Also this systemcan of course be used all year round,for heating and cooling. This is anaspect which significantly increasesits economic efficiency additionally.

Leukerbad in Switzerland uses wastewater from thermal spa

Start-up of the first tank mounted HUBER RoWin Heat Exchanger unit

Thermal spa Burgerbad at Leukerbad in summer HUBER RoWin during installation

fact that it is the first project for whichthe tank version of the HUBER RoWinHeat Exchanger has been used. Theheat exchanger modules are notmounted in a stainless steel tank asusual but directly in the concretetank. It is therefore possible to installthe modules underground. In thiscase they are installed in a tankbelow the parking area on the rearside of the spa. In order not to losesome of the parking area, the tankhas load-bearing covers. So, it is outof sight but thanks to its excellentperformance certainly never out ofmind. As the water flows from thebuilding by gravity there is no needfor a pump to feed the heatexchangers, this saves energy andsignificantly improves efficiency.

The optimised interconnection ofboth heat exchangers ensures anoutput of 450 kW from a wastewaterflow of 8 – 9 l/s. As about 300 kW are

added from an external energy sour-ce the heat pump receives 750 kWwith a temperature of about 20 ℃and generates a heat output inexcess of 1 MW which is available tobe used for heating purposes withinthe Burgerbad spa. It is therefore notonly the spa guests who profit fromthe heat from the thermal springs butalso the Burgerbad operators.

A natural energy source, all-year-round availability, heat exchangersinstalled in the outflow from the spa,a high coefficient of performance ofthe heat pump – this list of benefitscould certainly be continued. TheBurgerbad operators realised howprofitable it is to use heat recoveredfrom wastewater. Once this news hasspread beyond the Valais, Burgerbadwill certainly not remain the only spathat optimises its energy balancewith a HUBER RoWin Heat Exchanger.

HUBER TubeWin Heat Exchanger in test operation

Ub

Hot water is required in houses,apartments and public buildings allthe year round. In addition to its usefor heating in winter hot water isrequired for showers, cooking andlaundry washing throughout the who-le year. Even if excessive heat lossesto the environment can be preventedthrough labour-intensive heat insula-tion of exterior facades and triple gla-zing, an enormous amount of energystill escapes through wastewaterlines – energy which has been gene-rated with the use of scarce resour-ces and precious fossil fuels, such asoil or gas.

A new approach must therefore befound: Recycling solutions are requi-red similar to how the waste manage-ment sector has actively protectedthe environment for many years

The small idyllic town Leukerbadis situated at 1,400 m in theSwiss Alps of the canton Valais. Itis a skiing and holiday locationwith a natural thermal spring.The spring water is used in seve-ral therapeutic and recreationspas before it is discharged tothe public sewer system where itarrives with a temperature hig-her than 30 °C. This temperatureis ideal to use a HUBER RoWinHeat Exchanger.

Leukerbad is one of the largest spa &holiday resorts in the Alps with themost beautiful thermal baths in Swit-zerland. Whether for a recreationalweekend or a longer stay, everyonewill enjoy the rejuvenating thermalwater, rich in minerals, from moun-tain springs. Leukerbad offers its visi-tors on 365 days a year a wide rangeof facilities to match every taste.With an impressive 3.9 million litresof 51 °C hot thermal water streaminginto the pools every day Leukerbadhas the most voluminous reserves ofthermal water in the whole of Europe(source: www.leukerbad.ch).

With this description and its breathta-king mountain scenery the idyllic vil-lage of Leukerbad in the Swiss cantonValais attracts thousands of guestsevery year, no matter whether theylike winter sports or prefer hiking. Butit was one sentence that attractedthe attention of Picatech HUBER AG:“… an impressive 3.9 million litres of51 °C hot thermal water …”

Such enormous volumes of waterwith a very high temperature are ide-al for the recovery of heat from was-tewater. Even if it is not municipalwastewater with its typical pollu-tants, the spring water not only coolsdown but contains also grease and oilas well as skin particles from bathingactivities. Due to these pollutantsand the wash water of the filter plantsconventional plate heat exchangerscannot be used. The risk of blockingand clogging of the narrow channelswould be too high, not to talk of the

sediments on the heat exchanger sur-faces and consequential decrease inheat transfer.

HUBER has developed the RoWinHeat Exchanger particularly for suchproblems. Its efficiency and reliabilityhas already been proven impressive-ly in several projects. Nevertheless,we still had to convince the Burger-bad spa operators in Leukerbad. Thespa uses about 20 % of the thermalspring water to offer its guest superbrelaxation in its wide choice of pools.Although the thermal water losessome of its energy in the pools, it lea-ves the spa with a temperature ofmore than 30 ℃. The fact that thistemperature level is sufficient toensure the supply for a modern hea-ting system shows the high energypotential of these thermal springs.

What distinguishes the Burgerbadproject from previous projects is the

Berching

WASTE WATER Solutions

Page 11 Heating & Cooling with Wastewater

Guaranteed heat transfer performance through automatic surface cleaning – a unique design to recover green energy

HUBER RoWin Heat Exchangers are the solution in three projects forwastewater heat recovery in Switzerland

Winterthur

RoWin Heat Exchanger size 8 installed in the second basement of the Wintowerbuilding at Winterthur

Every plant our customers buy contri-butes substantially to achieving CO2reduction goals. Here are someexamples of such projects:

Utilisation of heat from wastewa-ter for the Wintower high-risebuilding at Winterthur

22.000 m² is about the size of threefootball fields but is also the floor spa-ce of the 28 storeys of the Wintowerin Winterthur, Switzerland. It is a realheating technology challenge to coolsuch a building in summer (= additio-nal benefit) and heat it in cold wintermonths. About 600 kW heating ener-gy is needed in winter. The HUBERThermWin® system was installed andsuccessfully put into operation at thebeginning of this year.

An amount of approximately 50 l/swastewater is taken from the sewerand pre-treated in a ROTAMAT® Pum-ping Stations Screen RoK4, size4,700/3. Two submersible pumpsdeliver the water to the two RoWinHeat Exchangers size 8 installed inthe cellar of the Wintower. Heattransfer to the cooling medium takesplace inside the heat exchangers.The medium is heated and suppliesthe heat pump with the necessary

and 58 °C, or how it is cooled byabout 8 °C by the HUBER RoWin HeatExchanger? About 1,200 kW ofenergy (cooling capacity) is availableto heat the production halls andoffices in a wood processing industry.The production plant operates 24hours, its circulation water contains alot of wood fibres and criticalaggregates. Every type of heatexchanger tested before had theproblem that its surface got almostcompletely blinded within a veryshort time. It turned out that only theHUBER RoWin Heat Exchanger withautomatic surface cleaning andsolids removal is able to ensure thereliable utilisation of waste heat.Basic tests over several weeksproved that the exchanger surfacesare perfectly cleaned every day andencrustation is reliably prevented. Insummer, however, the circulationwater sometimes reaches atemperature of up to 58 °C, which is acritical range that can have anegative impact on product quality.

Heat input into the building: 1300 kW

Max. process water flow: 42 l/s

➤ Load case heating:

extraction of heat from thebuilding: 940 kW

Max. heat input into receivingwater: 940 kW

Max. amount of process water: 17l/s

Utilisation of heat fromwastewater in the thermal spaBurgerbad at Leukerbad

Burgerbad is the biggest alpinethermal spa in Europe and uses aHUBER RoWin Heat Exchange tooptimise its energy balance. Read thedetailed article on page 10 to get thefull story.

Other projects for wastewaterheat utilisation in process

➤ Chemical production

➤ Potatoe processing industry

➤ Thermal spa

➤ Muncipal wastewater upstreamand downstream of a WWTP

➤ Sea water

➤ Paper production

➤ Slaughterhouse wastewater

The HUBER ThermWin® system withthe RoWin Heat Exchanger in a tankor as a submerged version for sewersoffers new solutions for the recoveryof heat from wastewater and forcooling media that have beenimpossible previously.

energy. About 600 kW are in this wayprovided for the heating system. Theplant is also used for cooling in sum-mer, extracting up to 600 kW fromthe building.

It is an ideal energy sink not only dueto its far higher heat capacity but alsodue to its temperature of about 20 ℃.All-year-round utilisa-tion and highcoefficients of performance of theheating/cooling machine guaranteehigh saving potentials so that invest-ment costs pay off soon. Planned hasbeen commissioned in April 2011.

Technical data:

➤ 2 RoWin Heat Exchanger units

➤ 1 HUBER Pumping StationsScreen RoK 4

Operating parameters:

➤ Load case heating:

Max. 480 kW extraction of heat from the wastewater

585 kW heat input into thebuilding

➤ Load case cooling:

600 kW extraction of heat fromthe building

Max. 840 kW heat input into thewastewater

➤ Wastewater volume: Max. 50 l/s

Planned Utilisation of heat fromwastewater in a wood processingindustry

Can you imagine how much heatenergy is hidden in a flow of 150 m3/hprocess-internal circulation waterwith a temperature between 50 °C

It is therefore an obvious solution toutilise the HUBER RoWin HeatExchangers in summer to cool thecirculation water. This can beachieved by introducing the coolingwater extracted from the nearby riverto the secondary circuit of the sameheat exchangers (= additionalbenefit). So, the huge waste heatpotential can be used to heatbuildings in winter and guaranteeconstant product quality in summer.Under economic aspects, thereshould be a strong incentive for theuse of this system.

Technical data:

➤ 2 RoWin B Heat Exchanger units(tank design)

Operating parameters:

➤ Load case heating:

Max. heat extraction fromwastewater: 1000 kW

Optimal flexibility with Complete Plants

Effective and sustainable flushing of sewers: HUBER Power Flush®

Flushing gate optimally adjustable to any sewer shape

Flushing gate installed in a rectangular storage sewer

➤ Regular flushing using the dryweather flow

➤ Frameless flushing gate withoutan invert step

➤ Possibility of submerging thegates

➤ Easy retrofitting without anyinterruption of sewer operation

➤ Suitable for any sewer crosssection

➤ No additional or special manholesrequired

➤ Minimum energy demand

The main component of the system isthe flushing gate which is designedand intended even for larger nominaldiameters and can normally be instal-led without the need for structuralalterations, without additional instal-lation openings or special manholes,and without any interruption of seweroperation. This new system withoutan invert step is suitable to be used

for very different sewer shapes andeven complex operation conditionsand hydraulic requirements. Variousdesigns for different sewer profilesand nominal diameters have well pro-ven their suitability in practice.

The fully automatic electrical controlunit used is tailored to specific localrequirements to guarantee maxi-mum system efficiency. Specific ope-rating parameters are defined toget-her with planners and operators andcan be changed any time to optimisethe process without the need to inter-rupt system operation.

The HUBER Power Flush® is a econo-mical and ecological solution whichmaintains the hydraulic capacity ofsewers, reduces the frequency ofoverflow events and thus protectswaters. It also prevents other negati-ve effects, such as high peak loadsarriving at the wastewater treatmentplant and odour annoyance, andminimises energy consumption andcosts.

cleaning storage and retentionsewers of combined sewer systems.Today, sewer flushing is again a well-proven method to clean sewers andstorage structures but available solu-tions and strategies differ considera-bly in terms of technical and econo-mic efficiency.

In Germany, sewers are usually high-pressure cleaned. This method is alsocalled an emergency strategy andconsumes a lot of energy and freshwater. Furthermore, it is carried outunder unhygienic working conditions,lacks the preventive aspect of avoi-ding sedimentation and involves ahigh risk of damaging sewer walls orconnections if applied improperly. Toensure reliable system operation wit-hout sedimentation in the long run,the innovative HUBER Power Flush®has been developed for operators ofsewer systems and sewers with sto-rage capacity and overflow. Thepatented sewer flushing systemallows for complete removal of sedi-ments in sewers and even preventionof potential future sedimentation.The installation of flushing gatesbased on the principle of sewer flush-ing is an effective solution to solvethe sedimentation problem. HUBERflushing gates are designed to gene-rate the required flush water volumeby impounding the water before ope-ning quickly to free the total sewercross section and allow the powerfulflush water wave to remove the sedi-ments due to its high flow velocity.Sediments in the gate area are alsoremoved due to the formation of adownsurge wave. The special featu-res of the HUBER Power Flush® sys-tem:

➤ Sewer flushing independent ofstorm events

over the course of time. There are anumber of reasons for sedimentationon the sewer base: Regular retentioncombined with a slow flow velocityespecially in combined sewer sys-tems leads to sedimentation of mate-rial which may contain also a hugeamount of organic material. The sub-sequent reduced sewer cross sectionimpairs system efficiency. Negativeeffects are the increase of stormwa-ter overflow quantity discharged intothe receiving water courses, highpeak loads arriving at the wastewatertreatment plant and sewer damagecaused by wrong handling of high-pressure cleaners. But the sedimentsneed to be removed to re-establishthe efficiency of sewers. A number ofmeasures are known to solve the pro-blem. These solutions differ techni-cally and in terms of economic effi-ciency. Although even the ancientRomans had used surge flushing toclean their Cloaca Maxima (literally‘greatest sewer’) in Rome, it was onlyat the end of the seventies when thismethod was recovered as the Ger-man standards A 128 of the GermanAssociation for Water, Wastewaterand Waste (DWA) were introduced for

Sediments in sewers are one of themajor problems with the operation ofdewatering systems. Organic andinorganic sediments settle on thesewer bottom during dry weather orflushing of stormwater retentionsewers, with very negative conse-quences. Efficient sewer flushingensures lasting prevention of suchsediments.

Cleaning of sewers and stormwaterretention sewers has been gaining inimportance recently. Sediments onthe sewer base will harden and thematerial layers grow more and more

Marathopolis

Barbados

Filtration & ReUse Page 12

Continued from page 1: The increasing importance of containerised units worldwide

HUBER BioMem® plants in decentralised applications – installation examples

WWTP Barbados

attached special importance to care-ful briefing of the operating staff onsite to ensure the stable plant opera-tion in the long run. The MBR planthas been designed for nitrification asrequested by the customer.

The HUBER BioMem® filtration unit isinstalled in a separate membranechamber downstream of the bio-tank. As industrial plants frequentlyhave to cope with hydraulic peaksand greatly varying inlet concentrati-ons, the aeration tank is fed from abuffer tank which is big enough toensure the flow to the plant is con-stant and continuous throughout theday. Two fixed installed pumps deliverthe activated sludge mix into themembrane chamber from where thesupernatant liquor flows back into theaeration tank by gravity. The returnsludge ratio has been set to 3:1 whichis the usual ratio for MBR plants. Plantoperation has been stable since start-up and other projects are presently inthe execution phase.

Large building development inGreece

The first HUBER BioMem® plant inGreece was installed and put intooperation at Marathopolis in Septem-ber 2010. The plant with 125 m2membrane surface is designed forthe wastewater of 150 employees ofa nearby hotel. The daily flow to theplant is season-dependent and ran-ges from 15 to 30 m3. Different ope-ration concepts are applied to meetthe requirements of varying flowrates from the building development:In times of low loads the plant is ope-rated as a combination of a SBR plantand downstream filtration unit. Withpeak flows the plant is operated as aconventional MBR plant with upstre-am denitrifiation followed by nitrifica-tion and downstream filtration. Theoperating staff of the neighbour hoteltakes care of the MBR plant withVRM® membrane unit including ope-rational checks twice a week.

Washing and cleaning agentindustry in Brazil

Another industrial membrane plantwith HUBER BioMem® modules forwastewater treatment has beeninstalled in a company in Brazil whichproduces washing and cleaningagents. Start-up of this 125 m² plant

a Mounting frame for filtration unitsb Connection for scouring air to clean the membranesc Lifting eyesd Filtration modulee Permeate collection pipef Holders for lateral guide rods

Ua

Uc

Ue

Uf

Ud

Ub

Uc

Uf

Ua

The individual components together make up the filtration unit.

The HUBER BioMem® filtration unit isa static module consisting of ultrafil-tration membrane cassettes in astainless steel casing. The integratedscouring air system for membranesurface cleaning comes with thenecessary connecting fittings. Liftingeyes are provided for easy installati-on on site. Here is a selection of refe-rence installations:

Beverage factory in Barbados

This is an industrial application of aHUBER BioMem® Compact MBR sys-tem with 250 m² total membrane sur-face on the Caribbean island Barba-dos, at a small production site of theworld-famous Coca Cola company.The hourly throughput is 2.5 to 3.5m3/h, depending on production capa-city utilisation. The plant was put intooperation by a HUBER service specia-list at the end of November 2010. We

Brasil

Kroatien

is scheduled for May 2012. The plan-ned hourly throughput, which istaken as a partial flow from producti-on, is 0.65 m3/h. The average organ-ic BOD5 load is approximately 3,000mg/l. The wastewater to be treated ispre-screened with a 0.5 mm ROTA-

MAT® Micro Strainer Ro 9 and the pre-screened wastewater collected in abuffer tank (due to varying inflows).

Pre-screening also protects the mem-branes against coarse material that

may be contained within the waste-water flow. In addition, the pH valueis corrected in the buffer tank. Thewastewater is then pumped into theMBR plant with a DS concentration of8 g/l and finally treated by the HUBERBioMem® filtration unit with ultrafil-tration membranes. The plant opera-tors are happy that they can directlyreuse the treated wastewater forcleaning in the production buildings.Membrane technology is the perfectprocess technology solution for them.

Municipal application in Croatia

The HUBER BioMem® plant is desig-ned for 500 PE and will clarify thewastewater of a small village in Istria,in the north-western part of Croatia -a typical decentralized application.Due to tighter legislation the plantmust both achieve high reductionrates related to nitrogen eliminationand meet increased hygiene stan-dards. Required and guaranteedenergy values must strictly be metand are continuously monitored bylocal authorities.

The HUBER BioMem® system has wellproven its perfect suitability for MBRplant sizes from 100 to 2,500 PE andis used in more and more applicationsworldwide.

Sovetsk

HUBER wastewater treatment solution for about 120,000 people

STP Sovetsk – Largest MBR plant in Russia relies on VRM® technology

Wastewater pumping station, previous installation

Two ROTAMAT® Complete Plants Ro 5270 l/s, one ROTAMAT® Sludge Accep-tance Plant Ro 3.1, one COANDA GritWasher RoSF 4 size 2, and the unbe-lievable number of 24 HUBER VRM®30/640 units with in total 92,160 m²membrane surface, these are the keydata of the new MBR plant in Sovetsk.Since summer 2011 work has beengoing on at full speed on site, with thecooperation of our project partner, toerect this most modern municipalsewage treatment plant ever built inRussia. After its completion in 2013

Building site

the plant with its innovative MBRtechnology will treat the wastewaterof about 120,000 residents (26,000m³/d) in and around Kaliningrad.

Presently Kaliningrad is still unchar-ted territory as far as wastewatertreatment is concerned, there is onlyone pumping station from old Soviettimes. The major part of the waste-

water is discharged to the riverNeman without any prior treatment.To meet the high Russian effluentstandards one of the most innovativesewage treatment plants in Russiawill be built at Kanliningrad in thenext two years. As a system supplierfor the complete mechanical pre-treatment and filtration equipment,

including additional aggregates andelectrical control systems, HUBERhas moved up into the league of sup-pliers for large-scale MBR projects.HUBER has also been commissionedto provide the hydraulic layout of thefiltration chambers. Through active

participation in the overall processwe take on additional responsibilityand provide the customer with addi-tional value in respect of processsafety. We will report in detail aboutthis project after completion andstart-up.

WASTE WATER Solutions

Page 13 Filtration & ReUse

Löwen

With a sales volume of about 400 mil-lion hectolitres Anheuser-BuschInBev based in Löwen, Belgium, is theworldwide leading brewery group.The company is one of the five lar-gest producers of consumer goodswith about 114,000 employees wor-king for them in more than 23 coun-tries, 2,800 of them in Germany. Theirportfolio includes 200 brands in morethan 100 countries, among them arethe global premium brands Beck’s,Stella Artois and Budweiser. With itsproducts Anheuser-Busch InBev isnumber one or two in 19 key marketsworldwide, in more than any otherbrewery group.

Planta Sur in Barrio Porteño de Pom-

The two VRM® 30 / 480 units during installation into the membrane chambers

air and biological treatment andmembrane aerators including equip-ment installation and commissioning.The customer finally placed the orderwith HUBER and Serviur at the begin-ning of August 2011.

The total membrane surface of theHUBER system of 5760 m2 and itsthroughput of 60 m3/h provides for anet flux of 11.45 l/m²/h which cantemporarily be doubled if service orcleaning work needs to be done. Itwas a special request of the customerthat the VRM® 30 / 480 should be ableto filter the total volume flow of 60m3/h even during plant maintenan-ce. Also the permeate pumps havetherefore been designed to ensure 30to 60 m3/h can be covered.

Another special feature of this projectis that it is not possible to feed the

VRM® chamber by gravity due to thelow geodetic altitude and wide dis-tance between the VRM® chamberand biological treatment system. TheVRM® chamber is therefore fed fromthe three bio-tanks by means of thecustomer’s pumps and a distributionsystem. Also the flow from the VRM®chamber to the biological system isreturned by pumps. These pumpshave been supplied by HUBER.

The plant was installation and com-missioned in January and February2012 and soon achieved the requiredeffluent quality. This project showsthat customers rely on our extensiveexperience in the field of brewerywastewater treatment and addsanother outstanding reference instal-lation to our large number of refe-rence projects.

Parameter Inlet concentration Outlet concentration(NOMINAL)

Outlet concentration(ACTUAL)

Reduction(ACTUAL)

COD 3750 mg/l 104 mg/l 35 mg/l > 99.0 %

BOD 1389 mg/l 28 mg/l 5 mg/l > 99.6 %

TSS 200 mg/l 1 mg/l 0 mg > 99.9 %

peya in Buenos Aires is their largestproduction for lemonades, such asPepsi, 7up, Mirinda, Paso de los Torosand waters of different flavours. Atotal production of 25,000 hectolitresis achieved with 10 bottling lines,these are 1.1 million units per day.

Increasing wastewater volumes andhigher environmental standards for-ced InBev Planta Sur in 2011 to thinkabout a new wastewater treatmentsolution. Besides, a part of their pre-mises where their old wastewatertreatment plant is installed has beendeclared a protected nature reserveas it lies very close to a river. Theycould therefore not build larger addi-tional wastewater treatment systemsto handle the high volume ofmeanwhile 1,440 m3/d but had to usemainly existing tanks.

It soon was clear that membranetechnology would be the best availa-ble solution to meet environmentalstandards even on a small footprint.When the biological HUBER systemwas designed with a higher MLSS of12 g/l and planning of the associatedequipment units was completed itturned out that even the previousaeration tank volume of 1,590 m3 issufficient and no substantial extensi-

on work was required.

The MBR solution has not only tech-nological but also marketing advan-tages as InBev Planta Sur as a mem-ber in a support program of the Envi-ronmental Agency of Buenos Airesshow that improved technologies andprocesses are not only a means toachieve more efficient and economi-cal production but can also protectthe environment. We prepared ouroffer in cooperation with our salespartner Serviur and submitted it tothe end customer at the end of April2011. We offered two VRM® 30 / 480units, redundant permeate and recir-culation pumps, blowers for scouring

InBev, Planta Sur – Maximum efficiency on a small footprint

Leading global brewer buys its first HUBER MBR plant

Burghausen

Founded in 1914, the Wacker ChemieAG works at Burghausen is the mostimportant production site of Wacker-Chemie and biggest chemical indus-try location in Bavaria. On more thantwo square kilometres plant groundsabout 10,000 employees manufactu-re some thousand different productsin about 150 production plants. TheBurghausen site is located 110 kmeast of Munich near the Austrian bor-der, in the Bavarian Chemical Trian-gle. Several pump stations extractalmost the total cooling water requi-red from the nearby river Salzach andthe Alz Canal.

The low pressure pump station Über-ackern on the Austrian side was built

Wacker Chemie AG, Burghausen

Cooling water screening – Pump station Überackern, Austria

Fine screen system beforereplacement work

3 HUBER EscaMax® screens, size 7000 / 1752 / 3 mm

in the fifties. It is operated byWACKER Germany and delivers coo-ling water from the river Mühlbach totheir Burghausen site. Previously,three treatment lines were installedthere, each consisting of a coarsescreen (40 mm wire rope typescreen) and fine bar screen (2 mmtravelling chain screen) for watertreatment. As too much silt passedthrough the two screen stages espe-cially in autumn, the coarse screenswere replaced by 15 mm telescopetype unit at the beginning of 2010.

Recently, also the fine screens werereplaced by HUBER perforated platescreens with 3 mm aperture to furt-her improve the situation and achie-

Automated screenings removal

Wacker Chemie AG, Burghausen

ve an increased retention of pollu-tants with the result of reducedcleaning requirements for thedownstream heat exchangers. Due tothe positive experience with HUBERmachines over many years, the cus-tomer relied on us and ordered threeHUBER EscaMax® screens, size 7000/ 1752 / 3 mm.

Since June 2010, these screens havereliably extracted water from theriver Mühlbach. Previously, the scree-

nings separated from the river waterwere discharged to a trough behindthe fine screen and removed manual-ly. This step has been automated withthe installation of two HUBER ROTA-MAT®-Screw Conveyor Ro 8t units forthe removal of max. 3 m³/h scree-nings and their transport over about17 metres.

The treatment of river / surface waterfor process / cooling / drinking waterproduction requires sturdy and reliab-le screens. HUBER screens of theMAX and STEP SCREEN® family havewell proven in similar projects and aresuccessfully applied by renowned

industrial concerns, such as Wacker,BASF, InfraServ, Thyssen Krupp,SASOL, SSAB, RWE, Bayer, etc.

Screens installed:

➤ 3 HUBER EscaMax® screens, size7000 / 1752 / 3 mm

➤ Maximum throutghput per screen:2,200 m³/h

➤ Screenings transport: 2 HUBERROTAMAT®Screw Conveyors Ro 8t

➤ Screenings transport capacity:3 m³/h

Xanadu Island

Berching

Green Building Page 14

Continued from page 1: HUBER are proud to announce the launch of a new range of innovative MBR systems

- The new generation of water recycling systems for buildings

Hotel entrance

Typical hotel installation

“We are very excited about thelaunch of this product range” saysHUBER CEO Georg Huber. “Manycities are already running out ofwater, and this situation will getmuch worse in the coming years. ThesmartMBR range provides a userfriendly and visually attractive soluti-on. These features are important tocity dwellers. It also allows the imple-mentation of water recycling on astep by step basis, which the realityof financial and practical constraintsrequires.”

Technical Details:

The units are of full stainless steelconstruction to ensure they arestrong enough to cope with thebumps of transportation, and a longoperating life. All components andelectrical cabling are pre-installed atour factory. The side mounted ancilla-ries unit is located inside the tank forsafety during transport. Once thesmartMBR is on site, the ancillariesunit is simply removed from insidethe tank, and fixed onto the side ofthe tank with 4 bolts. Services con-nections are quickly and easily madevia twist lock connectors or multi-pinelectrical connectors and unit is rea-dy to go within about 1 hour.

When routine cleaning of the mem-branes is required, this has beenmade as clean and easy as possiblefor the service personnel. The mem-brane unit has been designed so thelifting points and the mounting bra-ckets are all raised up above the acti-vated sludge level. An optional porta-ble gantry crane will also be offeredwith the units to allow lifting out ofthe membrane units for routinecleaning.

The smartMBR range will be formallylaunched at IFAT Entsorga 2012which takes place in Munich duringMay. Examples of smartMBR units decorated with graphics

HUBER MBR solution for 5-star luxury hotel

Wastewater treatment solution for five-star hotel Xanadu Island

The pool area of the Xandada Island resort

The core component of the HUBER VRM® 20/300 dangling over the Aegaen Sea

belongs to the famous Xanadu chainoffering an All Inclusive concept withHigh Class service.

This project has posed new challen-ges to us: The plant had to fit into anexisting building and a narrow timeframe had to be observed. The custo-mer wanted to have the work com-pleted before the start of the summerholiday season in May this year. Tomake sure our proposal would opti-mally meet the customer’s require-ments we had to find out about hisspecific needs, so we travelled to Tur-key still in December and discussedthe project with the customer toget-her with our Turkish sales representa-tive and representatives of the plan-ning office BYOSIS from Ankara.

This early meeting has greatly facili-tated the further execution of theproject because we learned a lot ofuseful facts and could take these intoaccount in our project planning rightfrom the beginning. HUBER suppliedthe first two VRM® 20/300 units inApril 2011, these were immediatelybuilt into the new filtration chamberswhich have been integrated in thebasement of the operational building.Two weeks after the first delivery thenext two VRM® 20/300 plants and twoROTAMAT® Micro Strainer Ro9 E 300/3units for wastewater pre-screeningarrived at the hotel. Also these ultra-filtration plants and screens wereinstalled immediately after delivery.The biological treatment systemincluding the complete pipework was

install and operate, whilst maintai-ning the high build quality and tech-nical standards for which HUBER isknown.

The smartMBR systems come in 6standard sizes, ranging in daily treat-ment capacity from 10m3/day to75m3/day. They can treat conventio-nal wastewater to produce clean,odour free and safe recycled water.This can then be used (subject tolocal regulations) for non-drinkinguses such as irrigation, toilet flush-ing, cooling tower make-up and waterfeatures. Whilst the distinctive cleandesign is already setting a new indus-try standard in visual appearance,this can be further enhanced by theuse of graphics to enable a customerto decorate the units to their require-ments. This allows customers to visu-ally blend the units into the back-ground if they wish, however it equal-ly allows customers to promote theirefforts in sustainable operations orput the clean area on the side of theunit to use by displaying signage orsite maps etc.

HUBER are proud to announce thelaunch of a new range of innovativeMBR systems to provide recycledwater solutions for large buildingswithin the worlds ever growing cities.They are intended for use in hotels,shopping malls, apartment buildingsetc, and so the smartMBR systemshave been carefully designed so theyare attractive looking and simple to

the west coast of Turkey. It is situatedon a private peninsula, amidst beau-tiful gardens and flowered courtyardsand surrounded by the deep bluewater of the Aegean Sea. Thisenchanting and elegant resort

In December 2010 HUBER SE recei-ved the order to supply a MBR plantincluding a preliminary screen for theXanadu Island Resort. The XanaduIsland resort is a prestigious andexclusive five-star all suite hotel at

built at the same time. During thisphase HUBER was in constant con-tact with the planning office and theresponsible representatives of theTurkish hotel owner AGRON Turizm.The close contact made it easy anduncomplicated to get quick decisi-ons.

Plant commissioning took placeimmediately after completed installa-tion. Both installation and commissio-ning were executed by our experi-enced fitters and start-up engineers.They also explained to the hotel staffhow to operate the plant. The plantcould be put into operation in time forthe new holiday season. At first,during the low season, only three ofthe VRM® 20/300 units were opera-ted. Now as the occupancy rate hasincreased all four units are in operati-on and treat 1,200 m³ hotel wastewa-

ter a day. The treated water can beused as high-quality process water.Due to the good cooperation bet-ween HUBER and the plant operatorsthe optimal plant performance hasbeen achieved already during therun-in phase and could be maintai-ned in later routine operation.

Effluent values meet the expectati-ons and requirements of a five-starhotel. The hotel operators use thetreated wastewater to irrigate lawnsand palm groves around the hotel.With its product portfolio HUBER SE isperfectly prepared to meet the requi-rements of tourism industries as wellas the regulations of authorities,especially in areas with very little pre-cipitation but a high water demand orwith a nature that is worth protection.

Eschborn

Beilngries

WASTE WATER Solutions

Page 15 Green Building

Saniresch project

Innovative HUBER MBR system for wastewater treatment

Hotel Fuchsbräu at Beilngries, Germany uses recycled greywater for toilet flushing

The idea of sustainability

Picture 3: Membrane ultrafiltration unit

Picture 1: GIZ headquarters atEschborn

Picture 2: MBR greywater treatmentplant

membrane bioreactor. An ultrafiltrati-on module with 38 nm separationsize is used for filtration in the MBRtank. Via a pump the permeate issucked off through the membraneswith some underpressure (approx. 60mbar) and stored in a tank to be usedas service water. Continuous intro-duction of scouring air below themembrane modules prevents clog-ging of the membrane surface.

The plastic tanks are customizedunits perfectly tailored to meet speci-fic customer requirements, and theyare odour-tight. To ensure as pro-blem-free as possible plant operati-on, for the first time a telecontrol sys-

tem is used in addition to the normalremote data transmission includingfault messages via SMS. Operationstatuses can be read from a remotecentral station and parameters adap-ted accordingly if necessary. Thisreduces potential standstill times andservice requirements to a minimum.

is increasing worldwide, particularlyin arid regions such as the UnitedArab Emirates. With certified buil-dings property owners benefit froman improved image and low operati-on costs in addition to the conse-quent sustainability they achieve.

Additional information about the pro-ject is provided on www.saniresch.deand www.facebook.de/saniresch.

Project Data

Technical Data:

➤ Bio-system volume: maximum0.5 m³

➤ Membrane surface: 3.5 m² ➤ Separation size: 38 nm➤ Membrane material: PESOperating parameters:➤ Flow rate: 350 l/d➤ DS content: 3 - 6 g/l➤ BDS ≤ 0.1 kg COD/(kg DS*d)

The comprehensive renovation of theGIZ headquarters in Eschborn carriedout from 2004 to 2006 included aconcept for the separate collection ofthe different wastewater flows in hou-se no. 1 (GIZ headquarters, pic. 1).Under the SANIRESCH project (SANI-taryRecyclingESCHborn) HUBER sup-plies, among others, the wastewatertreatment plants for the production ofservice water from greywater. Due toits innovative character the project issupported by the Federal Ministry forEducation and Research (BMBF) (fun-ding no. 02WD0952).The wastewaterflows from kitchens, wash handbasins and wash water sinks in theGIZ building (wash water without fae-ces) are collected separately andtreated in a mechanical pre-treat-ment unit and the innovative MBRsystem. 38 washing and wash handbasins and 8 dish washing machinesare connected to the greywater line,with a volume of 350 l greywater tobe treated per day. The followingmodular components are installed(MBR greywater treatment plant, pic.2):

➤ Aerated Intermediate storagetank with preceding screen (3 mmmesh)

➤ Membrane Bioreactor withsubmerged HUBER ultrafiltrationmodule in a plastic tank

➤ Permeate / service water storagetank

➤ Electric measuring and automaticcontrol devices including remotedata transmission (incl. faultindication via SMS) andtelecontrol

The mechanical pre-treatment unit, a3 mm screening element, removescoarse material (hairs for example)prior to the MBR treatment process.The pre-screened wastewater is inter-mediately stored in a tank from whe-re it is pumped batchwise into the

Under the SANIRESCH project, sup-ported by the Federal Ministry forEducation and Research (BMBF), thewastewater treatment solution instal-led at the headquarters of the Ger-man Society for International Coope-ration (GIZ) in Eschborn collects indi-vidual wastewater flows separately.Due to the very high clarification effi-ciency of the innovative HUBER MBRsystem used to treat the greywater,the high-quality effluent can be usedfor irrigation or toilet flushing. TheHUBER MBR system uses membraneultrafiltration membranes with 38 nmseparation size.

All operating data are recorded onthe data logger and can be read viaremote transmission if required. Thisallows for exact operation control andearly identification of trends, anincrease in transmembrane pressurefor example.

First test results have shown a highcleaning efficiency and proven thestable operation of the plant. AverageCOD elimination is presently 95%.The membrane ultrafiltration unitreliably retains solids, bacteria andvirtually all viruses (membrane ultra-filtration unit, pic. 3). The producedpermeate meets the microbiologicalEC quality standards for bathingwaters. Due to its excellent qualitythe permeate can be used for toiletflushing and irrigation. This improvesthe water efficiency of buildings.

If they can prove a sustainable practi-ce in water use, they can obtain envi-ronmental certificates as proof of thevalue added to their buildings. Theinterest of banks, investors and usersof especially water-efficient buildings

The town Beilngries with a populationof about 8,750 is a touristic centre inthe middle of the nature park Alt-mühltal in Bavaria. The historic townhas region-wide water supply andwastewater disposal systems accor-ding to German standards. Drinkingwater of excellent quality is alwaysavailable in this region. The specificwater consumption of private house-holds in the municipality ranges

HUBER greywater recycling plantinstalled in the basement of thehotel, and technical data

around the German average con-sumption, which is a rather low level.Especially tourism industry attachesgreat importance to the idea of sus-tainability with the use of waterbecause they have an economicbenefit from saving water. The inno-vations applied in the tourism branchnot only on the energy sector but alsofor water use can serve as examplesolutions for densely populated are-as.

Greywater recycling with HUBERMCB

The four-star hotel Fuchsbräu inBeilngries with indoor swimmingpool, sauna and seminar house (pic.6) has already won several awards.When they modernised their hotelfrom 2008 to 2010, especially the lis-

ted historical seminar house, theybuilt in the most advanced homeautomation for energy andwater/wastewater. Warm water isdelivered by a solar energy plant andthey use geothermal heat and alsoheat recovered from exhaust air. Inaddition, greywater is recycled inter-nally.

The wastewater from the wash handbasins and showers in the hotelrooms (20 of in total 75) is collectedvia a separate pipeline system. Thecollected greywater is passed to bio-logical treatment followed by mem-brane filtration. The MBR plant instal-led in the basement of the hotel buil-ding consists of several componentswhich have been tailored to meet thehotel’s specific requirements: ➤ Aerated intermediate storage

tank with preceding HUBERscreen (3 mm mesh)

➤ Membrane bioreactor withsubmerged HUBER ultrafiltrationunit (type MCB 3 with 21 m2membrane surface)

➤ Storage tank with automaticdrinking water feeding

➤ Electric measuring andautomatic control devicesincluding fault indication via SMS

The quality of the treated greywatermeets the microbiologicalrequirements of the EC standards forbathing waters RL 76/160/EWG(1975). As the permeate is free ofparticles and odourless it meets thehigh aesthetic quality expected byhotel guests and owners. The qualitystandards for toilet flushing waterand the permeate quality achieved

during the test period in October andNovember 2011 are presented intable 1. Since the beginning of 2011 thetreated greywater is fed into theservice water network and used astoilet flushing water in the hotelrooms. Consequent use of the high-quality service water for hoteloperations sustainably reducesdrinking water consumption.Technical Data:

➤ Aeration tank volume: maximum1.500 l

➤ Filtration unit: 1 x MCB 3 ➤ Membranfläche: 10,5 m²Operating parameters:➤ Flow rate: 750-1.960 l/d➤ Dry substance: 5 g/l➤ BDS ≤ 0.1 kg COD/(kg DS *d)

Four-star hotel Fuchsbräu in Beilngries, Germany (Fuchsbräu 2011)

ParameterBerliner Merkblatt 1)

(limit values ofRL 76/160/EWG) 2)

Service water/MBR effluent(Hotel Fuchsbräu)

BOD < 5 mg/l (-) < 4 mg/l

Oxygen saturation > 50% (80-120%) > 100%

Total coliforms < 100/ml (100) < 1/ml

E-Coli - n.n. below limits ofdetection

Pseudomonas aeruginosa < 1/ml (-) n.n. below limits ofdetection

Quality standards for toilet flushing water and permeate quality (randomsamples taken during the test period October and November 2011, hotelFuchsbräu, Beilngries, Germany) 1) Berliner Merkblatt, 1995 2) Limit values for bathing waters according to RL76/160/EWG

Berching

Mölln

Stainless Steel Equipment / Global Service Page 16

Masthead: HUBER Report WorldwideNews for Customers and Friends of HUBER SE

For contacts: Christian Stark / Christina BraunIndustriepark Erasbach A192334 BerchingPhone +49 /8462 /201-0,Fax +49 /8462 / 201-810info@huber.de, www.huber.de

Design: HUBER Marketing

Publication date: 5/2012

Print: M. W. Bauer, Beilngries

Circulation: 1000

Drinking water in Germany mustmeet the high quality requirementsof the German Drinking Water Ordi-nance which specifies the permissi-ble limits for the substances contai-ned within water. The four waterworks in the supply area of the muni-cipal utility Vereinigte StadtwerkeGmbH supply hygienic high-qualitydrinking water to their customers.The water quality is regularly control-led by an independent laboratory incoordination with the local healthauthorities.

The water comes exclusively fromnatural groundwater resources and istreated to drinking water quality inthe four water works. Oxygenation isapplied to oxidise the iron and man-ganese naturally contained in thesoil. The generated flocks are filtered

Hygienic high-quality drinking water for consumers

Protection of drinking water, our most important resource

Special solutions have been developed due to space constraints

Air line with safety valve

out by gravel filters. Further treat-ment is not necessary. The water isdelivered to the supply network viareservoirs as and when required. Cus-tomers are at any time supplied withthe amount of water they need.About 12 million litres of drinkingwater a day flow through the 756 kilo-metres long network to the con-nected households.

In cooperation with Bielfeldt Metall-bau GmbH in Ahrensburg and HUBERSE, Vereinigte Stadtwerke GmbHhave planned, dimensioned andinstalled a HUBER Air Filter PlantL361. A respiration process resultsfrom the varying water levels in theclear water reservoir for which reser-voir aeration and deaeration is requi-red.

The ambient air contains a number ofparticles and contaminants fromnatural processes, such as erosion ordecomposition of organisms, andfrom human activities, such as agri-culture or industry. Dust and variousorganisms (spores, pollen, fungi,etc.) may enter the drinking waterreservoir via the respiration process.During reservoir operation all theseparticles would settle on the wall, cei-ling and water surface. Due to con-densation of water on the tank wallsthey would be a danger for waterquality. German DVGW standardstherefore demand that the openingsfor tank ventilation must be pro-tected with screens and equipped

with filters [DVGW worksheet W 300,Bonn, June 2005]. To make sure therequired drinking water quality canstill be guaranteed, Vereinigte Stadt-werke GmbH decided to replace theirold technical equipment.

Together with HUBER and BielfeldtMetallbau GmbH a solution has beendeveloped which ensures the reliableremoval of small, unhygienic parti-cles: a filter for suspended matterwith preceding fine dust filter toincrease the life of the filter cell.

To eliminate damage to the structurecaused by high overpressure orunderpressure, the plant has beendesigned for 400 Pa maximum pres-sure difference and a safety valvehas been integrated in the air line.Due to scarce space and to meet thecustomer’s request for an attack-pro-of, lockable, side-hinged louvre, wehave developed a special solutiontogether with the operators.

The air filter plant and air line, inclu-ding the connection plates and lou-vres, have been designed to ensurethat aeration and deaeration is achie-ved with one plant for both reservoirchambers. The customer still has theoption to install a second air filterplant later without the need for muchstructural alteration.

The future-proof investment guaran-tees the supply of hygienic drinkingwater for all consumers also in thefuture.

Ahrensburg

Competent service for optimal plant operation and operating costs

HUBER Global Service

Superior technology systems requireoptimal operation if you want tomake use of all economic advantagesin the long run and to the full extent.HUBER Service provides support inproduct operation with a comprehen-sive package of services to ensurethe customer gets back the expectedreturn on investment: maximum per-formance and plant availability atminimum operating costs.

HUBER Installation and Commis-sioning Service

Rely on our qualified service staff forinstallation and commissioning! Theirexpertise and extensive know-howensures the best start for your newHUBER machine.

HUBER Spare Parts Service

Our service team in Germany is avai-lable with advice and support in theselection of the best original sparesor wear parts for your machine. A lar-ge stock holding guarantees highavailability of essential spare partsfor your HUBER products.

HUBER Repair Service

Prompt and expert repairs minimiseexpensive down time. The highly fle-xibly HUBER service team with theirprofessional competence provideseverything required to allow for per-fect equipment operation, whetheron site or in the HUBER factory.

HUBER Maintenance Service

Preventive maintenance is withoutdoubt more economical than reactivemaintenance. We offer customisedservice packages to ensure maxi-mum performance is achieved interms of operating reliability andcosts.

HUBER Product OptimisationService

Optimally customised machines gua-rantee a constantly high perfor-mance at low operating costs. Theoperating conditions of plants fre-quently change significantly in thecourse of time without being noticed.The analysis of operating hours, cycletimes, consumption of energy and

consumables, degree of wear, etc.,often leads to the result that a signifi-cantly improved plant efficiencycould be achieved through equip-ment optimisation. We provide andguarantee this service with ourHUBER product optimisation service.

HUBER Teleservice

“You cannot see us but we are withyou and your machines.” The instal-lation of a HUBER teleservice systemenables our service specialists to dai-ly check all important operating para-meters and immediately notify thecustomer in case of any deviation.This guarantees maximum safetyand operation efficiency.

HUBER Service for products fromother manufacturers

We offer an extensive and professio-nal service for products from othermanufacturers, comprising spares,repair and equipment optimisation.One contact person for all servicerequests - a clear logistic and econo-mical benefit for our customers!

Global HUBER Consultancy Ser-vice

Our service consultants visit you onsite to provide maximum support,including valuable information aboutoptimal service measures and reliab-le operation at reduced operatingcosts.

HUBER Plant Refurbishing Ser-vice

It may often be more cost effective torefurbish an existing plant than builda new one. Our service specialistsprovide detailed technical analysis onsite including an economy evaluationand offer customised solutions. Theideal implementation of the selectedsolution on site will be guaranteed by

our qualified service technicians.

HUBER Training Service

A well-briefed operating staff is a pre-requisite for ideal and economicalplant operation. Whether you want toimprove the knowledge of your staffor train new employees, we offer tai-lor-made workshops both on site or inour HUBER service centre in Ber-ching.

Service makes the difference

We offer an extensive product-accompanying service for all yourHUBER machines and plants duringtheir product life cycle.

Don’t hesitate to contact us!

Service packages are available tomeet any budget and we provide atailored solution for every individualcustomer to guarantee maximumoperating reliability and minimisedoperation costs in the long run!