Anti – Odour & Anti – Odour & VOCsVOCs

Environmental Protection Environmental Protection withwith

The Bio-Trickling Filter The Bio-Trickling Filter TechnologyTechnology

Daega Powder Systems Daega Powder Systems CO., LTD.CO., LTD.http://

www.daega.co.kr

2003. 10. CHEON-AN2003. 10. CHEON-AN

OrganisationOrganisation Customer Customer

KT & GKT & G

SupplierSupplier

Korean CompaniesKorean Companies

DoosanDoosan

Daega Pulverizing Daega Pulverizing MachineryMachinery

German PartnersGerman Partners

EDT AGEDT AG

ARNDT CPSARNDT CPS IIANRDT

Biotrickling TechnologyBiotrickling Technology Developped since Developped since

1991to combine the 1991to combine the advantages of biofilter advantages of biofilter and bioscrubberand bioscrubber Using an inert carrier Using an inert carrier Low energy consumptionLow energy consumption Less maintenance costsLess maintenance costs Control of biomass and Control of biomass and

biological layerbiological layer Special nutrients for Special nutrients for

odour and vov odour and vov eliminationelimination

Control of mass transferControl of mass transfer

Applications of Biotrickling Applications of Biotrickling TechnologyTechnology

Odour RemovalOdour Removal Tobacco industryTobacco industry SlaughterhouseSlaughterhouse Waste water Waste water

treatmenttreatment Composting plantComposting plant Chocolate Chocolate

productionproduction

VOC RemovalVOC Removal Printing industryPrinting industry Cosmetic industryCosmetic industry Coating industryCoating industry Chemical industryChemical industry Semiconducting Semiconducting

industryindustry

Processes and KineticsProcesses and Kinetics

Influences on Influences on kinetics and kinetics and efficiencyefficiency Mass transferMass transfer Residence timeResidence time Soluability in waterSoluability in water TemperatureTemperature Biological Biological

degradationdegradation Type of Type of

microorganismmicroorganism

Pictures of Pictures of microrganismsmicrorganisms

Influence of MediaInfluence of Media Important characters Important characters

of Biotrickling mediaof Biotrickling media Surface areaSurface area Water storage capacityWater storage capacity Pore sizePore size Pressure dropPressure drop Stability/physical dataStability/physical data Endless lifetimeEndless lifetime Chemical and Chemical and

biological resistancebiological resistance

Temperature InfluenceTemperature Influence

Temperature has an Temperature has an important influence important influence on the elimination on the elimination raterate best efficiency best efficiency

between 28 ˚C and between 28 ˚C and 35 ˚C35 ˚C

Mesophilic bacteriasMesophilic bacterias Slow reaction/low Slow reaction/low

influence on influence on temperature changes temperature changes over a short timeover a short time

Influence of HumidityInfluence of Humidity

Humidity has an Humidity has an important important influence on the influence on the efficiencyefficiency Clogging can Clogging can

appear by appear by uncontrolled uncontrolled humidity humidity

Kinetics can be Kinetics can be influenced by influenced by humidity humidity

Influence of NutrientsInfluence of Nutrients

Special Nutrients for Special Nutrients for different different applicationsapplications

C:N:P:S ratio C:N:P:S ratio importantimportant

Influence of Influence of ammonia elimination ammonia elimination and growth of and growth of biomassbiomass

Control mechanism Control mechanism to avoid clogging to avoid clogging

Influence of Variations in Influence of Variations in ConcentrationConcentration

Concentration Concentration influences the influences the kinetics of the kinetics of the reactionreaction

Limitation in Limitation in elimination possibleelimination possible

Most applications Most applications are working with a are working with a kinetics of 0 or 1 kinetics of 0 or 1 orderorder

Reemtsma Flow DiagramReemtsma Flow Diagram

Flow Diagram - KT&G Flow Diagram - KT&G ProjectProject

Main EquipmentMain Equipment

ScrubberScrubber High efficiency in High efficiency in

dust separationdust separation Inert MediaInert Media

Polyurethane foam Polyurethane foam with high surface with high surface area and physical, area and physical, and chemical stabilityand chemical stability

Biotrickling reactor Biotrickling reactor Anti corrosive Anti corrosive

materialmaterial

Measuring and Measuring and control systemcontrol system Automatically Automatically

controlledcontrolled Cooling equipmentCooling equipment

Guarantee a Guarantee a temperature lower temperature lower 45 ˚C45 ˚C

Nutrient StationNutrient Station pH controlledpH controlled

MaterialsMaterials

ReactorReactor Stainless steelStainless steel Coated steelCoated steel Plastic fibre gridPlastic fibre grid

Inert CarrierInert Carrier Polyurethane FoamPolyurethane Foam

ScrubberScrubber Plastic fibrePlastic fibre PolyethylenePolyethylene

Dosage tanksDosage tanks PolypropylenePolypropylene PolyethylenePolyethylene

DuctworkDuctwork Stainless steelStainless steel PolyethylenePolyethylene PolypropylenePolypropylene PVCPVC PTFE hosesPTFE hoses

Dust SeparationDust Separation

Due to the character of the filter Due to the character of the filter media it is important to avoid dust on media it is important to avoid dust on the surface of the polyurethane foamthe surface of the polyurethane foam

Character of the scrubberCharacter of the scrubber High efficiencyHigh efficiency Tangential feed constructionTangential feed construction Controllable quantity of waterControllable quantity of water Capable of temperature reductionCapable of temperature reduction High water separationHigh water separation

Waste WaterWaste Water

Low COD/BODLow COD/BOD In Germany acceptable for our GovernmentIn Germany acceptable for our Government

pH- controlled in a range of 5,5 to 7,5pH- controlled in a range of 5,5 to 7,5 Less particles and slurryLess particles and slurry

In Germany also acceptableIn Germany also acceptable Low discharge quantityLow discharge quantity Advantage of biological cycle of nutrient Advantage of biological cycle of nutrient

Installation Phases of a Installation Phases of a Biotrickling Plant –Biotrickling Plant –

Deinstallation of Biofilter Deinstallation of Biofilter

Installation Phases of a Installation Phases of a Biotrickling Plant – Biotrickling Plant –

Installation of ReactorsInstallation of Reactors

Installation Phases of a Installation Phases of a Biotrickling Plant – Biotrickling Plant –

Filling with Media layer 2Filling with Media layer 2

Installation Phases of a Installation Phases of a Biotrickling Plant – Biotrickling Plant –

Installation of sprinkling system/ Installation of sprinkling system/

AirinletAirinlet

Installation Phases of a Installation Phases of a Biotrickling Plant – Biotrickling Plant –

Installation of sprinkling system/ Installation of sprinkling system/

AirinletAirinlet

Installation Phases of a Installation Phases of a Biotrickling Plant – Biotrickling Plant – Separation of special Separation of special particles/Cooling unitparticles/Cooling unit

Installation Phases of a Installation Phases of a Biotrickling Plant – Biotrickling Plant –

Water and nutrient stationWater and nutrient station

Installation Phases of a Installation Phases of a Biotrickling Plant – Biotrickling Plant –

Connecting DuctworkConnecting Ductwork

Installation Phases of a Installation Phases of a Biotrickling Plant –Biotrickling Plant –

Final SituationFinal Situation

Investment CostsInvestment CostsComparison of different Comparison of different

TechnologiesTechnologies based on German Prices 2002based on German Prices 2002

Maintenance CostMaintenance CostComparison of different Comparison of different

technologiestechnologies