Download pdf - Oil Water Separator - TotalWEB! Lite water separator study, kuala lumpur... · system. Any water that is contaminated with fuel is directed to the fuel spill collection system where

BiOWiSH™ Aqua FOG Benefits

• Reducespump-outrequirements

• Reducessludgeproductionandhandling

• Eliminatesodorousemissions

• Longshelflife

• 100%naturalandnon-toxic

Available Sizes

• 100g

• 1kg

Oil Water Separator

Case Study

Oil Water Separator Study, Kuala Lumpur, Malaysia

Executive Summary

BiOWiSHTechnologiescarriedouta6weekvalidationat3petrolstationsinMalaysiatoassesstheimpactofdosingBiOWiSH™ Aqua FOGintooilwaterseparators.

Thekeyobjectivesweretovisuallyobservereductionsinhydrocarbonsandconfirmanyimprovementinthequalityofwastewater.AsecondaryobjectivewastoassessifBiOWiSH™couldremoveblockagewithinthewastewaterdrainagesysteminoneofthestations.

After6weeks,thevalidationshowedsignificantimprovementsinwaterquality.Thevalidationhasshownthatjustbysimplebatchdosingandsprayofseparatorsurface,thehydrocarbonsaredigestedfromsurfacesandthevisualqualityofwaterisimmediatelyimproved.

IndependenttestingbytheUniversitiTeknologiMARA(UiTM)inthefirstweekofthevalidationprogramshowedthefollowingresults:

• ReductioninBiologicalOxygenDemand(BOD)byupto97%

• ReductioninChemicalOxygenDemand(COD)byupto95%

• ReductioninFat,OilandGrease(FOG)byupto99%

Inthesubsequentweeks,BiOWiSH™wasabletomaintainpollutantlevelsatinitialreductions,whicharewellbelowexpectedlevels.

Additionally,thesecondaryobjectiveofunblockingdrainsinonestationwasmet.After2weeksofdosing,theblockeddrainswereunclogged,resultinginclearflowthroughofwastewater.

Thevalidationprogrampresentsanumberofkeybenefitsforthestationowner/operators:

• Reducedpumpoutcostsduetodecreasedpumpoutfrequency,resultinginsubstantialsavingsfortheoperator.

• Drasticallyimprovedqualityofwastewater,potentiallyresultinginlowerdisposalcostsduetolessconcentratedwastedisposal.

• Reducedmaintenancecostsduetouncloggingofdrains,potentiallyreducingexternalcontractorcoststoclearblockeddrainsinthestations.

• Improvedcleanlinessofthestationforcustomersduetouncloggingofdrains.

Page1

Biological Help for the Human Race™


Introduction

A6weekvalidationprogramwascarriedouttoassesstheimpactofdosingBiOWiSH™ Aqua FOGtoreducehydrocarbonsinoilwaterseparatorsat3petrolstations.

Petrolstationowneroperatorshaveidentifiedthatsignificantcostisrequiredtomanageandmaintaintheiroilwaterseparators.ThevalidationaimedtoshowthatwithdosingofBiOWiSH™ Aqua FOG,avisualreductioninhydrocarbonsandpositiveimpactonwaterqualitycouldbeseenwithintheseparators.

Theseseparatorstypicallyreceivesmallamountsofdieselandoilfromlocalisedspillsandwashdown.Tomaintaineffluentwaterqualityandreduceodor,theseoilwaterseparatorsmustbecleanedandemptiedonamonthlybasis.Thehighpollutantloadingsexperiencedcanleadtohighhandlinganddisposalcostspassedonbyexternalcontractors.

Theprimaryobjectiveofthevalidationwastoassessimpactonreductioninhydrocarbonbuildupandassessifmaintenancecostscouldbereduced.Anadditionalobjectiveforoneofthepetrolstationswastounblockitsfuelspilldrainagesystemthathadbeenblockedwithoilsoveryearsofuse.

Toconfirmtheimpactonwaterquality,regularsamplesweretakenandindependenttestingwascarriedoutbyUiTM.

Station locations

ThreepetrolstationswereselectedthatwereconsideredtypicalpetrolstationsinMalaysia.

Eachstationtypicallyhasadiscretefuelspillcollectionsystemthatcollectsanddrainslocaliseddieselspillsintoanoilwaterseparator.Allsmallscalefuelspillsarewasheddownintothefuelspillcollectionsystemascarriedoutbyattendants.

Eachstationhasadiscretestormwatersystemthatisdesignedtocollectstormwaterandstationwashdownandisseparatetothefuelspillcollectionsystem.

Allthreesitesundergoathoroughweeklysitecleanwherethemajorityofcleaningwaterissenttothestormwatersystem.Anywaterthatiscontaminatedwithfuelisdirectedtothefuelspillcollectionsystemwhereitiscollectedintheseparator.Allthreesiteswerenotedtobewellcleanedandownersandoperatorswerediligentintheircleaningandmaintenanceduties.

Maintenanceregimeoftheoilwaterseparatorisasfollows:

• Pitsareopenedforinspectionandanyplasticsorgarbageremoved.

• Theaccumulatedpitoilisthenemptiedandtransportedoffsiteonamonthlybasisbycontractedservices.

Asummaryofthevalidationsitesandkeydetailsareasfollows:

Station Location Total pump stations Diesel pump stationsApprox Size of

separator (m)

Site1(A) KualaLumpur 8 6 1x2.5x0.9

Site1(B) KualaLumpur 8 6 1x2.5x0.9

Site2 KualaLumpur 14 10 1x2.5x0.9

Site3 KualaLumpur 15 6 1x4x0.9

It is important to note that site 1 has two collection systems which have been identified as (A) and (B)


The Solution

BiOWiSH™isarevolutionarybiocatalysttechnologyplatformthatisbasedonamicrobialconsortiathatcanrapidlyoxidisepollutantsinwastewaterapplications.DevelopedusingthecoreBiOWiSH™technology,BiOWiSH™ Aqua FOGisawastewatertreatmentproductthathastheabilitytocompletecomplexfunctionsco-dependentlythusrapidlycarryingthroughhydrocarbonoxidationmuchfasterthanindependentbiologicalorenzymaticremedies.Additionally,themixedmicrobialconsortiaaresignificantlymorerobustinthetreatmentofmultiplesubstrates.DifferingfuelconcentrationsandfueltypecanbetreatedduetotheadaptivenatureofBiOWiSH™ Aqua FOG.

Thetheoryofmicrobialconsortiaisonewellresearchedandshowsstrongapplicationintheremediationofhydrocarbonsinsoilsaswellaswastewater1.BiOWiSH™ Aqua FOGhasdemonstratedoxidationofpollutantsinanumberofwastewaterapplicationsandhydrocarbonremediationfallswellwithinitsabilities.

Additionallytoitsabilitiestobreakdownnon-livingorganicsmuchfasterthanexistingtechnologies,BiOWiSH™ Aqua FOGis100%naturalandissafetohandle,activateanddose.

Results and discussion

Itiscriticaltoreinforcethattheoilwaterseparatorsatsite1andsite2werecleanedpriortothevalidationbeginning.Thiscleaningoperationwascarriedaspartoftheregularongoingmaintenanceprogramandnotattherequirementsofthevalidation.

Visual hydrocarbon reduction

Inallthreesites,BiOWiSH™ Aqua FOGhassignificantlyreducedtheaccumulatedhydrocarbonswithintheoilwaterseparator.Beforeandafterphotostakenofthetrapswereasfollows.

Site1resultswereasfollows:

1 Engineeringmicrobialconsortia:anewfrontierinsyntheticbiology;TrendsinBiotechnologyVol.26No.9:2008:KatieBrenner,LingchongYouand

FrancesH.Arnold

Site 1 (A) results

Before After

Site 1 (B) resultsBefore After


Site2wascleanedoutpriortovalidationcommencement,however,itcanbeseenthatthereisanotablereductioninHydrocarbonsinthebeforeandafterphotos.Thewallswerenotablyfreerfromgreaseandoilandhydrocarbonshadbeenremovedfromwalls.

Additionally,itcanbeseenfromthephotosthatthereisasignificantdifferenceinwaterqualityandagainthecleanlinessofthesystemisvastlyimprovedfromthevalidation.

Site2showedsimilarresults:

Again,thevalidationshowssignificantimprovementinthecleanlinessoftheoilwaterseparator.TheresultsshowthathydrocarbonshavebeenreducedbytheadditionofBiOWiSH™ Aqua FOG.

Theoperatorsatsite2notedthatimmediatelyafterdosingBiOWiSH™thewaterinthereceivingpitwouldbegintobubble.Allthreestationoperatorsconfirmedthattherewasanotablevisualdifferenceinwaterqualityandthatthepitwallsandsurfaceswerecleaner.

Site3alsoshowedsimilarresults:

NotethatthereisasignificantreductioninHydrocarbonbuilduponthewallsandsurfaceofthewater.Site3wasnotcleanedoutpriortocommencementofvalidation.NotethecleanlinessofthepipeintheafterphotowhichisagoodindicationoftheimpactoftheBiOWiSH™ Aqua FOGdosing.

Site 2 results

Before After

Site 3 results

Before After


Notethebubblingwithintheoilwaterseparator,indicatingtheincreasemicrobialactivityimmediatelybreakingdownthehydrocarbonsasaresultofthedosingofBiOWiSH™.

Site 3 site drain blockage

BiOWiSH™wasalsosuccessfulinunblockingtheoilwaterdrainagesystem.Itwasnotedthatafter4daystheflowratewithinthesystembegantoimproveandafter2weeksthedrainsunblockedthemselves.Itwasalsonotedoncethedrainswereunblockedthesolidsflowedintotheoilwaterseparatoranddrainswereunblocked.

Asaresultofthevalidation,theownerofsite3hascommissionedafurthertrialonasectionoffuelstainedpavementtoseeifsprayingBiOWiSH™willimprovethecleanlinessofthissection.

Site 3 drain before and after

Before After

Increased bubbling observed immediately after dosing of BiOWiSH™ Aqua - FOG


Water treatment quality

IndependentanalysisofwaterqualitywithinthepitswascarriedoutbyUiTM.AsamplewastakenimmediatelybeforethefirstdoseofBiOWiSH™ Aqua FOG.

Itisimportanttonotethatthesamplesweretakenwithinthelastcellofeachpitandnotfromanydischargepoint.Takingsamplesfromtheanyactualdischargewouldleadtoevenbettertreatmentoutcomesasthefullutilisationoftheoilsseparatorwouldcomeintoeffect.Asummaryoftheresultsfromthewaterqualitytestsisasfollows:

Site 1 (A)

Parameter Unit Predose Week1 Week2 Week3 Week4 Week5 Week6

pH 6.69 7.49 6.58 6.75 6.9 6.01 6.22

BOD5 mg/L 84 29 201 423 448 209 77

COD mg/L 904 55 900 1486 843 1186 358

TSS mg/L 23 32 1218 1484 1092 1910 96

FOG mg/L 1 12 35 509 599 678 46

Oil Separator was cleaned out before the trial

Site 1 (B)


pH 7 6.83 6.7 7.2 6.74 6.2 6.48

BOD5 mg/L 82 26 159 2 95 90 57

COD mg/L 4685 33 1200 35 172 269 189

TSS mg/L 32 32 51 7 80 16 64

FOG mg/L 1 4 14 3 25 26 25


Site 2


pH 6.98 5.43 7 7.23 6.75 6.46 6.65

BOD5 mg/L 154 208 158 46 105 52 38

COD mg/L 3123 633 1050 1189 169 152 124

TSS mg/L 24 52 540 466 56 50 108

FOG mg/L 1 20 28 138 21 3 11


Site 3


pH 7.17 6.9 6.69 6.93 7.4 6.8 7.44

BOD5 mg/L 8403 419 109 85 447 302 19

COD mg/L 22192 767 1125 1709 1262 966 63

TSS mg/L 8382 1668 164 133 3282 1490 24

FOG mg/L 112660 1598 123 45 1843 139 5

Oil Separator was not cleaned out before the trial.

Release of solids from pipe system after week 2.


TheresultsshowanimmediateimpactonthewaterqualityfromdosingofBiOWiSH™.Allpits,regardlessofbeingcleanedornotshowimmediateimprovement.Site3,asexpectedfromnotbeingcleanedpriortovalidation,showsthehighestimmediateimprovement.Alltheotherpitsshownotablereductionswithinthefirstweek.

Reductions within first week

Parameter Site1(A) Site1(B) Site2 Site3

pH

BOD5 65% 68% -35% 95%

COD 94% 99% 80% 97%

TSS -39% 0% -117% 80%

FOG NA NA NA 99%

ThefollowinggraphshighlighttheimpactinwaterqualityduringthevalidationperiodfromtheBiOWiSH™ Aqua FOGdosing.Twosetsofgraphsarepresentedperparametertobettershowtrendingofallstationsaswellashighlightingperformanceofpre-cleanedstations.

TheBODanalysishighlightstherapidreductioninBODinthefirstweekfollowedbyarelativelysteadystate.TheBODofsite3dropsinthefirstweek,whichcouldbeexpectedfortheotherstationsiftheyhadnotbeencleanedpriortovalidationbeginning.

TheCODinallseparatorsdropimmediatelyinthefirstweekfollowedbyacomparablesteadystate.SlightincreaseinCODcanbeexplainedbytheeffectofthehydrocarbonsbeingstrippedoffthewalls,therebyincreasingCOD.Additionally,theCODforsite3hasincreasedduetotheadditionalsolidsthathavepassedthroughfromtheunblockingofthepipesystem.

BOD analysis of Waste water across stations

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COD analysis of Waste water across stations

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TSShasalsobeenrapidlyreducedinsite3.TherehasbeenanincreaseinTSS,however,afterafewweeksthistrendhaslevelledoff.Itisimportanttonotethatthetrendiswellundertheinitialpollutantloadings.

FatOilandGreaselevelshavebeendrasticallyreducedfromoriginalloads,whichisasexpectedbythedosingofBiOWiSH™.Levelscontinuetobenegligiblecomparedtoinitialvaluesobservedinun-cleanedseparators.

Again,itisimportanttonotethatthewatersamplesweretakenfromwithinthepits,notfromanydischargepoint.Thiswouldsignifyworstcaseresultsasanyresultingdischargeshouldhavebettertreatmentfromthewell-designedseparator.

Conclusion

TheBiOWiSHTechnologiesoilwaterseparatorvalidationprogramhasshownsignificantreductioninhydrocarbonsandimprovementsinwaterquality.Thevalidationhasshownthatjustbysimplebatchdosingandsprayofthewalls,thehydrocarbonsaredigestedfromthewallsoftheseparatorandthewaterqualityhasimproved.

Inregardstowaterquality,theindependenttestingbyUiTMshowsignificantreductionsinthefirstweekofBiOWiSH™ Aqua FOGdosing;

• ReductioninBODbyupto97%

• ReductioninCODbyupto95%

• ReductioninFOGbyupto99%

TSS analysis of Waste water across stations

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Inthesubsequentweeks,BiOWiSH™ Aqua FOGwasabletomaintainpollutantlevelsatinitialreductions,whicharewellbelowthatseeninanexistingoilwaterseparator.Itcouldalsobeexpectedtohaveevenbetterresultsifsamplesweretakenfromdischargepointsratherfromwithinpits.Evenwhenasignificantspilleventoccurred,BiOWiSH™wasabletocontrolandreducepollutantloadings.

Additionally,thesecondaryobjectiveofunblockingdrainsatsite3hasbeenmet.After2weeksofdosingthedrainswereunblockedresultinginflowthroughofwastewater.

Thevalidationshowsanumberofkeybenefitsforthestationowner/operatorswhichare:

• Reducedpumpoutcostsduetodecreasedpumpoutfrequency,resultinginsubstantialsavingsfortheoperator.

• Drasticallyimprovedqualityofwastewater,potentiallyresultinginlowerdisposalcostsduetolessconcentratedwastedisposal.

• Reducedmaintenancecostsduetouncloggingofdrains,potentiallyreducingexternalcontractorcoststoclearblockeddrainsinthestations.

• Improvedcleanlinessofthestationforcustomersduetouncloggingofdrains.(Thisresultledtosite3commissioningfurtherworktoremovestubbornfuelstainsontheirdieseltruckfillingarea).

Furtherworkshouldbecarriedouttounderstandhowfarscheduledpumpoutscouldbespacedtoprovidetrueeconomicbenefitforstationowner/operators.Thisshouldbecarriedoutoveranumberofstationsoveralongerperiod.

Detailed Implementation Program

BiOWiSH™ Aqua FOGwasdosedataconstant5,000ppm.Theactivatedmixwaspreparedandbatchedbyvolumeasfollows:

DateLitres of Activated BiOWiSH™ Solution at 5,000ppm


21/12 - - - 60

22/12 20 20 20 -

28/12 40 40 40 40

31/12 20 20 20 20

6/1 40 40 20 40

8/1 40 40 20 40

14/1 40 40 20 40

18/1 40 40 20 40

21/1 40 40 20 40/20(sprayed)

Notes

• Dosedateswerescheduledtobebi-weekly.Adosewascarriedoutaftersitewaswashedduringregularweeklycleantoimmediatelytreatoilwhenitenterstheoil-waterseparator.

• Dosewasappliedbyabatchdischargeconsistingof75%ofmixintothefirstcelloftheseparatorand25%thensprayedontothewallsandsurfacesoftheseparator.(unlessstatedotherwise)

• Forsite3,halfofthedosewasappliedtothefloordrainsandhalfwasappliedtooilwaterseparator.Thisistomeetsite3’sobjectiveofunblockingitsfuelspilldrainagesystem.

BiOWiSH™ Aqua FOG Dosing

BiOWiSH™ Aqua FOGisdeliveredasanactivemicrobialandrequiresactivation.Inaccordancewiththeproductinstructions,themixwasactivatedanddosedasfollows:

• BiOWiSH™wasdosedintofreshwateratarateof5000ppm

• BiOWiSH™mixwasallowedtoaerateandactivateover12hours


• Activationwaseasilycarriedoffsitetoensuretheleastamountofdisruptiontostationoperations.

• Dosingwascarriedoutbyopeninguptheoilwaterseparatoranddosingtheactivatedmix.Thisoperationtooknomorethan15minutes.

Operations to oil water separator during the study

Twoofthestationscleanedouttheirseparatorspriortothevalidation.Site1andsite2bothemptiedandthoroughlycleanedtheirseparatorspriortostartofanydosing.

Duringthevalidation,operatorsdidnotcarryoutanymaintenanceonthepitsotherthaninspectionandremovalofgarbagecaughtinsystem.Itisimportanttonotethattheseparatorswerenotpumpedoutduringthisperiod.

Data recorded during validation

Followingarethekeyobservationsanddatarecordedateachsiteduringthevalidation:

Visual Observations

Parameter Method

Visualobservationsofhydrocarbons

onsurfaceofwaterPhotostobetakenforbeforeandafter

Hydrocarbonsonwallsoftanks Photostobetakenforbeforeandafter

Water treatment parameters

Parameter Frequency

pH Weekly

COD Weekly

BOD Weekly

TSS Weekly

FOG Weekly

Contacts

BiOWiSH Technologies

Email:[email protected]

CSWT25MY11INT

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