Oil Water Separator - TotalWEB! Lite water separator study, kuala lumpur... · system. Any water...
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BiOWiSH™ Aqua FOG Benefits • Reduces pump-out requirements • Reduces sludge production and handling • Eliminates odorous emissions • Long shelf life • 100% natural and non-toxic Available Sizes • 100g • 1kg Oil Water Separator Case Study Oil Water Separator Study, Kuala Lumpur, Malaysia Executive Summary BiOWiSH Technologies carried out a 6 week validation at 3 petrol stations in Malaysia to assess the impact of dosing BiOWiSH™ Aqua FOG into oil water separators. The key objectives were to visually observe reductions in hydrocarbons and confirm any improvement in the quality of wastewater. A secondary objective was to assess if BiOWiSH™ could remove blockage within the wastewater drainage system in one of the stations. After 6 weeks, the validation showed significant improvements in water quality. The validation has shown that just by simple batch dosing and spray of separator surface, the hydrocarbons are digested from surfaces and the visual quality of water is immediately improved. Independent testing by the Universiti Teknologi MARA (UiTM) in the first week of the validation program showed the following results: • Reduction in Biological Oxygen Demand (BOD) by up to 97% • Reduction in Chemical Oxygen Demand (COD) by up to 95% • Reduction in Fat, Oil and Grease (FOG) by up to 99% In the subsequent weeks, BiOWiSH™ was able to maintain pollutant levels at initial reductions, which are well below expected levels. Additionally, the secondary objective of unblocking drains in one station was met. After 2 weeks of dosing, the blocked drains were unclogged, resulting in clear flow through of wastewater. The validation program presents a number of key benefits for the station owner/operators: • Reduced pump out costs due to decreased pump out frequency, resulting in substantial savings for the operator. • Drastically improved quality of wastewater, potentially resulting in lower disposal costs due to less concentrated waste disposal. • Reduced maintenance costs due to unclogging of drains, potentially reducing external contractor costs to clear blocked drains in the stations. • Improved cleanliness of the station for customers due to unclogging of drains. Page 1 Biological Help for the Human Race ™
Transcript of Oil Water Separator - TotalWEB! Lite water separator study, kuala lumpur... · system. Any water...
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.
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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)
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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
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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
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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
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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)
Parameter Unit Predose Week1 Week2 Week3 Week4 Week5 Week6
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
Oil Separator was cleaned out before the trial
Site 2
Parameter Unit Predose Week1 Week2 Week3 Week4 Week5 Week6
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
Oil Separator was cleaned out before the trial
Site 3
Parameter Unit Predose Week1 Week2 Week3 Week4 Week5 Week6
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.
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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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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
Site 1 (A) Site 1 (B) Site 2 Site 3
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
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• 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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