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当前位置:首页 > 商业/管理/HR > 质量控制/管理 > 好氧生化污水处理厂化学品暴露预测模型构建周林军
37120161ENVIRONMENTALSCIENCEVol.37No.1Jan.2016121*112*1.2100422.210009.、/、、、、=283K、=2m·s-1=3.5m3·d-1、BOD5=0.15g·L-1、SS=0.2kg·m-3、SS=0.02kg·m-3、BOD5=90%、dw=1.6kg·L-3、0.18~0.19、、Whitman、、9C-STPOSTP.C-STPO2681%52.5%~6.3%C-STPO、、、.STP.X820.4X824A0250-3301201601-0228-12DOI10.13227/j.hjkx.2016.01.0302015-06-152015-08-278632013AA060A3082013090281986~E-mailzhoulj@nies.org*E-mailljn@nies.orgxuyh@njtech.edu.cnDevelopmentofChemicalExposurePredictionModelforAerobicSewageTreatmentPlantforBiochemicalWastewatersZHOULin-jun12LIUJi-ning1*SHILi-li1FENGJie1XUYan-hua2*1.NanjingInstituteofEnvironmentalSciencesMinistryofEnvironmentalProtectionNanjing210042China2.CollegeofEnvironmentNanjingTechUniversityNanjing210009ChinaAbstractSewagetreatmentplantSTPisakeytransferstationforchemicalsdistributedintodifferentenvironmentcompartmentandhencemodelsofexposurepredictionplayacrucialroleintheenvironmentalriskassessmentandpollutionpreventionofchemicals.AmassbalancemodelnamelyChineseSewagetreatmentplantC-STPOwasdevelopedtopredictthefateandexposureofchemicalsinaconventionalsewagetreatmentplant.Themodelwasexpressedas9mixedboxesbycompartmentofairwatersuspendedsolidsandsettledsolids.Itwasbasedontheminimuminputdatarequiredonthenotificationinnewchemicalssuchasmolecularweightabsorptioncoefficientvaporpressurewatersolubilityreadyorinherentbiodegradability.TheenvironmentconditionsTemperature=283Kwindspeed=2m·s-1andtheclassicSTPscenarioparametersofChinaespeciallythescenarioparametersofwaterqualityandsludgepropertieswereadoptedinC-STPOmodeltoreflectChinesecharacteristicstheseparametersweresewageflowof35000m3·d-1influentBOD5of0.15g·L-1influentSSof0.2kg·m-3effluentSSof0.02kg·m-3BOD5removalinaeratorof90%sludgedensityof1.6kg·L-3andorganiccarboncontentof0.18-0.19.Itadoptedthefugacityexpressformechanismoflinearabsorptionfirst-orderdegradationWhitmantworesistances.Anoverallinterphasetransferconstantwhichwasthesumofsurfacevolatilizationandstrippingwasusedtoassessthevolatilizationinaerator.ThemostimportantanduncertaininputvaluewasthebiodegradationrateconstantanddeterminationofwhichrequiredatierteststrategyfromreadyorinherentbiodegradabilitydatatosimulatetestinSTP.AnextrapolatedcriterionofUSEPAtoderivebiodegradationrateconstantusingtheresultsofreadyandinherentbiodegradabilitywascomparedwiththatofEUandwasrecommended.C-STPOwasvalidtopredicttherelativeemissionofvolatilizationabsorptiondegradationandeffluentongroundofbothsuccessfulsimulationoftheremovalof26chemicalsfromreferenceswithanaccuracyrateof81%andconsistencyofpredictionandtestwithabsolutedifferenceof2.5%-6.3%for5phenols.Incasesofpredictionofthreechemicalswithdifferentproperties112-trichloroethaneNaphthaleneandDEHPthepredictedfatewellsatisfiedthemonitordata.Themodelisthereforebelievedtobeasimplerobustandusefultoolinfatestudyandexposureassessmentofchemicals.Keywordssewagetreatmentplantmodelchemicalexposuredegradation4.6.1、.sewagetreatmentplantSTP1.70%2、STP>0.1μg·L-134.STP5.STP、、.STP.STPSTP1STP、6Urase7、Plósz8、9~12STPSimpleTreat9STPWIN1011.STP、STP.STP1STP、、.36~8STPSimpleTreatSTPWIN912、、STP.STPO90、、、、STPSTP、、STPOSTP.O、、C-STPOSTP.1STPTable1SummaryandAnalysisofExistingSTPmodelsO√√√、6UraseO√×√、7PlószA/O√×√—8CloutierO√××—3StruijsO√√√9MackeyO√√√1011ByrnsO√√√1211.1O、、..92237.1.、、.STP1STP、0.1ij、、ijij.9、15、61..1.-kiciVi+ΣAij×ci+ΣXij×ci=011C-STPOFig.1ConceptionfigureofC-STPOmodelkiis-1ciimol·m-3Viim3Aijm3·s-1Xijm3·s-1.92.Aij、Xij、c02c03、、.21Table2MatrixesoftotalmassbalanceequationA10+X12+X15+X17×c1-X21×c2+X51×c5+X71×c7=0A25+X21+X23×c2-X12×c1+X32×c3=A02×c02A36+A34+X32×c3-X23×c2=A03×c03A40×c4-A34×c3=0A57+X51+X56+k×V5×c5-A25×c2+X15×c1+X65×c6=0A68+X65×c6-A36×c3+A96×c9+X56×c5=0A70+X71+X78×c7-A57×c5++X17×c1+X87×c8=0A80+A89+X87×c8-A68×c6+X78×c7=0A90+A96×c9-A89×c8=01c02STPg·m-3c03STPg·m-31.2STP、STP..STP、.1.2.1STP-KPL·kg-1、-KHks-1.SimpleTreat/Koc/Kow/Sg·L-1、Mkg·mol-1、PPaHPa·m3·mol-1DT50d.“”Koc、、S、M、P、KowM、Koc、P、S、03211516.1.2.217201410.1℃9.6℃0.5℃.1~2m·s-1.T283KWS2m·s-1.2STPFig.2China'swaterqualityofSTPinfluentbydocumentsstudy..STP-17.1.2.3STP1SimpleTreat、、BODSTP.、Qm3·d-1、BOD5.194436STP3.5m3·d-1Q35000m3·d-1.“”GB50014-200620、、HRT2、10、4hhm4、3、3m.Vm3V=Q×HRT/24Aream2Area=V/hSTPArea_STPm28507m2.SSkg·m-3RHOkg·L-3V=V×SS/RHO×10000.1mV=0.1×Area.STPhair10mV1=Area_STP×10=85070m3.2.21308SS200mg·L-12a281BOD5150mg·L-12b.22274SS12mg·L-12c310BOD510mg·L-12d.STPⅢ23STP“”GB18918-200224BBOD5SS20mg·L-1.13237SS20mg·L-1.STP2/313/36BOD23/36BODBOD5FBOD90%25.BODPsludgekg·d-1263.Psludge=Q×BODO×FBOD×Ysludge3Ysludgekg·kg-1BODOBOD5g·L-1FBODBOD5Ysludgekg·kg-1.Mikkelsen27Ysludge4.Ysludge=0.947+0.0739×lnkSLR4kSLRkg·kg-1FBODlnkSLR=0.818-FBOD/0.0422FBOD=0.9kSLR0.14kg·kg-1.、、、10.18%~31%20%1.2~2kg·L-11.6kg·L-1.3.3.3C-STPOSimpleTreat1Table3ParametersofenvironmentalconditionsandscenariousedinC-STPOmodelRSPSOSLSairABABABABABiT/K283288iQ/m3·d-1350002000————————iWS/m·s-1————————23iHRT/h——22106.966——cV/m3—2917167145835758750500850704000ih/m——4433331010cArea/m2——72941.64861191.729171678507400cFarea——0.0860.1040.5710.4790.3430.418——iAR/m3·s-1————0.130.13————iRHO/kg·L-31.61.51.
本文标题:好氧生化污水处理厂化学品暴露预测模型构建周林军
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