MBR工艺可持续性能量化评价郝晓地

MBＲ100044。《》。MBＲ、、、。MBＲSISI、、。MBＲ。MBＲ。。MBＲX703A1000－4602201607－0014－1051578036“———”2015QuantitativeEvaluationofSustainabilityofMBＲProcessHAOXiao-diLIJiCAODa-qiKeyLaboratoryofUrbanStormwaterSystemandWaterEnvironment＜MinistryofEducation＞andＲandDCentreforSustainableWastewaterTreatmentBeijingUniversityofCivilEngineeringandArchitectureBeijing100044ChinaAbstractSustainabilityisacruxforthefuturedevelopmentofwastewatertreatmenttechnologies．EspeciallyundertheconditionwheretheParisAgreementconcerningclimatechangewassettleddownenergyconsumptionwilldeterminethefuturedevelopmentofsustainabletechnologiestoalargeextent．InthiscasetechnologyofmembranebioreactorMBＲwhichhasbeendebatedextensivelyathomeandabroadhastobequantitativelyevaluatedtoconcludeacomprehensivebenefitontheirmeritsanddemer-itsineconomysocietyandenvironment．BasedonestablishinganevaluationindexmodelSIforthesustainabilityofMBＲprocessescapitalandoperationalcostprocesses’effectandtheirreliabilityandresourcerecoveryandutilizationwereelaboratedandallrelatedparametersandtheirreasonablerangesintheestablishedmodelwereanalyzedandidentified．ThecalculatedresultsofthemodelrevealedthatthesustainabilityofMBＲprocesseswasnotasgoodasconventionalactivatedsludgeprocesses．InotherwordsMBＲisbasicallynotasustainableprocessasthehighenergyconsumptionandoperationalcosthavetotallyshieldtheirmeritsongoodeffluentqualityandsmallfootprint．·41·32720164CHINAWATEＲ＆WASTEWATEＲVol．32No．7Apr．2016KeywordsMBＲprocessconventionalprocesssustainableindexquantitativeevaluationmembranefoulingoperationalenergyconsumption。MBＲ、、1234。MBＲ/、/、/35MBＲ67。MBＲVarsseveld+25%8、。MBＲ、MBＲ。89。MBＲ、。1MBＲSS≤5mg/LCOD、N、PSS。、、。MBＲ10①②、、③。MBＲ1SI1。SI=α·C+β·P+γ·E11Tab．1ParametersandtheirexplanationsinmodelSI1、2CPE、＜1＞1=1、αCαβPβγEγCCI、OCI、、、、、EQIMBＲSSPＲIPMILIMBＲ/ECIMBＲOＲIMBＲ·51·．watergasheat．comMBＲ327α、β、γ2①α+β+γ=1②α≥0．2、β≤0．4、γ≤0．4。C、P、EMBＲ。1MBＲ1。ELI、ECI、OＲI。LI=0．8MBＲ0．80．8ECI=3MBＲ33OＲI=1MBＲ1MBＲ、。C、P、E1。ELIECIE=0．8+3/2=1．9MBＲ1．9。C、PE。12、i/l、m、n。SI=α·∑li=1Cil+β·∑mi=1Pim+γ·∑ni=1Ein2SIC、P、EMBＲ、。SI=1MBＲ、SI＞1MBＲSI＜1MBＲ。SI=1MBＲ“、”8。21。MBRMBR＞1=1＜1SISI=琢·（li=1移Cil）+茁·（mi=1移Pim）+酌·（ni=1移Ein）琢茁酌CPE()()()1=11()MBRCCIOCIEQIPRIPMILIECIORIPCE1Fig．1Flowsheetofmodel’scalculationandevaluation2.1CPPPMBＲNPV11MBＲNPVTMBＲCASC3、4。NPV=∑nt=0OCIt+CCIt1+it3C=TMBＲTCAS4i———6%n———t———·61·327．watergasheat．com2.1.1CCIMBＲ。。MBＲ———。、、A2/O+MBＲ4300、3100、3300/m3MBＲ4100、3067/m3。3500/m32500/m312～14。2.1.2OCI、、、、、。MBＲ515。。MBＲ。MBＲSＲTMBＲ16。MBＲ。MBＲ。4017①Q≤5×104m3/dMBＲ＞1．00/m3MBＲ3．00/m30．80/m3②Q＞5×104m3/dMBＲ＞0．70/m30．50/m318～20。2.1.3C5×104m3/dMBＲ3、4。224∶63015。2NPV3。2MBＲQ=5×104m3/dTab．2InvestmentandpaybackofMBＲandCASprocessesQ=50000m3/d/103/·m－3/·m－3/·m－3/103MBＲ17．51．001．100．100．182512．50．701．100．400．73003MBＲNPVTab．3NPVofMBＲandCASprocesses103MBＲ1－7．00－5．002－9．91－7．081～15－0．98751+6%t－0．10331+6%t16～300．18251+6%t0．731+6%t－9．338．283308280MBＲNPV－9330。MBＲ1/41．5。MBＲ9015MBＲC6。Q=5000～10000m3/d2MBＲC。1.801.601.401.201.000.800.60/(·m-3)0.4001234567891011109876543210ＴＭＢＲ/(104m3·d-1)2MBＲCFig．2TrendsofoperationalcostsandindexCofMBＲandCASprocessesalongwithtreatedcapacities·71·．watergasheat．comMBＲ3272MBＲ。MBＲ10×104m3/dC4。C≥4。2.2P2.2.1EQIMBＲSSCOD、N、PSＲT2122。SSSS≤5mg/L8。MBＲSS。C60H8O23N12P8N13%、P2．4%。MBＲA2/OPAOspoly-PP10%8。MBＲSSMBＲN、P13%10%。MBＲ4523。4MBＲTab．4OperationalconditionsinpartialWWTPswithMBＲprocessesathomeandabroad/104m3·d－1NorthLasVegas11．40．1mgP/LTP0．3mgN/LNH+4－N、2011102mgN/LNH+4－N、2010YellowＲiverGwinnettCo．8．30．3mgP/LTP1mgN/LNH+4－N、2011BallengerFrederickCo．7．63mgN/LTN0．3mgP/LTP、20135．00．5mgN/LNH+4－N、2010CoxCreekAnnArundelCo．4．53mgN/LTN0．3mgP/LTP、2013BroadＲunLoudounCo．4．23mgN/LTN0．1mgP/LTP、2008Henderson3．40．2mgP/LTP0．1mgP/L10mgN/LTN、2012SpokaneCo．3．210mgN/LTN0．05mgP/LTP4—10、2012Ｒedlands2．50．1mgN/LNH+4－N2004TraverseCity3．21mgN/LNH+4－N0．5mgP/LTP、2004GippslandTraralagonVIC1．54mgN/LTN1mgP/LTP、2011Clovis1．060．1mgN/LNH+4－N8mgN/LTN2009MBＲN、P1EQI0．8。2.2.2PＲIMBＲMLSS、3。MLSS8～10g/L5。2425MLSSMLSS8～18g/L4·81·327．watergasheat．com。MBＲ。MBＲ1PＲI1。2.2.3PMIMBＲ。MBＲ、。MBＲ1PMI0．9。2.3E2.3.1LIMBＲ2/3～1/24MBＲ1/3。FI0．6。。。。/ξ5。5/MBＲξTab．5FootprintfactorsξofMBＲprocessesindifferentareas/cities、1．00～1．401．40～1．801．80～2．101．40～1．701．70～2．102．10～2．401．60～2．002．00～2．302．30～2．67①②③ξ。MBＲξ。LI5。LI=ξ·FI5FIMBＲ。/1≤ξ≤1FI。2.3.2ECIMBＲ2627①、28②DO=3～4mg/L。ECIAHP29、LCA29、30。/。31、、、、、、0．67、0．64、0．53、0．45、0．39、0．36、0．29kW·h/m3632。0．14～0．28kW·h/m30．19～0．36kW·h/m30．29kW·h/m3。MBＲ0．8～2．4kW·h/m333MBＲ3435。17MBＲ、ECI2～5。6Tab．6EnergyconsumptionindomesticWWTPs/104m3·d－1/kW·h·m－30．720．2831．20．2182．00．2323．40．395150．280500．150260．1621．40．255·91·．watergasheat．comMBＲ3277MBＲ、Tab．7EnergyconsumptioninsomeWWTPsbeforeandafterapplyingMBＲprocesses/104m3·d－1/kW·h·m－3ECI20．300．702．3330．350．601．7130．210．653．102.3.3OＲIMBＲ36。MBＲSＲT、。MBＲ/、。1OＲI0．9。3MBＲC、E、P2MBＲSI。8。8Tab．8Ｒelatedmodelparametersassociatedwithdifferentareasξ1ECIMBＲ3α0．2β0．4γ“、”0．4ξ2．67ECIMBＲ3α0．4β0．2γ“、”0．428MBＲSI3。MBＲQ≤10×104m3/dSI＞1．8。α=0．2、β=0．4、γ=0．4＞20×104m3/dMBＲSI=1MBＲ8。/SIMBＲSI≤1。MBＲ。5.54.53.52.5SI1.5012345678910（0.2，０.４，０.４）（0.4，０.2，０.４）（0.4，０.４，０.2）（0.２，０.４，０.４）（0.４，０.２，０.