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UASB--20080101IUASB--UASB-BTF-UASB(361)OLRHRTUASBHRTOLRHRT1.2OLR16.5kgCOD/(m3d)COD90%HRT0.6OLR33.4kgCOD/(m3d)COD83%UASB7.4L/(Ld)OLRHRT13.7kgCOD/(m3d)1.2COD94%COD940mg/L5.29L/(Ld)TP75.3%BTF(201)CODBTFCOD2700mg/LCODNH4+-NTP69%85%68.5%CODNH4+-NTP800mg/L133mg/L3.3mg/LTPII85.6%TP1.9mg/LPAC5g/L0.25g/LPACCOD390mg/L250mg/L1.78/UASB-BTF-UASBIIIRESEARCHONTREATMENTOFLEACHATEFROMMSWINCINERATIONPLANTBYUASB-BIOTRICKLINGFILTER-COAGULATION-FLOCCULATIONABSTRACTOneofthemostimportantmeasuresforMunicipalSolidWaste(MSW)disposalisincinerationandpowergenerationwhichshowsthegreatadvantageinharmlessness,resource,andreductionofMSW.However,leachatefromMSWwhichisacomplexwastewatercontaininghighconcentrationsoforganicandnitrogenresultinpotentialsecondlypollution.Presently,leachatefromMSWisseldomresearched.Inordertoeffectivelycontrolthiskindofnewpollution,leachatefromYuqiaoMunicipalSolidWasteIncineration(MSWI)wastreatmentbyUASB-BiotricklingFilter(BTF)-Coagulation-flocculation,andpollutionremovalefficiency,processpromotion,andeconomicbenefitwerestudied,whichprovidereferenceforleachateinenergy-savingandhighefficiencyway.Organicloadingrates(OLR)andhydraulicretentiontime(HRt)haveanobviouseffectontreatmentbyUASB.TheCODremovalefficienciesareabove90%,whenHRThigherthan1.2dorOLRlowerthan16.5kgCOD/(m3d).TheCODremovalefficiencyis83%whenthehighestOLRis33.4kgCOD/(m3d)orHRTis0.6d.Gasproductionratereflecttheresultofthesludgeactivity,buthighergasproductionratetrendstoeffectthestabilizationofsludgeinthereactor,thehighestgasproductionrateis7.4L/(Ld).TheaverageremovalefficiencyofCODandTPisrespectively94%and75.3%,theaveragegasproductionrateis5.29L/(Ld),whentheOLRandHRTisrespectively13.7kgCOD/(m3d)and1.2datthetemperatureof36.NitrifylingbacteriawererestrainedbyhighCODconcentrationinBTFIVreactor.WhentheaverageinfluentCODconcentrationis2700mg/L,theaverageCOD,NH4+-NandTPremovalefficiencyisrespectively69%,85%,and68.5%,theaverageeffluentconcentrationofCOD,NH4+-NandTPisrespectively800mg/L,133mg/Land3.3mg/L.ThehighestTPremovalefficiencyis85.6%,theeffluentconcentrationofTPisonly1.9mg/L.Inthecoagulation-flocculationprocess,thetreatmenteffectionisobviusbetterbyusingcombinationofcoagulants.TheCODconcentrationwasreducedfrom390mg/Lto250mg/L,when5g/Lcementand0.25g/LPACwerefeed.Andthecostofcoagulation-flocculationforpertonofleachateisonly1.78Yuan/t.KEYWORDS:Leachate,UASB,BiotricklingFilter,Coagulation-flocculation20081192008119200811911.1(MunicipalSolidWaste,MSW)1-119931994-20002000199010%1995-19991999[1]37834.2%20051560242.8%15.9%22.3%9.4%9.6%1-11981-2004[2]Fig.1-11981-2004MSWtreatmentsituationinChina2003200584.9%85.2%9.5%4.3%4.9%9.8%2005285%[3]1.245%-65%4200kJ/kg40%-60%10%-25%[1]105-63800-120080%85%[4]1.3(1)CODBODB/C(2)90%(3)(4)NH4+-N4NH4+-NTN70-80%NH4+-N(5)BOD5:N:P=100:5:1(6)0.5-6.5%1-11-1[5]Tab.1-1TypicalindexofleachateinoneMSWIPlantCODcr54932SO42-1726BOD522379Pb2.43SS9098Cr0.73TN2511Cd0.25NH4+-N764Fe170.9NO3--N235.9Zn12.46TP77.22Ni1.92PO43-49.04Cu0.41pH8.01Ag0.85VFA6060As(g/L)16.80Cl-3369Hg(g/L)8.31pHmg/L1.41-251-2[6]Tab.1-2LeachatedischargestandardCODcr1003001000BOD530150600NH4+-N1525SS7020040010-1-10-210-1-10-210-1-10-2mg/L1.4.1DO1.4.1.1(1)CODNH4+-NAhmetUygur[7](SequencingBatchReactor,SBR)(CODNH4+-NPO43-P)3(//)4(///)5(////)SBR5SBRCODNH4+-NPO43-P62%31%619%(PAC1g/L)5SBR(1:1)CODNH4+-NPO43-P75%44%44%PACFikretKargi[8-11]PACPAC(130h)(310h56h)COD74%78%79%PAC(2g/L)COD85%91%91.5%CODCODPAC(PZ)PACCODPZ(2)Loukidou[12]SBR2()(GAC)SBRCODBOD565%90%70%90%NH3-N60%95%GACSBRCODBOD581%90%NH3-N85%80%GAC7Jokela[13](16-32mm)(UF)(10-70mm)(DF)(9.1mm)(SCBP)UF60d90%COD26%-62%DFSCBP90%UF20%COD70%-75%80%90%1.4.1.2(1)UASBKettunenRH[14]UASB11HRT1.5-2COD60-65%24HRT10hCOD75%Kennedy[15]OLRHRT24h18h12h33%66%100%UASBCODOLRUASB71-92%(100%HRT12h)UASB77-91%(100%HRT12h)UASB(2)ASBRTimurH[16-17]ASBRCOD85%9.4gCOD/(Ld)83%COD8Calli[18](UASB)(UAF)(UBF)(2500mg/L)2.9-23.5kgCOD/(m3d)(HRT)2COD(75%-95%)181pH4.5pH8.3330mg/L7.530mg/LCOD85%COD80%UASBUAFUBFUASB1500mg/L(DGGE)(FISH)(3)AFCODUASB[19]35-40COD95%5kgCOD/(m3d)(4)ABR[20]ABRABRABR1.4.1.3-9(1)-Jeong-hoonIm[21]OLRs15.2kg[COD]/(m3d)80%1.1kg[NO3-N]/(m3d)1.04kg[NO3-N]/(m3d)99%HRT4d1.25kg[NH3-N]/(m3d)0.84kg[NH3-N]/(m3d)(2)-Laitinen[22]SBRMembraneBioreactor,MBRSBRSSBOD7NH3-NPO43-P89%94%99.5%82%MBRSSPO43-P99%88%BOD7NH3-N97%,TN50%-60%(3)-A?da?[23]2UASB(CompleteStirringTankReactor,CSTR)OLRs16kg[COD]/(m3d)2UASBHRT1.254.5CSTR(SRT)15OLRsUASBCOD58%79%NH3-N13%-27%UASBCOD40%NH3-N2%-7%CSTRCOD85%-89%CODNH3-N96%-98%99.6%2UASB101.4.2BOD/COD0.07-0.201.4.2.1100001000020-30%[24][25-30]1-15g/LpHCOD50-70%90%SS70-90%[31]COD69.5%TOCCOD1.4.2.2RodriguezJ[32]GAC-40GAC-40200mg/L1hCOD1300mg/L200mg/LpH[33]COD90cm90%111.4.2.3(1)FentonFentonFe2+H2O2OHFentonH2O2H2O2YangDeng[34]FentonpH=3[H2O2]/[Fe2+]=3[H2O2]=240mMCOD61%COD0.75FentonFenton[35]Fenton[36-37]FentonH2O2(2)OHPetersonBM[38]2000L/h116.0mA/cm2180minCODTOC73%57%86%49%EliasTauchert[39]10mA/cm2125W300minCODpH=1.0pH=13.029%1235%98%92%COD39%43%60%62%1.4.3(1)ROROKenichi[40]26.5-MPaRO2CODMn98%91.7%NH3-N2mg/L(2)NF200-500Thomas[41]CODNH3-N95.9%57.6%9