MBR工艺在垃圾焚烧发电厂渗滤液处理中的应用朱卫兵

第20卷第2期2008年6月江　苏　工　业　学　院　学　报JOURNALOFJIANGSUPOLYTECHNICUNIVERSITYVol.20No.2Jun.2008:1673-9620(2008)02-0017-03MBR＊1,1,2(1.(),213022;2.):(MBR)。MBR。,,。CODCr65000mg·L-1,NH3-N1200mg·L-1,ρ(CODCr)≤800mg·L-1、ρ(NH3-N)≤25mg·L-1《》(GB16889-1997)。:;;;:X703　　　　:AApplicationofMBRProcessinTreatmentofLandfillLeachatefromWaste-to-EnergyPlantZHUWei-bing1,LIYue-zhong1,GONGFang-hong2(1.EngineeringDepartment,WehrleEnvironmentalTechnology(Changzhou)Co.,Ltd,Changzhou213022,China;2.JiangsuPolytechnicUniversity)Abstract:ThelandfillleachatefromWaste-to-EnergyPlantcanbeefficientlytreatedbyMembraneBio-reactor(MBR)process.TheMBRplantconsistsoftheequipmentofbiologyandultrafiltration(UF)system,Thebiologicalzoneconsistsofthebioreactors,wheretheorganicmaterialandNH3-Narebiode-gradedinthepresenceofoxygen.Thewastewaterpermeationleavingtheultrafiltrationplantwillbepumpedtothesewer.TheinletconcentrationofleachateisCODCr65000mg·L-1,NH3-N1200mg·L-1;theoutletofUFhasreachedtheStandardforPollutionControlontheLandfillSitehrDomesticWaste(GB16889-1997)third-classandsecond-classstandard(ρ(CODCr)≤800mg·L-1、ρ(NH3-N)≤25mg·L-1)respectively.Keywords:leachate;MembraneBio-reactor(MBR);CODCr;NH3-N　　,、、、[1]。[2],。,,、(RO)MBR[3]。,。RO,,(NH3),pH6～7[4]。＊:2007-09-10:(1971-),,,,。MBR[5],,[6]。MBR:①,,[7];②,[8];③,;④COD、BOD,[9];⑤,。1　1.1　,400m3·d-1。1.2　ρ(CODCr)55000～75000mg·L-1,ρ(BOD5)35000～38000mg·L-1,ρ(NH3-N)1200～1400mg·L-1,pH=6.5～7.5。2　MBR1。。。,。,,。。1　Fig.1　Theflowsheetoftheleachatetreatmentprocess3　,。2,140m3,4500mm×4000mm×9000mm;2,2500m3,25000mm×13000mm×9000mm。2,20m3·h-1,,;2;5,3000Nm3·h-1;1,170m3·h-1;2,10m3·h-1。4　4.1　5%～10%,,。,。pH7～8;3～4mg·L-1();CODCr、pH、、、。、。,,CODCr60%～70%,ρ(NH3-N)25mg·L-1,。4.2　MBRCOD,20,COD,500mg·L-1。MBRCOD99%。22006926COD,COD,70000mg·L-1,MBRCOD,。;、0.02μmCOD,2　CODFig.2　ComparationsheetofinletandoutletCOD·18·江　苏　工　业　学　院　学　报　　　　　　　　　　　　　　　2008年,;(),,COD。4.3　MBRNH3-N20,NH3-N,15mg·L-1。MBRNH3-N99%,。,,,,,,,。(1)(2):2NH+4+2O2※2NO-2+4H++2H2O(1)2NO-2+O2※2NO-3(2)(3):4NO-3+4H++5CH2O※5CO2+2N2+7H2O(3)。32006926,NH3-N99%。3　Fig.3　ComparationsheetofinletandoutletNH3-N5　2500,MBR1500,3.75。1,3():①:5,3000,1.25/t;①:450000kWh,18.75/t;③:、3,1.25/t。321.25·t-1。,1kgCOD,21,COD65000mg·L-1,1kgCOD0.33。1kgCOD()0.65～0.85,,。6　　(1);ρ(CODCr)≤600mg·L-1,ρ(NH3-N)≤15mg·L-1,《》(GB16889-1997),25mg·L-1。(2)MBR。,,。:[1],,.[J].,2006,14(1):46-47.[2].[M].:,2001.[3],.MBR[J].,2006,5:53-54.[4].[M].:,2006.[5]StephensonT,JuddS,JeffersonB,etal.Membranebiore-actersforwastewatertreatment[M].London:IWAPublish-ing,2000.59-111.[6],,,.[J].,2005,29(1):64-65.[7],.[J].,2006,10:14-15.[8]ClcekN.Effectofsolidsretentiontimeontheperformanceandbiolodgicalcharacteristicsofmembranebioreactor[J].WatSciTech,2001,43(11):43-50.[9]AhnWon-Young.Advancedlandfillleacheatetreatmentusinganintegratedmembraneprocess[J].Desalination,2002,149:109-114.·19·朱卫兵等.MBR工艺在垃圾焚烧发电厂渗滤液处理中的应用