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“”,,,,。 :023-68845484··A1-A2-O仇雁翎,赵建夫,李咏梅,顾国维(,200092) :A1-A2-O,。,HRT28.1h,pH7.7～8.0,150～200mg/L,,COD0.22kg/m3·d,0.05kg/m3·d,COD87%98%,COD150mg/L,15mg/L。:,,:X703 :A :1001-2141(2001)06-0016-04StudyonInfluenceFactorstoTreatmentofCokePlantWastewateratAerobicStageinA1-A2-OBiofilmSystemQiuYanling,ZhaoJianfu,LiYongmei,GuGuowei(StateKeyLaboratoryofPollutionControlandResourcesReuse,TongjiUniversity,Shanghai200092)Abstract:AnAnaerobic-Anoxic-Aerobicbiofilmsystemwasusedtotreatcokeplantwastewater.Influencefactorstocarbonizationandnitrificationataerobicstagewerestudied.Resultsindicatedthattheoptimumconditionsfororganicandnitrogenremovalwere:(1)Hydraulicretentiontime(HRT)inaerobicreactorwas28.1h.(2)ThepHvalueinaero-bicreactorrangedfrom7.7to8.0.Theremainingalkalinityineffluentwas150～200mg/L.(3)Alkaliwasaddedfromthemiddlepartoftheaerobictank.(4)TheCODandammonianitrogenloadingratewerelessthan0.22kg/m3·dand0.05kg/m3·d,respectively.Giventheaboveconditions,upto87%ofCODandmorethan98%ofammonianitrogencouldberemoved.TheaverageconcentrationineffluentforCODandammonianitrogenwerelessthan150mg/Land15mg/L,respectively.Keywords:Cokeplantwastewater,Carbonization,Nitrification.:2001—04—02:(1970-),,,,、。 ,,,。,。,COD[1]。,。,、[2-4],。,--,。:,,、、,,。,,NO2--NNO3--N,NOx--N。,,NO2--NNO3-N,NOx--N。,,,。、,COD,。,,,,23 6 200112。--(A1-A2-O),,。 20011018ISO9001.2000(),。:5733-3 :023-679035411 1.1 1. 2. 3.4. 5. 6. 7.1 A1-A2-O 1A1-A2-O。,10cm×115cm,5L;11.5cm×100cm,7L,、、29cm、18.6cm24cm,13L。,,,,。、。1.2 ,、。KH2PO4。,NaHCO3。,。:DO=0mg/L,DO=0.5～1mg/L,DO=5.8～7.2mg/L。,10～28℃,15～25℃。,33h,42h,54h64h,,HRT6.6h,8.4h,10.8h12.8h,HRT9.2h,11.8h,15.1h17.9h,HRT17.2h,21.8h,28.1h33.3h,HRT。NaHCO3,pH。,。,,CODCOD。2 2.1 HRT 1,HRT17.2h33.3h,COD,17.2h38%28.1h92%。,,。HRT,,HRT,。1 HRTCODHRT17.2h21.8h28.1h33.3hCOD(mg/L)949800773754(mg/L)259196175172(%)73767777(mg/L)334246248279(mg/L)2064718.622.5(%)388192922.2 pH2.2.1 pH,pH。,pH8.0～8.4[5],,,pH,pH6.5～7.0[6]。2,HRT=33.3h,pH,,,pH≥7.7,≤15mg/L,。,NO2-N,pH=8.42,NO2-N=44.78mg/L,NO2-N,。,,pH,,8.0。2.2.2 NO-2-N,NO-3-N。,,,1gNO-3-N7.14g(CaCO3),pH,,,,,。NaH-CO3。176 :A1-A2-O2 pH3 3NO-2-N。,≥150mg/L,≤15mg/L,。pH,,NO-2-N,,,,,150～200mg/L。2.3 2,,,COD。,,,。,,。,pH,,,COD;,COD,,NaHCO3,,,,。 :、、、。 : :023-67633685 :400020 :1302.4 COD2.4.1 COD4、5,COD,,COD,0.578kg/m3·d,COD,60%,COD166mg/L。,COD。COD0.706kg/m3·d,11.9%,308mg/L,15mg/L。,,,COD,;,、,,、、[7],COD,,,,,。5,COD0.22kg/m3·d,15mg/L。4,COD150mg/L。2 HRTCOD(mg/L)COD(mg/L)COD(%)(mg/L)(mg/L)(%)17.2h9492597333420638848212752861295528.1h7731757723018.6929491768138422.69433.3h7541727727922.592814112862844.15994 CODCOD5 COD2.4.2 ,NH318 23,。,NH310～150mg/L0.1～1.0mg/L[8]。6,,。(15mg/L),0.05kg/m3·d。6 COD7。,,,、,,COD,。0.05kg/m3·d,COD150mg/L。3 3.1 HRTCOD,。,。HRT28.1h,。3.2 ,,pH7.7～8.0,150～200mg/L。7 COD3.3 ,,。,,。3.4 COD,,COD。COD,COD0.22kg/m3·d0.05kg/m3·d。3.5 ,COD87%,98%,COD150mg/L,15mg/L。 ,,、。:63;:023-67837168;:023—67838042;:401120;:4 1 .、(、).,1992,10(4,5):54～56,56～632 .A1-A2/OA2/O.,1995,21(8):16～353 ..,1991,9(1):31～334 .-.1989,5(2):4～105 ..,19896 B.K.Leeetal.,AutomaticControlforDOandpHintheActivatedSludgeProcessinaCokeWastewaterTreatmentPlant,Wat.Sci.Tech.,1998,37(12):141～1487 AniruddhaBhattacharyyaetal.,OperationalControlofCokePlantWastewaterNitrificationSystem,IronandSteelEngineer,1998,30～338 RichardO.Mines,Jr.etal.,BiologicalTreatmentofaHighStrengthNitrogenousWastewater,J.Environ.Sci.Health,1997,A32(5):1353～1375(7)4.3 ,,。5 1 ,.[M].:,1999,80～902PaulT.Anastas,TracyC.Williamson,etc.Promotinggreenchemi-caltechnologyinitiatives[J].EnvironmentalScience&Technolo-gy,1999,1,116～1193 ,,.[J].,1998,10(2):172～1784 ,.[J].,1998,10(2):185～1935 .,[J].,1995,15(4):232～2356 .[J].,1998,18(1):4～6196 :A1-A2-O