UniTank工艺流程氨氮浓度的动态特征董姗燕

:,,1977,,。#。*(No.042312042)。UniTank工艺流程氨氮浓度的动态特征*董姗燕1汪喜生2　王文佳1　许洲2姚重华1#(1.,200237;2.,200942)　　ASM2DUniTank,。。,,。　　UniTankDynamiccharacteristicsofammonia-nitrogenconcentrationinUniTankprocess　DongShanyan1,WangXisheng2,WangWenjia1,XuZhou2,YaoChonghua1.(1.ResourceandEnvironmentalEngineeringSchool,EastChinaUni-versityofScienceandTechnology,Shanghai200237;2.ShanghaiShidongkouUrbanSewageTreatmentandMan-agementCo.Limited,Shanghai200942)Abstract:　Dynamicbehaviorofammonia-nitrogeninaUniTankprocessinShanghaiShidongkouUrbanSewageTreatmentPlantwassimulatedbyusingamathematicmodelbasingonASM2D.Theresultsshowthatammonia-ni-trogenintheUniTankprocessisonanon-steadystate.Variationoftheconcentrationisinfluencedbythescheduleoftheaerationinreactionvesselsandthescheduleofthesewageentrancetothevessels.Strengtheningaerationmayde-creasetheammonia-nitrogenconcentrationandcorrespondinglyincreasethenitrate-nitrogeninthevessels.Keywords:　UniTankprocessAmmonia-nitrogenDynamiccharacteristicsSimulation　　UniTank,(DO)。,UniTank。,UniTank、。UniTank,[1]。,Uni-Tank。1　　3UniTank。16h,4。1,(T1)(T2),(T3),、;T3T2,T1,、。(CSTR),0.3[2]。　　ASM2D[3],3(、、),4(、、、),3(、、β-),2(、)DO。PI5mmol/L,。　　ASM2D,3、6、8、2。ASM2D。、COD,COD。ASM2D,[4]。2　　1UniTank3([S_NH3-N],S731　UniTankDOI:牨牥牨牭牴牳牭牤jcnki牨牥牥牨牫牳牰牭牪牥牥牰牨牥牥牥牬)。1,2(14.50～15.00d)T1、T2T3[S_)NH3-N]。T1,[S_NH3-N]14.50d1.5mg/L3.6mg/L,14.63d1.7mg/L,14.75d1.5mg/L,1。14.75d15.00d,T1[S_NH3-N]。T3[S_NH3-N]T1,0.5,0.51。T2[S_NH3-N]0.4～1.5mg/L,12,T2T1、T3,0.5。1　UniTank[S_NH3-N]　　UniTank,、,。23DO。T1,,,COD,T1DO0,20min,。T1,T1,COD,DO。T1,,DO。30min,T1,,DO;,T1T2,T2DOT1DO,T1(0.3),2　UniTankDOT1DO,10min0。　　12,UniTank[S_NH3-N]、。T1,[S_NH3-N];T1、DO,[S_NH3-N];T1,[S_NH3-N]。　　T1[S_NH3-N],。ASM2D,[S_NH3-N]4,、、、,:　　[d(S_NH3-N)/dt]=[d(S_NH3-N)/dt]+[d(S_NH3-N)/dt]+[d(S_NH3-N)/dt]+[d(S_NH3-N)/dt]　　3T13(、)[S_NH3-N]()。3,1,[S_NH3-N],T1[d(S_NH3-N)/dt],[S_NH3-N],[d(S_NH3-N)/dt]=85;T1,,,T1[d(S_NH3-N)/dt],[S_NH3-N],[d(S_NH3-N)/dt]=-90。[d(S_NH3-N)/dt]-20～20,T1[S_NH3-N],[S_NH3-N][S_NH3-N]。,,。3　UniTankT1[S_NH3-N]3[S_NH3-N]　　,DO[dDO/dt]DOKLa,:　　[dDO/dt]=KLa[DO*-DO](1)732　　28　10　200610:DO*;DO。、DO,[dDO/dt],:[dDO/dt]=KLa`(2):KLa`,T1、T3KLa217～280d-1,T2KLa120～145d-1。　　UniTankT1、T2T3。4(a)T2KLa`T1[S_NH3-N],KLa`480～560;4(b)T1、T3KLa`T1[S_NH3-N],KLa`870～1120。4　(a)T2KLa`T1[S_NH3-N]4　(b)T1、T3KLa`T1[S_NH3-N]　　4(a),T2KLa`,UniTankT1[S_NH3-N],8mg/L。,T2KLa`,T2DO,[S_NH3-N]。T1,T2T1,T2KLa`T1[S_NH3-N]。4(a),15.00(),T1[S_NH3-N],14.75(),T2KLa`T1[S_NH3-N],T2T2T1[S_NH3-N]。　　4(b),,T1,T1[S_NH3-N],4(a)。T1,KLa`,[S_NH3-N],,KLa`。,KLa`,T1[S_NH3-N],[S_NH3-N];,T2T1[S_NH3-N]。　　UniTankT1[S_NH3-N]KLa`([S_NO-3-N],S)。5,T1,[S_NO-3-N]KLa`,,,T1[S_NO-3-N],。,,[S_NO-3-N],KLa`,,,。,T1[S_NO-3-N],T2[S_NO-3-N]T1,T2T1,T1[S_NO-3-N]。5　T1、T3KLa`T1[S_NO-3-N]4　　　UniTank,,T1、T2T3[S_NH3-N]1、1。UniTank[S_NH3-N]。KLa`,T1、T2T3[S_NH3-N],[S_NO-3-N]。[1]　.[M].2.:,2005.[2]　ChachuataB,RochebLN,LatifiaMA.Optimalaerationcon-trolofindustrialalternatingactivatedsludgeplants[J].Bio-chemicalEngineeringJournal,2005,23:277-289.[3]　HenzeM,GujerW,MinoT,etal.ActivatedsludgemodelNO.2DASM2D[J].Wat.Sci.Tech.,1999,39(1):165-182.[4]　,.ASM2D[J].,2005,24(2):129-133.责任编辑:陈泽军　(:2006-07-21)733　UniTank