MBR中影响同步硝化反硝化的生态因子邹联沛

MBR1,2,1,1(1.,　150090,E-mail:[e-mail];2.,　150000):DO、C/N、pH.,,.DO1mg/L、C/N30、pH7.2COD、NH+4、TN96%、95%92%.:;;DO;C/N;;:X703.1　　:A　:0250-3301(2001)04-05-0051:“”(96-909-01-02-04):(1969～),,.:2000-12-04TheInfluenceofEcologicalFactorsonSimultaneousNitrificationandDenitrificationinMBRZouLianpei1,LiuXudong2,WangBaozhen1,FanYanzhen1(1.SchoolofMunicipal&EnvironmentalEngi-neering,HarbinInstituteofTechnology,Harbin150090,ChinaE-mail:[e-mail];2.HarinBureauofWaterConservancy,Harbin150000,China)Abstract:Theinfluenceofdissolvedoxygen(DO),C/NandpHonsimultaneousnitrificationanddenitrificationinthemembranebioreactorwasstudied.Theexperimentalresultsshowedthatonlyunderconditionthateachecologicalfactorwasmaintainedrelativesteady,simultaneousnitrificationanddenitrificationmightproceedsmoothly.WhenDO,C/NandpHoffeedwaterwas1mg/L,30and7.2,theremovalrateofCOD,NH+4,andTNwere96%,95%and92%respectively.Keywords:membranebioreactor;wastewatertreatment;dissolvedoxygen(DO);C/N;ecologicalfactors;simultane-ousnitrificationanddenitrification　　,、、、、DO、F/M、C/N、pH.DO、C/N、pH.MLSS8000～9000mg/L.DO、C/N、pH.1　1,8,,0.05μm,0.35m,1.5m2.418L,24℃,2,,2,.,5.H.1,23,25.4L.3HRT5h,DO.22420017　　　　　　ENVIRONMENTALSCIENCEVol.22,No.4July,2001DOI:10.13227/j.hjkx.2001.04.012　2.　3.　4.　5.　6.7.　8.　9.1　Fig.1　Experimentalconfiguration2　,、、、、、,COD600mg/L,NH3-N20mg/L,2.47～5.1mg/L.3　DO3.1　DOCODDO6mg/L、3mg/L、1mg/L、0.5mg/LCOD2.2　DOCODFig.2　EffectofDOconcentrationonCODremovalefficiency　　2,DO6mg/L,COD98%,DO3mg/LCOD96.5%.DO3mg/L,COD,COD(COD)COD.DO1mg/L,COD,COD,,COD96%.DO0.5mg/L,CODCOD,COD90%,.3.2　DO3,DO3mg/L,1mg/L,98%～99%.DO1mg/L,,2mg/L,,95%.DO0.5mg/L,.40%～50%.3　DOFig.3　EffectofDOconcentrationonNH3-Nremovalefficiency3.3　DO(TN)4DOTN,DO6mg/L,TN60%,DO,DO,,NH+4,TNTN.,,DO,,.DO3mg/L,TN,,TN7mg/L,75%.DO1mg/L,TN,TN3mg/L52　　　　　　22,TN92%.DO0.5mg/L,DO,,NH+4,TN.4　DOTNFig.4　EffectofDOconcentrationonTNremovalefficiency3.4　DO1mg/LC/N　　1,C/N,NH+4,NH+4CODC/N,NH+4,,NH+4.TN2,NH+4;COD.,C/N(5),NH+4,C/N30.,,.C/N,C/N.1　DO1mg/LC/N/mg·L-1Table1　EffectofratioofCandNonsimultaneousnitrificationanddenitrificationinMBRwith1mg/LofDOCOD/NCODTN/%/%/%31.54661.3421.496.7620.970100220.995.9120.59403.616.495.9619.650.0399.8518.72.188.779.69412.319.9495.1642.85.568739.5611.271.695198.5414.692.6543.215.9363.1342.533.7320.643.5　DO1mg/LpH2,pH4.76～9.7COD,NH+4TN.pH4.8NH+460%,TN45%;pH7.2NH+499%,TN90%;pH9.6NH+475%,TN59%.pH5,,pH5,,pH5,pH6.3,pH9.6,pH8.9,pH.,pH.2　DO1mg/LpH/mg·L-1Table2　EffectofpHvalueonsimultaneousnitrificationanddenitrificationinMBRwith1mg/LofDOpHCODNH+4TN/%/%/%4.8639.958.6190.8421.535.3875.0119.278.8354.184.76628.623.596.2620.6711.7543.1521.113.436.497.162412.5497.9922.62010023.212.3989.77.363115.697.5321.80.0699.7320.631.9890.49.6621.6446.892.8720.354.9875.5321.29.455.679.7630.250.6491.9722.375.575.4123.068.7861.93534　　　　　　4　,,、、.,,,.5[1],,,,.pH、、DO、F/M、C/N.pH8.0～8.4,pH6.5～7.5,pH7.5..20℃～30℃,20℃～40℃.15℃,,,.24℃.DO1mg/L,,,DO1～1.5mg/L,,DO0.5～0.7mg/L,.DO0.5mg/L,,[2].,DO,,5　DOFig.5PatternofDOandsubtrateconcentrationinsludge.,,.,.,,,,,,.,3,①,F/M,DO,,;②DO,DO,,,,DO,,,.,DO1mg/L,COD,,,;③-.Laanbroek[3],DO.0.2～0.4mg/L,1.2～1.5mg/L.,DO1mg/L,NO-2,NO-2,,DO,,NO-2.-,NO-2NO-3,.NO-2+0.67CH3OH+0.53H2CO30.04C5H7NO2+0.48N2+1.23H2O+HCO-3(1)NO-3+1.08CH3OH+0.24H2CO354　　　　　　220.056C5H7NO2+0.47N2+1.68H2O+HCO-3(2)(1)(2),1gNO-21gNO-3N2,1.53g2.47g[4].MBR,,、,,.,,,,.DO,,DO,.,,,,.,、、、,.pH,1g7.14g(CaCO3),1gNO-33.5g,-NO-2,.,,.“”,,NO-2,,NO-2NO-3..5　(1),MLSS8000～9000mg/L,24℃,COD、NH+4523～700mg/L17.24～24mg/L,DO6mg/L、3mg/L、1mg/L、0.5mg/L,COD、NH+4、TN98%、99%、60%;96.5%、98%、75%;96%、95%、92%;90%、70%、60%.,DO1mg/L,DO,MBRCOD、NH+4,TN.(2)MBRDO1mg/L、C/N20～30COD、NH+4、TN;C/N10COD,NH+4、TN;C/N5COD,NH+4、TN.,,,.C/N30,C/N,C/N.(3)pH4.76～9.7COD、NH+4、TN,pHMBR.(4)C/N30、pH7.2、24℃、DO1mg/L,COD、NH+4、TN,,.:1　,.[J].,1998,24(12):6～9.2　.[M],.,1996.276～279.3　LaanbroekHJ,GerardsS.CompetitionforlimitingamountsofoxygenbetweenNitrosomanaseuropaeaandNitrobacteriawinogradskyigrowninmixedcontinuouscultures[J].ArchMicrobiology,1993,159:453～459.4　,.[M].:,1998.51.554