AOMBR工艺不同污泥停留时间下脱氮效能的分析高秀红

3911Vol．39No．11201111JOURNALOFNORTHEASTFORESTRYUNIVERSITYNov．20111200544、JC200909。198012。。[e-mail]。2011410。。A/O－MBR1150040/A/O－MBRtsr10、30、60d。A/O－MBRtsrNH+4－N95．4%NH+4－N98．0%NH+4－N15mg/L1mg/LNO－2－Ntsrtsr10d＞tsr30d＞tsr60dNO－3－Ntsr10d60dtsr10、30、60d66．2%、57．2%67．7%20mg/L。A/O－MBRtsr10、60dtsr。tsr60d。X505NitrogenRemovalinanAnoxic/Oxic-MembraneBioreactoratDifferentSludgeResidenceTime/GaoXiuhongGaoDawenCollegeofForestryNortheastForestryUniversityHarbin150040P．R．China//JournalofNortheastForestryUniversity．－20113911．－97～101AstudywasconductedtoinvestigatetheremovalefficiencyofnitrogeninanAnoxic/Oxic-MembraneBioreactorA/O-MBRatdifferentsludgeresidencetime103060daysusingsyntheticwastewater．Resultshowedthatsludgeresi-dencetimeSRThadnoobviousinfluencesontheremovalofchemicaloxygendemandandNH+4－N．Theaveragere-movalratesofchemicaloxygendemandandNH+4－Nwere95．4%and98．0%andtheconcentrationsofchemicaloxy-gendemandandNH+4－Nintheeffluentwereunder15mg/Land1mg/Lrespectively．ThereweresignificantlydifferentaccumulationsofNO－2－NintheanaerobicreactorandtheconcentrationreducedwiththeextendedSRT．Theaccumula-tionofNO－2－NatSRTof10-daywasthehighestfollowedbySRTof30-dayand60-day．TheNO－3－NconcentrationofthesupernatantliquorintheaerobicbankwasloweratSRTof10-dayand60-daywhichwouldbeinfavoroftheremovaloftotalnitrogen．Theaverageremovalratesoftotalnitrogenwere66．2%57．2%and67．7%forSRTof10-day30-dayand60-dayrespectively．Thetotalnitrogenconcentrationsintheeffluentwereunder20mg/L．ResultssuggestedthatthepollutantremovalefficiencyinwastewaterwashigheratSRTof10-dayand60-daybutlongerSRTcouldreducethepro-ductionanddischargeofexcessactivatedsludge．Fromaneconomicpointofview60disanappropriateSRT．KeywordsNO－2－NaccumulationDenitrificationSludgeresidencetimeMBR1、2、、、。《》MBRs、、N、P3。4、thr5、tsr6、7、8MBR。MBRtsrtsr9。A/O－MBRtsrNO－2－NMBR。11．1/A/O－MBR。18L。。PE0．4μm0．11m2。、12min/3min。35kPa2．5thr8h20～25℃2～4mg/L0．1mg/L。11．2．3．4．5．6．7．8．9．。1．2270～320mg/LNH+4－N35．4～50．8mg/LpH7．13～7．89280～340mg/L。1。4000mg/L。tsr10、30、60d。1/g·L－1/mg·L－1C6H12O60．30ZnSO4·7H2O0．12CH3COONa·4H2O0．13MnCl2·2H2O0．12NH4Cl0．20FeSO4·7H2O1．50NaHCO30．46CoCl6·2H2O0．15KH2CO30．04NH46Mo7O20．18MgSO40．05CuSO4·5H2O0．03CaCl20．011．3、NH+4－N、NO－2－N、NO－3－N、、10。、pH、WTWpH/Oxi340i。22．1A/O－MBR3tsr10、30、60dtsrtsr。273．3～339．7mg/L94．1%、93．5%、93．9%。3tsr97．44±0．03%、95．85±0．04%95．42±0．04%2。MBR15mg/L。tsrA/O－MBR。2tsr/d/d/dNH+4－N/g·m－3·d－1NH+4－N/g·m－3·d－1NH+4－N/g·m－3·d－1/g·m－3·d－1/%NH+4－N/%101494944．11±3．7812．55±4．091．54±2．37302．56±29．297．44±0．0398．13±0．04301005644．35±4．3110．76±4．812．50±2．55307．70±27．2395．85±0．0498．31±0．02601926243．14±6．0312．44±5．761．78±2．88314．81±24．9395．42±0．0498．05±0．03NH+4－N36．2～48．8mg/L。3tsrNH+4－N98．13±0．04%、98．31±0．02%98．05±0．03%2。A/O－MBRtsrNH+4－N1mg/LAGB18918—2002。tsrNH+4－N。2．23tsrNO－2－N2。2tsr10、30、60d。tsr10、30、60dNO－2－N3．51±2．36、1．57±1．82、0．75±0．92mg/L。tsr60dNO－2－N。NO－2－Ntsr。3tsrNO－2－N0．07mg/LNO－2－N。NO－2－N、C/N、、、pH、11－12。C/N7．2～8．0C/N。NO－3－NNO－2－NNO－3－NNO－2－N13NO－2－N。NO－2－Ntsrtsr。tsr10、30、60d1．63、1．89、3．27g/L0．84、0．87、0．79。tsrtsr60d。tsr。pH7．1～7．5pH7．0～8．00．1mg/LpH、。2．3NO－3－N2～4mg/L。tsrNO－3－Ntsr3。3a、b、ctsr30、10、60d。tsr10、30、60dNO－3－N14．62±5．39、17．67±6．26、13．04±5．45mg/Ltsr30dNO－3－N。A/O－MBR。NO－3－NNO－3－NNO－3－N。tsr30dNO－3－Ntsr60d4．03mg/Ltsr10d60dNO－3－N。89392NO－2－N3NO－3－Na、b、ctsr30、10、60d。9911A/O－MBR2．4tsr10、30、60d66．2%、57．2%67．7%20mg/L。A/O－MBRtsr。3、。tsr10、30、60d2．7%、1．2%2．3%61．4%、55．1%63．4%2．0%。3tsrA/O－MBR4。445%。a～bNO－2－N。tsr10、30、60d70．5%、25．1%76．8%。a～b。tsr30d34．7%NO－2－N、NO－3－Ntsr10d60d64．4%、62．2%。tsrT－RFLP14tsr60dtsr10、30d3。tsr10dAquimonasvorai118bpSaprospiraceae483bp、Denitratisoma109bp、Anaeromyxobacter499bptsr30d107bptsr00139tsr10d30dtsr60dUnculturedNi-trospirasp．161bpBacteroidetes164bptsr60dAquimonasvorai118bpBetap-roteobacterium470bp、Aquabacteriumsp．466bp、Myxobacterium215bp。3tsrGammaproteobacterium115bp6．80%、6．53%、1．86%。/15－16。。NO－2－N。3tsr/dDNA/%10118bpAquimonasvorai14．32483bpSaprospiraceae6．98109bpDenitratisoma6．52499bpAnaeromyxobacter13．33115bpGammaproteobacterium6．8030104bp—19．21107bp—26．39164bpBacteroidetes16．84318bpCytophagasp．9．84115bpGammaproteobacterium6．5360118bpAquimonasvorai22．01215bpMyxobacterium10．66466bpAquabacteriumsp．*9．12473bpβ－Betaproteobacterium8．79112bp—8．74115bpGammaproteobacterium1．68*．。3A/O－MBR3tsr10、30、60d97．4%、95．8%95．4%15mg/LNH+4－N98．1%、98．3%98．0%1mg/L。tsr、NH+4－N。tsrNO－2－Ntsr10、30、60dNO－2－N3．51±2．36、1．57±1．82、0．75±0．92mg/L。tsr60dNO－2－N。tsr10、30、60d66．2%、57．2%67．7%20mg/L。。tsr10、60dtsrtsr60d。1．J．2008283416－432．2KimuraKYamatoNYamamuraHetal．Membranefoulinginpilot-scalemembranebioreactorsMBRstreatingmunicipalwastewaterJ．EnvironmentalScienceandTechnology2005396293－6299．3ErsuCBOngSKArslankayaEetal．Comparisonofrecircula-tionconfigurationsforbiologicalnutrientremovalinamembranebioreactorJ．WaterResearch2008426/71651－1663．4．J．200430119－20．5MengFangangYangFenglin．FoulingmechanismsofdeflocculatedsludgenormalsludgeandbulkingsludgeinmembranebioreactorJ．JournalofMembraneScience20073051/248－56．6ZhangJinsongChuanCHZhouJTetal．Effectofsludgereten-tiontimeonmembranebio-foulingintensityinas