低CN比条件下高效生物脱氮策略分析彭永臻

29220092　　　　　　ActaScientiaeCircumstantiaeVol.29,No.2Feb.,2009:(No.50778005);(No.EDBS07/1-53974092);(No.8062006)SupportedbytheNationalNaturalScienceFoundationofChina(No.50778005),theEnvironmentandWaterIndustry(EWI)DevelopmentSchemeofSingapore(No.EDBS07/1-53974092)andtheNaturalScienceFoundationofBeijing,China(No.8062006):(1949—),,(),E-mail:[e-mail];＊()Biography:PENGYongzhen(1949—),male,professor(Ph.D.),E-mail:[e-mail];＊Correspondingauthor,.2009.C/N[J].,29(2):225-230PengYZ,MaB.2009.ReviewofbiologicalnitrogenremovalenhancementtechnologiesandprocessesunderlowC/Nratio[J].ActaScientiaeCircumstantiae,29(2):225-230C/N彭永臻1,2,＊,马斌11.哈尔滨工业大学,市政环境工程学院,哈尔滨1500902.北京工业大学,北京市水质科学与水环境恢复工程重点实验室,北京100022:2008-03-01　　　:2008-10-31:C/N、,,.,、SBR;,、、.、、.:C/N;;;:0253-2468(2009)02-225-06　　　:X703　　　:AReviewofbiologicalnitrogenremovalenhancementtechnologiesandprocessesunderlowC/NratioPENGYongzhen1,2,＊,MABin11.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin1500902.KeyLaboratoryofBeijingWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100022Received1March2008;　　　accepted31October2008Abstract:ConsideringtheshortageoforganicmaterialsforbiologicalnitrogenremovalfromwastewaterunderlowC/Nratios,twomethodsareproposedinordertoachievehighefficiencyofbiologicalnitrogenremoval:.makingfulluseofthecarbonsourceandreducingtherequirementofcarbonsource.Tomakefulluseofcarbonsources,modifiedbiologicalnitrogenremovalprocessareintroduced,includingtheanoxic/oxicstepfeedingprocessandthepulsedSBRprocess.Toreducethecarbonsourcerequirementinbiologicalnitrogenremoval,novelbiologicalnitrogenremovalprocessesareintroduced,includingshort-cutnitrificationanddenitrification,theanaerobicammoniumoxidation(ANAMMOX)processandcompletelyautotrophicnitrogenremovalovernitrite(CANON)process.Themechanisms,theadvantages,theunsolvedproblemsandtheapplicationsofthesetechnologiesandprocessesareanalyzed.Keywords:lowC/Nratio;highefficiencynitrogenremoval;modifiedbiologicalnitrogenremovalprocess;novelbiologicalnitrogenremovaltechnologies1　(Introduction),.,,.,,.Kuba(1996)C/N3.4,.、、C/N,C/N1.,C/N,,DOI:10.13671/j.hjkxxb.2009.02.009　　　　　　　　　　29,.C/N?:,;、.1　C/NTable1　C/Nratioofwastewater(,2002)(,1999)(,2002)(Yangetal.,2007)3.002.671.492.352　(Modifiedbiologicalnitrogenremovalprocess),,80%(Maetal.,2005).:,,.,,,,(Baezaetal.,2004).,,,,,,,.SBR.1　(AX.;OX.;SC.)Fig.1　Schematicdiagramofthestep-feedbiologicalnitrogenremovalprocess2.1　缺氧好氧分段进水工艺,1,,.,,,,.,,.(2005),C/N,,95%.,,.50%,85%,40%.,80%,50%,350%(Zhuetal.,2007).,,,,,.,.,,,,,,.,(2006)DO0.5mg·L-1,95%.2.2　脉冲式SBR工艺SBRA/OSBR,.SBR2.2262:C/N2　SBRFig.2　OperationalmodeofthepulsedSBR,,,C/N.C/N,,COD,,.(2007)SBR,,TN2mg·L-1,TN97.3%.(2007)SBRORP、DO、pH、,SBR,,,.Yang(2007)SBR,,,,95%,SBR.3　(Novelbiologicalnitrogenremovaltechnology)3　Fig.3　Possibleconversionsofbiologicalnitrogenduringitsremovalfromwastewater,(VerstraeteandPhilips,1998),(3).:,;;.,.3.1　短程硝化反硝化工艺,,4.4　Fig.4　Biologicalnitrification-denitrificationviathenitritepathway　,NO-3NO-2,40%,C/N.25%;1.52;CO220%;33%～35%,55%.,,.:、、pH、.①:,,15℃30℃.②:Laanbroek(1994)::0.2～0.4mg·L-1、1.2～1.5mg·L-1,DO,,,,.③pH:pH,7.0～8.56.0～7.5,pH7.4～8.3,,pH8.0,pH7.0,,pH.④:,227　　　　　　　　　　29,.⑤:Anthonisen(1976),NH30.1～1.0mg·L-1,10～150mg·L-1,NH35～10mg·L-1.Sharon,,Sharon、、,,,.Yang(2007)SBR,11.9～26.5℃、DO≥2.5mg·L-1,,180d,95%.3.2　厌氧氨氧化工艺ANAMMOX(AnaerobicAmmoniumOxidation)Delft21(Graafetal.,1995),.:..(Jettenetal.,2007):NH+4+1.31NO-2+0.066HCO-3+0.13H+※1.02N2+0.26NO-3+0.066CH2O0.5N0.15+2.03H2O,:,;,;、,;、,.,:;,,;,;,,Sharon,,.,,.、pH、、.①:6～43℃,30～40℃,40℃,(Thamdrupetal.,2002);②pH:pH,pH6.7～8.3,pH8.0(Strousetal.,1997),pHNH3HNO2;③:,;④:,1000mg·L-1,,10mg·L-1;⑤:11d,,.(2007)SBRAnammox,NH+4NO-212mg·L-1,NH+494.5%,NO-397.4%,.Yang(2007)11.9～26.5℃,95%,.,,,,,.3.3　完全自养脱氮工艺CANON(completelyautotrophicnitrogenremovalovernitrite)2002Delft.:;;(Canon),.,,CANON,,100%;,,,63%2282:C/N;.,;.CANON,,.Third(2001),,;,,,,,.,2.2,,C/N.,、,,:、、,.2　Table2　Comparisonofconventionalandnovelbiologicalnitrogenremovaltechnologiesandprocesses2++2++ANAMMOX1、、SBRCANON1+、SBR4　(Concludingremarks)C/N,,.、,,;、、,,.C/N,,,,.(References):AnthonisenAC,LoehrRC,ParkasamTBS.1976.Inhibitionofnitrificationbyammoniaandnitriousacid[J].JWatPollutControlFed,48(5):65—71BaezaJA,GabrielD,LafuenteJ.2004.Effectofinternalrecycleonthenitrogenremovalefficiencyofananaerobic/anoxic/oxic(A2/O)wastewatertreatmentplant(WWTP)[J].ProcessBiochemistry,39(11):1615—1624,,.2007.[J].,31(6):775—779CaoJS,WangC,CaiJ.2007.FactorsaffectingtheANAMMOXprocessunderlowammoniaconcentration[J].JournalofNanjingUniversityofScienceandTechnology(NaturalScience),31(6):775—779(inChinese),,,.2002.-[J].,22(2):146—149ChenWG,XuT,PengYF,etal.2002.ThemethodofECS-EBACORfortreatinglandfillleachate[J].ChinaEnvironmentalScience,22(2):146—149(inChinese),,,.2002.[J].,18(3):92—94DengLW,CaiCD,ChenGM,etal.2002.Studyandapplicationoftechnologyforpost-treatmentofanaerobicallydigestedeffluentofpiggerywastewater[J].TransactionsoftheCSAE,18(3):92—94(inChinese),.1999.[J].,21(4):10—12Fan