低碳氮比条件下高效生物脱氮策略分析

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(No.50778005);(No.EDBS07/1253974092);(No.8062006)SupportedbytheNationalNaturalScienceFoundationofChina(No.50778005),theEnvironmentandWaterIndustry(EWI)DevelopmentSchemeofSingapore(No.EDBS07/1253974092)andtheNaturalScienceFoundationofBeijing,China(No.8062006):(1949),,(),E2mail:[e-mail];3()Biography:PENGYongzhen(1949),male,professor(Ph.D.),E2mail:[e-mail];3Correspondingauthor,.2009.C/N[J].,29(2):225-230PengYZ,MaB.2009.ReviewofbiologicalnitrogenremovalenhancementtechnologiesandprocessesunderlowC/Nratio[J].ActaScientiaeCircumstantiae,29(2):225-230C/N1,2,3,11.,,1500902.,,100022:2008203201:2008210231:C/N,,.,SBR;,..:C/N;;;:025322468(2009)022225206:X703:AReviewofbiologicalnitrogenremovalenhancementtechnologiesandprocessesunderlowC/NratioPENGYongzhen1,2,3,MABin11.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin1500902.KeyLaboratoryofBeijingWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100022Received1March2008;accepted31October2008Abstract:ConsideringtheshortageoforganicmaterialsforbiologicalnitrogenremovalfromwastewaterunderlowC/Nratios,twomethodsareproposedinordertoachievehighefficiencyofbiologicalnitrogenremoval:.makingfulluseofthecarbonsourceandreducingtherequirementofcarbonsource.Tomakefulluseofcarbonsources,modifiedbiologicalnitrogenremovalprocessareintroduced,includingtheanoxic/oxicstepfeedingprocessandthepulsedSBRprocess.Toreducethecarbonsourcerequirementinbiologicalnitrogenremoval,novelbiologicalnitrogenremovalprocessesareintroduced,includingshort2cutnitrificationanddenitrification,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,,©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,;.1C/NTable1C/Nratioofwastewater(,2002)(,1999)(,2002)(Yangetal.,2007)3.002.671.492.352(Modifiedbiologicalnitrogenremovalprocess),,80%(Maetal.,2005).:,,.,,,,(Baezaetal.,2004).,,,,,,,.SBR.1(AX.;OX.;SC.)Fig.1Schematicdiagramofthestep2feedbiologicalnitrogenremovalprocess2.1,1,,.,,,,.,,.(2005),C/N,,95%.,,.50%,85%,40%.,80%,50%,350%(Zhuetal.,2007).,,,,,.,.,,,,,,.,(2006)DO0.5mgL-1,95%.2.2SBRSBRA/OSBR,.SBR2.622©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2007)SBR,,TN2mgL-1,TN97.3%.(2007)SBRORPDOpH,SBR,,,.Yang(2007)SBR,,,,95%,SBR.3(Novelbiologicalnitrogenremovaltechnology)3Fig.3Possibleconversionsofbiologicalnitrogenduringitsremovalfromwastewater,(VerstraeteandPhilips,1998),(3).:,;;.,.3.1,,4.4Fig.4Biologicalnitrification2denitrificationviathenitritepathway,NO-3NO-2,40%,C/N.25%;1.52;CO220%;33%35%,55%.,,.:pH.:,,1530.:Laanbroek(1994)::0.20.4mgL-11.2115mgL-1,DO,,,,.pH:pH,7.08.56.07.5,pH7.48.3,,pH8.0,pH7.0,,pH.:,722©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:Anthonisen(1976),NH30.11.0mgL-1,10150mgL-1,NH3510mgL-1.Sharon,,Sharon,,,.Yang(2007)SBR,11.926.5DO2.5mgL-1,,180d,95%.3.2ANAMMOX(AnaerobicAmmoniumOxidation)Delft21(Graafetal.,1995),.:..(Jettenetal.,2007):NH+4+1.31NO-2+0.066HCO-3+0.13H+1102N2+0.26NO-3+0.066CH2O0.5N0.15+2.03H2O,:,;,;,;,.,:;,,;,;,,Sharon,,.,,.pH.:643,3040,40,(Thamdrupetal.,2002);pH:pH,pH6.78.3,pH8.0(Strousetal.,1997),pHNH3HNO2;:,;:,1000mgL-1,,10mgL-1;:11d,,.(2007)SBRAnammox,NH+4NO-212mgL-1,NH+494.5%,NO-397.4%,.Yang(2007)11.926.5,95%,.,,,,,.3.3CANON(completelyautotrophicnitrogenremovalovernitrite)2002Delft.:;;(Canon),.,,CANON,,100%;,,,63%822©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2001),,;,,,,,.,2.2,,C/N.,,,:,.2Table2Comparisonofconventionalandnovelbiologicalnitrogenremovaltechnologiesandprocesses2++2++ANAMMOX1SBRCANON1+SBR4(Concludingremarks)C/N,,.,,;,,.C/N,,,,.(References):AnthonisenAC,LoehrRC,ParkasamTBS.1976.Inhibitionofnitrificationbyammoniaandnitriousacid[J].JWatPollutControlFed,48(5):6571BaezaJA,GabrielD,LafuenteJ.2004.Effectofinternalrecycleonthenitrogenremovalefficiencyofananaerobic/anoxic/oxic(A2/O)wastewatertreatmentplant(WWTP)[J].ProcessBiochemistry,39(11):16151624,,.2007.[J].,31(6):775779CaoJS,WangC,CaiJ.2007.FactorsaffectingtheANAMMOXprocessunderlowammoniaconcentration[J].JournalofNanjingUniversityofScienceandTechnology(NaturalScience),31(6):775779(inChinese),,,.2002.2[J].,22(2):146149ChenWG,XuT,PengYF,etal.2002.ThemethodofECS2EBACORfortreatinglandfillleachate[J].ChinaEnvironmentalScience,22(2):146149(inChinese),,,.2002.[J].,18(3):9294DengLW