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,(,710055)[],,,、、。。[];;[]X703[]A[]1005-829X(2015)02-0015-05ResearchprogressinthedenitrificationofsewageatlowC/NratioDengWeiwei,WangXiaochang(CollegeofEnvironmentalandMunicipalEngineering,Xi’anUniversityofArchitecturalScienceandTechnology,Xi’an710055,China)Abstract:InviewofthecharacteristicsofsewagewithlowC/N,somenewtypesofbiologicaldenitrificationtech鄄nologies,suchasdenitirificationrealizedbysupplyingorganiccarbonsourcesfromendogenesis,anddenitrification鄄anammox,hydrogenotrophictypeofdenitrificationbeingmadeofautotrophicbacteriumaresummarized.Thereac鄄tionmechanism,applicationprogress,advantagesandproblemstobesolvedofthesetechnologiesappliedtothetreatmentofsewagewithlowC/Nareintroduced.Theresearchprovidestheoreticalevidencefortheefficientande鄄conomictreatmentofsewagewithlowC/N.Keywords:lowC/N;denitrification;wastewatertreatment,、,、,,,,。2012,198,40.5%16.8%,“”(、)、、。,2。〔1〕;,COD/TKN<15,,3.3~8.5〔2〕,,,CO2,。,,,,〔3〕,,,〔3〕,。,。,,、,,。1,。3:、。,,SCOD/TKN6∶7,〔4〕。,,。〔5〕,、。[](2013ZX07310-001);(2011KTZB03-03-03);(CX12160)35220152IndustrialWaterTreatmentVol.35No.2Feb.,201515ChaoXing,3,()、PHAs(PHB)〔6〕,PHB。PHB。1.1,,NH3N2。,pH,。(1)、(2):NO2-+3H→1/2N2↑+H2O+OH-(1)NO3-+3H→1/2N2↑+H2O+OH-(2)(H〔7〕),,,pH。3:(1),;(2),;(3),〔6〕。1.2E.A.Dawes〔8〕,/,,PHB。M.Beccari〔9〕,,,。LeiQin〔10〕SBR,(CH3CH2OH)(KNO3)5,。,,;,PHB,,PHB。F.Carta〔11〕SBR,PHB。,PHB,;,PHB,。PHB。K.Bernat〔6〕SBR,COD/TN3.5,,,PHB,。,23、11h20.13、41.6mg/L。1.3:,,。:,PHB,,PHB。。2,2:〔12〕〔13〕,,。2.12.1.1A.A.vandeGraaf〔14〕N,,1。1Anammox,NH2OH。NO2-NH2OH,NH2OHNH4+N2H4,N2H4N2,2H+。,N2H4。:NH4++NO2-→N2↑+2H2O△G=-358kg/mol〔12,15〕(3),。,。2.1.2〔15〕,,,2015-02,35(2)16ChaoXing。FanGao〔16〕A/O/A,2。2A/O/A(COD/NH4+-N1.38~5.01)COD,COD(VFA),,-。63d。,COD/NH4+-N,COD/NH4+-N2.03,,75%,CODTN91.5%89.9%;-,COD/NO3--N0.94~1.01,。,,COD,,54.2%,80.1%CO2。JianlongWang〔17〕,。,COD/NH4+-N2~7.14,COD500mg/L。,NH4+-N、TN21.7%、54.5%,NH4+-N、TN13.4%、45.5%。2.1.3:,62.5%,;,NH4+,,,;,。:,,,2,-。FanGao〔16〕,COD/NO3--N1.06~1.61。2.22.2.1,(CO32-、HCO3-),,,〔18〕。(4)、(5)〔19〕。NO3-+H2→NO2-+H2O(4)NO2-+3/2H2+H+→1/2N2+2H2O(5),H+,pH,,。pH>8.6,,〔19〕。pH,pH,〔20〕。2.2.2,,,,,。,、,,,。〔21〕,,100%。,,〔22〕、〔23-24〕、〔25〕。PengLi〔22〕,。,,96%;,DO4.11、6.74mg/L,,。,DO1.2mg/L,,。CaixiaLu〔23〕,,(96.78±5.05)、(163.16±16.01)、(342.58±31.93)mg/(L·d)。,,,50%;(96.78±5.05)mg/(L·d),,。B.Rezania〔24〕,,0.11kg/(m3·d),SRT20d,HRT3h。,。,〔25〕,,2015-02,35(2),:17ChaoXing,,。2.2.3:,,,,;,,,。:,,,。,,〔26〕,,;,,,。3,、、。,,,,,,。,。,2。COD/NH4+-N/NO2--N,,。2,,,,,。[1]FuZhimin,YangFenglin,AnYingyu,etal.Characteristicsofnitriteandnitrateinsitudenitrificationinlandfillbioreactors[J].Bioresour.Technol.,2009,100(12):3015-3021.[2]MahneI,PrincicA,MegusarF.Nitrification/denitrificationinnitro鄄genhigh鄄strengthliquidwastes[J].WaterRes.,1996,30(9):2107-2111.[3]HerJJ,HuangJS.InfluencesofcarbonsourceandC/Nratioonni鄄trate/nitritedenitrificationandcarbonbreakthrough[J].Bioresour.Technol.,1995,54(1):45-51.[4]ChiouRJ,OuyangCF.Theeffectofrecycleratioonnitrogenremovalinthecombinedpre鄄denitrification/nitrificationbiofiltersystem[J].J.Chem.Technol.Biotechnol.,2001,76:559-564.[5]HatziconstantinouGJ.Primarysludgehydrolysisforbiologicalnu鄄trientremoval[J].Wat.Sci.Tech.,1996,34(2):417-423.[6]BernatK,Wojnowska鄄BarylaI,DobrzynskaA.DenitrificationwithendogenouscarbonsourceatlowC/NanditseffectonP(3HB)ac鄄cumulation[J].Bioresour.Technol.,2008,99(7):2410-2418.[7],.[M].:,1998:50-51.[8]DawesEA,SeniorPJ.Theroleandregulationofenergyreservepolymersinmicro鄄organisms[J].Adv.Microbial.Physiol.,1973,10:135-266.[9]BeccariM,MajoneM,MassanissoP,etal.Abulkingsludgewithhighstorageresponseselectedunderintermittentfeeding[J].WaterRes.,1998,32(11):3403-3413.[10]QinLei,LiuYu,TayJH.Denitrificationonpoly鄄β鄄hydroxybu鄄tyrateinmicrobialgranularsludgesequencingbatchreactor[J].WaterRes.,2005,39(8):1503-1510.[11]CartaF,BeunJJ,vanLoosdrechtMCM,etal.Simultaneoussto鄄rageanddegradationofPHBandglycogeninactivatedsludgecul鄄tures[J].Wat.Res.,2001,35(11):2693-2701.[12]vandeGraafAA,deBruijnP,RobertsonLA,etal.Anaerobicoxi鄄dationofammoniumisabiologicallymediatedprocess[J].Appl.Environ.Microbiol.,1995,61(4):1246-1251.[13]SakakibaraY.Thedenitrificationandneutralizationperformanceofanelectrochemicallyactivatedbiofilmreactorusedtotreatnitrate鄄contaminatedgroundwater[J].Wat.Sci.Tech.,1997,36(1):61-68.[14]vandeGraafAA,deBruijnP,RobertsonLA,etal.MetabolicpathwayofanaerobicammoniumoxidationonthebasisofN-15studiesinafluidizedbedreactor[J].Microbiology,1997,143(7):2415-2421.[15]YouJ,DasA,DolanEM,etal.Ammonia鄄oxidizingarchaeainvolveinnitrogenremoval[J].WaterRes.,2009,43(7):1801-1809.[16]GaoFan,ZhangHanmin,YangFenglin,etal.Studyofaninnovativeanaerobic(A)/oxic(O)/anaerobic(A)bioreactorbasedondenitrifi鄄cation鄄anammoxtechnologytreatinglowC/Nmunicipalsewage[J].ChemicalEngineeringJournal,2013,232:65-73.[17]WangJianlong,KangJing.Thecharacteristicsofanaerobicammo鄄niumoxidation(ANAMMOX)bygranularsludgefromanEGSBreactor[J].ProcessBiochem.,2005,40(5):1973-1978.[18],.[J].,2001,17(2):193-198.[19]KurtM,DunnIJ,BourneJR.BiologicaldenitrificationofdrinkingwaterusingautotrophicorganismswithH2inafluidized鄄bedbiofilmreactor[J].Biotechnology
本文标题:低碳氮比废水脱氮研究进展
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