电子受体对同步脱氮除磷的影响赵庆

:2004-10-28:(50008014):　(1970-),,,,.第25卷　第4期2005年7月长安大学学报(自然科学版)　JournalofChang'anUniversity(NaturalScienceEdition)Vol.25　No.4July2005:1671-8879(2005)04-0103-04赵　庆1,关卫省1,王志盈2,袁林江2,高　榕3(1.,710054;2.,710055;3.,710054)　:在序批式反应器(SBR)系统内,利用活性污泥法,考察厌氧、缺氧、好氧组合工艺与厌氧、缺氧工艺中,硝酸盐和亚硝酸盐的存在、不同电子受体出现的顺序对同步脱氮除磷工艺的除磷影响,并讨论了在实现缺氧聚磷条件下,厌氧缺氧好氧工艺碳源的需求量。试验结果表明:反硝化聚磷是一种稳定的代谢行为,聚磷菌可以利用硝酸盐强化除磷;对于实现缺氧聚磷,硝酸盐的作用远远优于亚硝酸盐;亚硝酸盐的存在(16.1mgL-1)则对聚磷无明显影响;聚磷菌利用电子受体是以其存在的顺序而依次发生的,且这种利用能力不受电子受体转换的影响;在硝酸盐替代氧为电子受体的同步脱氮除磷工艺中,碳源需求将比传统工艺减少30%以上。:环境工程;电子受体;同步脱氮除磷;硝酸盐;亚硝酸盐;碳源:X703　　　:AEffectofelectronacceptorondenitrifyingphosphorusremovalZHAOQing1,GUANWei-sheng1,WANGZhi-ying2,YUANLin-jiang2,GAORong3(1.SchoolofEnvironmentalScienceandEngineering,Chang’anUniversity,Xi’an710054,China;2.SchoolofEnvironmentalandMunicipalEngineering,Xi’anUniversityofArchitecturalScienceandTechnology,Xi’an710055,China;3.Xi’anInstituteofEnvironmentalProtection,Xi’an710054,China)Abstract:Theeffectsofvarioustypesofelectronacceptorsonsimultaneouslyphosphorusandni-trogenremovalwereinvestigated.Theexperimentwasfocusedondenitrifyingphosphorusre-movalsituationunderdifferentelectronacceptoroccurrencesequenceandtypes(i.e.,nitrate,ni-trite)byusingactivatedsludgecultivatedinasequencingbatchreactor.Therequiredsubstrateinananaerobic-anoxic-aerobicsequencingbatchreactorwasdiscussed.Theexperimentalresultsshowedthatanoxicphosphorusuptakeoccurredwhennitrateasanelectronacceptorwaspresentandthemetabolicbehaviorofdenitrifyingphosphateaccumulatingorganismswasstably.Nitratewaspreferentiallyutilizedovernitriteforanoxicphosphorusuptake.Occurrenceofnitrite(16.1mgL-1)hadnoinhibitionforanoxicphosphorusuptake.Phosphateaccumulatingorganismsutilizede-lectronacceptoraccordingtoitsoccurrencesequence,thisabilitywasstableandfeasible.Indenitrifyingphosphorusremovalprocess,therequiredsubstratewasreduced30%.1tab,3figs,8refs.Keywords:environmentalengineering;electronacceptor;denitrifyingdephosphatation;nitrate;nitrite;carbonsubstrateDOI:牨牥牨牴牱牪牨牤jcnki牨牰牱牨牳牳牱牴牪牥牥牭牥牬牥牪牱0　　,、、。,。,。,,。,,[1,2],,[3]。,。,,。1　1.1　,,4.8L。、、、、、。ORP/pH。25℃。1.2　:CODcr();();();();(N(1));MLSS()。1.3　1.3.1　试验用水。:(),,;(),,;(),,;(),,;K+、Mg2+、Ca2+、SO2-4、Zn2+。11　CODPO4PNH4NNOXN/(mgL-1)35010±116±10±0.5TNTPpH/(mgL-1)16±110±17.0±0.2350±101.3.2　接种污泥。,(SBR),3000mgL-1。,/。2　2.1　、、、,,,。COD、、、,。1C/N4.3,C/P20,1、。1　A2/O1、1,A2/O,、,,29.95mgL-19.99mgL-1;,14.35mgL-11.22mgL-1,。NO-3O2β(PHB)。,,O2β(PHB)。9.99mgL-1104长安大学学报(自然科学版)　　　　　　　　　　　　　　2005年3.76mgL-1。,,。A2/O。PHB,,PHB,PHB。,PHB,。,C/N5,,。1,。,。,、,,。A/O/A,,12。2　A/O/A1A/A/O、A/O/AA/O,,,,。,;,。NO-3O2PHB。2.2　、A2/OA/A,NO-3。C/N3.6,C/P35A/A,3。3　、3,NO-3,,,,。,NO-3O2。[4],NO-3。,,,。,。,,A/A/O。3,,、。[5]。12.18mgL-116.10mgL-1,。、。、,,,NO-xO2。、,,,。,,NO-3O2PHB,。2.3　,O2。O2,NO-3,NO-3,,。105第4期　　　　　　　　　　　　赵　庆,等:电子受体对同步脱氮除磷的影响。,,1mgL-1,COD/TP20～30[6];,4～6gCOD/gNO3N[7]。24mgP、96mgNO3N38mgNH4N,864mgCOD,,552mgCOD。,30%[8]。3　　(1)SBR,,,。(2)(16.1mgL-1),,。(3),。(4)NO-3O230%。:References:[1]　KubaT,MumleitnerE,VanLoosdrechtMCM.Ametabolicmodelforbiologicalphosphorusremovelbydenitrifyingorganisms[J].BiotechnolBioeng,1996,52(6):685-695.[2]　KubaT,VanLoosdrechtMCM,HeijnenJJ.Phos-phorusandnitrogenremovalwithminimalCODre-quirementbyintegrationofdenitrifyingdephosphata-tionandnitrificationinatwo-sludgesystem[J].Wa-terResearch,1996,30(7):1702-1710.[3]　AhnJ,DaidouT,TsunedaS,HirataA.Metabolicbe-haviorofdenitrifyingphosphate-accumulatingorgan-ismsundernitrateandnitriteelectronacceptorcondi-tions[J].JournalofBioscienceandBioengineering,2001,92(5):442-446.[4]　NGWJ,ONGSL,HUJY.Denitrifyingphosphorusremovalbyanaerobic/anoxicsequencingbatchreactor[J].WaterScienceandTechnology,2001,43(3):139-146.[5]　MeinholdJ,ArnoldE,IssacsS.Effectofnitriteonanoxicphosphateuptakeinbiologicalphosphorusre-movalactivatedsludge[J].WaterResearch.1999,33(8):1871-1883.[6]　.[M].:,1991.YANXun-shi.Researchontechnologyofwaterandwastewater[M].Beijing:ChinaArchitectureandBuildingPress,1991.[7]　.[M].:,1999.NationalEngineeringResearchCenterforUrbanWaterandWastewater.Wastewatertreatmentbiologicalandchemicalprocesses[M].Beijing:ChinaArchitectureandBuildingPress,1999.[8]　,,.[J].(),2004,24(1):108-110.AICui-ling,HEYan-ling,ZHOUXiao-de.Pollutantsconcentrationcontrolintegratedmembranebioreacor[J].JournalofChang’anUniversity(NaturalScienceEdition),2004,24(1):108-110.交通部出台振兴东北交通发展规划纲要　　《》(《》)。2010,;2020,。、、。20042020。。2020:24×104km;9000km;,,;、();;,,。、、、,。106长安大学学报(自然科学版)　　　　　　　　　　　　　　2005年