电子受体类型对反硝化除磷的影响魏明岩

34820098ENVIRONMENTALSCIENCEANDMANAGEMENTVol.34No.8Aug.2009:2009-03-02:(1973-),,,,:。:1674-6139(2009)08-0097-04魏明岩1,赵亮2,王栋3,李子龙4(1.,151100;2.,100044;3.,518000;4.,100078)　:利用静态试验研究了电子受体类型对反硝化吸磷的影响,并且对以硝酸盐作为电子受体的反硝化除磷工艺提出了建议。试验结果表明:电子受体初始浓度为10.58mg/L～22.33mg/L时,以硝酸盐作为电子受体时的反硝化速率要大于以亚硝酸盐作为电子受体的反硝化速率;以硝酸盐作为电子受体时的缺氧吸磷速率也大于以亚硝酸盐作为电子受体时的缺氧吸磷速率。以硝酸盐作为电子受体的反硝化除磷系统中,亚硝酸盐冲击负荷会对系统脱氮除磷效果产生严重的影响。:反硝化除磷;电子受体类型;硝酸盐;亚硝酸盐:X76:AEffectofEllectronAcceptorTypeonDenitrifyingPhosphorusRemovalProcessWeiMingyan1,ZhaoLiang2,WangDong3,LiZilong4(1.ZhaodongWaterSupplyGeneralCompany,Zhaodong151100,China;2.BeijingNewMaterialArchitectureDesignResearchGroup,Beijing100044,China;3.ShenzhenShenshuiLonggangWaterCo.Ltd,Shenzhen518000,China;4.TheFirstEngineeringDepartmentofBeijingMunicipalGroup,Beijing100078,China)Abstract:TheeffectofnitriteconcentrationondenitrifyingphosphorusaccumulatingorganismsbySBRprocesswassystemat-icalystudied,atthesametimethesuggestionwasprovidedinthedenitrifyingphosphorusremovalsystemsusingnitrateasthee-lectronacceptor.Theresultsshowedthatthedenitrifyingrateusingnitrateastheellectronacceptorwashigherthanthatusingthenitritetheelletronacceptorwhentheellectronacceptorconcentrationwasbetween10.58and22.33mg/L.Theanoxicphosphor-usuptakerateusingnitrateastheellectronacceptorwashigherthanthatusingthenitritetheelletronacceptor.Thenitriteloadinghadasevereeffectontheperformanceofdenitrifyingphosphorusremovalsystemsusingnitrateastheellectronacceptor.Keywords:denitrifyingphosphorusremoval;electronacceptor;nitrate;nitrite　　,、,[1]。。,,“”[2]。,,,、,。,。1　1.1　SBR,,1,,1L,,,。SBR,。,WTWMulti340i(DO)、pH,WTWinolabpHlevel2ORP·97·34820098·Vol.34No.8Aug.2009(ORP),。1　1.2　,1。COD:;NH+4-N:;NO3-N:;NO-2-N:N-(1-)-;TN:-;:;MLSS:;pH:WTWinolablevel2。1　(mg/L)384.4mg/LCODcr300NH4Cl112.5mg/LNH+4-N30KH2PO449.4mg/LPO-4-P11NaHCO3300mg/LNOX-N1MgSO4·7H2O90mg/L200～450CaCl2·2H2O14mg/L[3]0.3ml/L1.3　AA-SBR2L,,1LSBR,1#2#,。,60mg/L。1#NO-3-N10.78、15.82、22.33mg/L,2#NO-2-N10.58、15.83、21.63mg/L。,1mol/LHCl0.5mol/LpH,pH=7.0±0.05,(24±0.3)℃。2　2.1　NO-3-NNO-2-N2。1#N1#NO-x-N,,,NO-x-N;2#N2#NO-2-N。(a)NO-3-NNO-2-N10.78mg/L10.58mg/L,MLSS2554mg/L(b)NO-3-NNO-2-N15.82mg/L15.83mg/L,MLSS2229mg/L(c)NO-3-NNO-2-N22.33mg/L21.63mg/L,MLSS2230mg/L2　NO-3-NNO-2-N2,,。30min2。10mg/L,30min30min2.94;·98·34820098·Vol.34No.8Aug.200915mg/L,30min30min3.72;22mg/L,30min30min1.34。:30,,,,。,,,,,,。2　mg/L30minmgPO3-4-P/gMLSS·h30minmgNO-x-N/gMLSS·hNO-3-N10.2317.518.17NO-2-N10.531.482.78NO-3-N15.8321.3010.45NO-2-N15.821.332.81NO-3-N22.334.652.25NO-2-N21.630.151.682.2　NO-3-NNO-2-N3。1#P1#PO3-4-P;2#P2#PO3-4-P。(a)NO-3-NNO-2-N10.78mg/L10.58mg/L,MLSS2554mg/L(b)NO-3-NNO-2-N15.82mg/L15.83mg/L,MLSS2229mg/L(c)NO-3-NNO-2-N22.33mg/L21.63mg/L,MLSS2230mg/L3　NO-3-NNO-2-N32,,10mg/L,30min30min11.83;15mg/L,30min30min16.02;22mg/L,30min30min31。:①,,,[4];②DPAOs,,;③,,[5-8]。2.3　,,,,。。,[9]。3　(1)10.58mg/L～22.33mg/L,。(2)10.58mg/L～22.33mg/L,10。·99·34820098·Vol.34No.8Aug.2009(3),,,。:[1]王亚宜.反硝化除磷脱氮机理及工艺研究[D].哈尔滨工业大学工学博士学位论文,2004:6.[2]T.Kuba,M.C.M.VanLoosdrecht,etal.Phos-phorusandNitrogenRemovalwithMinimalCODRequirementbyIntegrationofNitrificationinaTwo-sludgesystem[J].Wat.Res,1996,42(1-2):1702-1710.[3]SmoldersG,VanD.J,VanL.M,etal.Stoichiomet-ricmodeloftheaerobicmetabolismofthebiologicalphosphorusremovalprocess[J].BiotechnologyandBioengineering,1994,44:837-848.[4]ZhouY,PijuanM,YuanZG.Freenitrousacidinhibi-tiononanoxicphosphorusuptakeanddenitrificationbypoly-phosphateaccumulatingorganisms[J].BiotechnolBioeng,2007,98:903-912.[5]J.P.Kerrn-Jespersen,M.Henze,R.Strube.Bio-logicalphosphorusreleaseanduptakeunderalternatinganaero-bicandanoxicconditionsinafixed-filmreactor[J].WaterRes,1994,28:1253-1255.[6]J.Meinhold,E.Arnold,S.Isaacs.EffectofNitriteonAnoxicPhosphateUptakeinBiologicalPhosphorusRemovalActivatedSludge[J].WaterRes,1999,33:1871-1883.[7]J.Ahn,T.Daidou,S.Tsuneda,etal.Metabolicbe-haviorofdenitrifyingphosphateaccumulatingorganismsundernitrateandnitriteelectronacceptorconditions[J].J.Biosci.Bioeng,2001,92:442-446.[8]王爱杰,吴丽红,任南琪,等.亚硝酸盐为电子受体反硝化除磷工艺的可行性[J].中国环境科学,2005,25(5):515-518.[9]T.Saito,D.Brdjanovic,M.C.M.vanLoosdrecht.EffectofNitriteonPhosphateUptakebyPhosphateAccumulatingOrganisms[J].WaterResearch,2004,38:3760-3768.(上接第96页)　　6NH3-Nλ,λ=0.1、0.2、0.3NH3-N0.48mg/L、1.37mg/L、2.22mg/L,97.3%、91.9%、87.9%,,。7TNλNH3-N,λ=0.1、0.2、0.316.8mg/L、17.9mg/L、18.9mg/L,,57.0%、53.3%、51.9%,。,λ,CASS,,,,λ。3　(1)DO,3h～4hDO2.5mg/L～3mg/L,,SNDSQND。(2),,,。(3)λ,,CASS,λ。(4)CASS,:SRT、、C/N,。:[1]M.C.Goronszy.TheCyclicActivatedSludgeSystemForResortAreaWastewaterTreatment[J].WaterScienceandTechnology,1995,32(9-10):105-114.[2]熊红权,李文彬.CASS工艺在国内的应用现状[J].中国给水排水,2003,1(2):34-35.[3]M.C.Goronszy,朱明权,K.Wutscher.循环式活性污泥法(CAST)的应用及其发展[J].中国给水排水,1996,12(6):4-10.[4]M.C.Goronszy,朱明权,K.Wutscher.循环式活性污泥法在工业废水中的应用[J].中国给水排水,1997,13(1):7-12.[5]N.J.Slater,M.C.Goronszy.TheCyclicActivatedSludgeSystem:aWaytoAchieveDischargeStandards[M].NewWorldWater,1994:81-83.[6]M.C.Goronszy.AdvancementsinCyclicActivatedSludgeTechnology[M].IAWQYearbook,1999:24-25.[7]胡坚,潘绵立,等.CAST工艺处理城市污水的强化脱氮研究[J].中国给水排水,2006,22(15):58-61.[8]陈