反硝化除磷机理及电子受体研究进展刘占会

3310200810ENVIRONMENTALSCIENCEANDMANAGEMENTVol.33No.10Oct.2008:2008-04-30:(1984-),,,2006,。:1673-1212(2008)10-0134-03刘占会1,张雁秋1,李燕1,肖宁2(1.(),221008;2.,253000)　:介绍了生物除磷的Comeau-Wentzel模式,这种模式在某种程度上能够解释生物除磷的机理,因此PAOs释磷和吸磷的Comeau-Wentzel模式被借鉴用以分析反硝化除磷的机理。在此基础上,总结近年来反硝化除磷的研究成果,阐述电子受体NO-x对反硝化除磷的影响:在厌氧区,只有当NO-3浓度较高时,厌氧释磷的效果才会受到影响;在缺氧区,硝酸盐能够做为反硝化除磷的电子受体,但硝酸盐浓度过高会明显降低磷去除速率;亚硝酸盐同样能够作为反硝化除磷的电子受体,前提是亚硝酸盐不超过临界抑制浓度。:反硝化除磷;Comeau-Wentzel模式;超量吸磷;电子受体:X703.1:AMechanismsofDenitrifyingDephosphatationandReviewonElectronAcceptorsLiuZhanhui,ZhangYanqiu,LiYan,XiaoNing(1.JiangsuKeyLaboratoryofResourcesandEnvironmentalInformationEngineering(ChinaUniversityofMiningandTechnology),Xuzhou221008,China;2DezhouLianheruntongWaterServiceLimitedCompany,Dezhou253000,China)Abstract:TheComeau-Wentzelmodelonbiologicalphosphorusremovalisdescribed.Itissuggestedthatthismodelshouldbeappliedindenitrifyingdephosphatation.Accordingtothelatestresearchfindingondenitrifyingdephosphatation,theeffectofelectronacceptorsondenitrifyingdephosphatationisdiscussedindetails.Inthepresenseoflotsofnitrate,anaerobicphosphorusreleasewouldbedecreased.Nitratecanbeutilizedaselectronacceptorindenitrifyingdephosphatation,butthevelocityofphos-phorusuptakewouldreducewhentheconcentrationofnitrateexceedsaninhibitionlevel.Nitritecanalsobeutilizedaselectronacceptorindenitrifyingdephosphatationsolongasitsconcentrationdoesnotexceedaninhibitionlevel.Keywords:denitrifyingdephosphatation;comeau-Wentzelmodel;luxuryphosphorusuptake;electronacceptor,,,“”(denitrif-yingdephosphatation)。,,、50%、30%50%[1]。,:、。(NADH+H+),NO-x、SO2-4、CO2-3,ATP,、。DPB((DenitrifyingPhosphateRemovalBacter)NO-x、PHB,ATP。1　,。PAOsComeau-Wentzel[2]。1。,()。,ATP,A,ADP。(Poly-Pn)ATP,ATP/ADP·134·3310200810·Vol.33No.10Oct.2008。ATCA,PHB(NADH+H+)。APHB,90%。,,DPB。NO-x,DPB,PHB,ATP,。ATP/ADP,,,。1　Comeau-Wentzel　　,。,PAOsDPB。,DPBPHBNO-x,。,,DPB/PAOs。,NO-xNO-3NO-2,。2　NO-32.1　NO-3,NO-3[3]。,NO-3,PHB。NO-3:a.NO-3,NO-3;b.NO-3,,[4]。NO-3,,DPB。NO-3。[5],NO-3,,;NO-3,VFA,COD,,。,NO-3-N1.5mg/L,NO-3,NO-3-N2.5mg/L,[6-7]。NO-3。:A.、;B.、、;C.、。A、B。SA(A),;SB(B)。2.2　NO-3,NO-3,[8]。Kuba[9]MUCT,NO-3-N2814mg/(L),DPB/PAOs50%20%～40%。NO-3DPB,DPBPAOs。NO-3·135·3310200810·Vol.33No.10Oct.2008。NO-3,。[10]AA-SBR,NO-3-N15mg/L,TP23%;NO-3-N25mg/L～45mg/L,TP60%70.4%;NO-3-N55mg/L,TP34%,。[11],NO-3,,NO-3,,。NO-3NO-2。,NO-3[12]。3　NO-2NO-2,,。1970,GaudyA.F.[13]PAOs。。KerenJespersen[14]/、,NO-3,,。,,,。,NO-2[15-18],NO-2。JensMeinhold[19],NO-2-N(4～5mg/L),DPB,DPB,NO-2-N8mg/L,DPB。[17],25mg/L,,,;30mg/L,。4　(1),Comeau-WentzelMino。,。(2)NO-3,NO-3,;NO-3,:a.;b.。(3)NO-3,NO-3,。(4)NO-2,NO-2,DPB;NO-2,DPB,。:[1]TKuba,etal.PhosphorusandnitrogenwithminamalCODrequirementbyintegrationofdenitrifyingdehposphatationandnitrificationinatwo-sludgesystem[J].WatRes,1996,30(7):1702-1710.[2]C.P.LeslieGrady,Jr.,GlenT.Daigger,HenryC.Lim著.废水生物处理[M].第二版,北京:化学工业出版社,2003.[3]SormR,BortoneG.Phosphateuptakeunderanoxicconditionsandfixed-filmnitrificationinnutrientremovalacti-vatedsludgesystem[J].WatRes,1996,7(30):1573-1584.[4]徐亚同.废水中氮磷的处理[M].上海:华东师范大学出版社,1996.[5]罗宁.双泥生物反硝化吸磷脱氮系统工艺的试验研究[D].重庆:重庆大学,2003.[6]王春丽,马放,米海蓉,等.反硝化除磷系统的启动及其稳定性研究[J].给水排水,2006,32(增刊):126-129.[7]刘慧,米海蓉.硝氮对反硝化除磷系统效率的影响[J].大庆石油学院学报,2006,30(4):43-45.[8]MerzoukiM,BernetN.Biologicaldenitrifyingphos-phrusremovalinSBR:effectofaddednitrateconcenteationandsludgeretentiontime[J].WatSciTech,2001,43(3):191-194.[9]KubaT,vanLoosdrechtM.C.M.,BrandseFA,etal.OccurrenceofdenitrifyingphosphorrsremovingbacteriainmodifiedUCT-typewastewatertreatmentplants[J].WatRes,1997,31(4):777-786.[10]傅金祥,王颖,池福强,等.电子受体质量浓度对反硝化除磷过程的影响[J].沈阳建筑大学学报(自然科学版),2007,23(5):806-808.[11]孙晓洁,周少奇,丁进军,等.不同电子受体影响下的反硝化除磷过程[J].华南理工大学学报(自然科学版),2007,35(6):120-126.[12]李勇智,彭永臻,张艳萍,等.(下转第140页)·136·3310200810·TiO2Vol.33No.10Oct.20084　3　TiO24BS,4BS-SO-3TiOH+2,;,rC0,I1.48mw/cm2,r;·OH。:[1]MillsA,HunteSL.A.Overviewofsemiconductorphotocatalysis[J].J.Photochem.PhotobiolA:Chem.,1997,108:1-35.[2]HoffmannMR,MartinST,ChoiWetal.Envioron-mentapplicationsofsemiconductorphotocatalysis[J].Chem.Rev.,1995,95(1):69-96.[3]张金龙,陈海军,徐华胜,等.可见光照射下丙炔光催化水解反应的研究Ⅱ.钒离子对二氧化钛催化性能的影响[J].催化学报,2004,25(1):10-14.[4]C.Hachem,F.Bocquillon,O.Zahraa,etal.,Decol-ourizationoftextileindustrywastewaterbythephotocatalyticdeg-radationprocess[J].DyesandPigments,2001.49:117-125.　　[5]韩世同,习海玲,史瑞雪,等.半导体光催化研究进展与展望[J].化学物理学报,2003,16(5):339-349.[6]Turchi.C.S.,Ollis.D.F.Photocatalyticdegradationoforganicwatercontaminants:mechanismsinvolvinghydroxylradicalattack[J].J.Catal.,1990,122:178-192.[7]MatthewsRW.Kineticsofphotocatalyticoxidationoforganicsolutesovertitaniumdioxide[J].J.Catal.,1998,111(2):264-272.[8]范山湖,孙振范,李玉光,等.偶氮染料吸附和光催化氧化动力学[J].物理化学学报,2003,19(1):25-29.[9]LiuG.M,LiX.Z,ZhaoJ.C.etal.,PhotooxidationmechanismofdyealizarinredinTiO2dispersionsundervisibleillumination:anexperimentalandtheoreticalexamination[J].J.Mol.Catal.A.,2000,153:221-229.[10]C.Hachem,F.Bocquillon,O.Zahraa,etal.,Decol-ourizationoftextileindustrywastewaterbythephotocatalyticdegra-dationprocess[J].DyesandPigments,2001,49:117-125.[11]邓沁,肖新颜,廖东亮,等.TiO2薄膜光催化降解甲基橙反应动力学研究[J].精细化工,2003,20(12):721-723.[12]ClaudioM