CP比与磷回收对生物营养物去除系统影响的试验研究

CPP,,,(,100044):)))BCFS,CPP(CODPP).,,TP87%,TP([018mg#L-1).CODPP24,TP62%,TP5mg#L-1.,;30%,TP1mg#L-1;TP54%.,.:BCFS;CODPP;;;;(PAOsDPB):X703.1:A:0250-3301(2008)11-3098-06:2007-12-22;:2008-02-25:(863)(2006AA06Z320);(BJE10016200611);(8063028):(1960~),,,,,E-mail:[e-mail]EffectofCODPPRatiosandPhosphateRecoveryonaBNRSystemHAOXiao-di,DAIJi,HUYuan-sheng,CAOYa-li(TheR&DCentreforSustainableEnvironmentalBiotechnology,BeijingUniversityofCivilEngineeringandArchitecture,Beijing100044,China)Abstract:BasedonaBNRsystem)BCFS,theeffectofCODPPandphosphaterecoveryontheBCFSprocesswasexperimentallyinvestigated.TheresultsindicatethatahigherP-removalefficiency(87%)andagoodP-effluentquality([018mg#L-1)couldbemaintainedatCODPPratioshigherthan24.WhenCODPPwasreducedbelow24,theP-removalefficiencywassuddenlydecreaseddownto62%andtheP-effluentwentupto5mg#L-1.Underthecircumstance,chemicalphosphaterecoveryintheside-streamofanaerobicsupernatantwascombinedwithbio-Premoval.Whentheside-streamincreasedupto30%,theP-effluentwentbackto1mg#L-1,withacorrespondingphosphaterecoveryefficiencyof54%.Keywords:BCFSsystem;CODPPratio;side-streamratio;anaerobicsupernatant;chemicalphosphaterecovery;PAOs,DPBNP[1,2],P,(TP)01015mg#L-1.P,(TP)[3].[4~6],,.,(COD),,.,.(P2O515%),100a[7];70a[8].,/0/0.,,CPP,.[9,10],[11~13].,UCT)))BCFS,(P),10[14,15].[16].2911200811ENVIRONMENTALSCIENCEVol.29,No.11Nov.,2008:;,.[17].BCFS,CPP(CODPTP),CPP.C,,(),,BCFS,.11.1BCFS0142m3#d-1,1.,.,(QS),.Qin=20LPhQA=40LPhQB=0LPhQC=48LPhQRS=20LPhQS=(0~015)QinR1=40LR2=6LR3=40LR4=120LR5=120LR6=60L1BCFSFig.1Schematicrepresentationofalab-scaleBCFSprocess1.2,1.1Pmg#L-1Table1ComponentsofinfluentwastewaterPmg#L-115011814167166COD450435199(C6H12O6#H2O)270261160170164171TP(KH2PO4)8351121565185NH4Cl2014178TN15139118141818067166KKCl1013719183EDTA310FeCl3#6H2O0145H3BO30105CuSO4#5H2O0101KI0105MnCl2#4H2O0104Na2MoO4#2H2O0102ZnSO4#7H2O0104CoCl2#6H2O0105CODTPCODPTP,CODPP.TP(8mg#L-1),600mg#L-1,COD,COD320mg#L-1.,COD,TPCODPP.,,pH1030min.15d,.,CODTPTNNH+4NO-3VSSSS[18],DOYSI1700,OPRWTWORP.1.3BCFS,(SRT)15~20d.SRT,8~10L#d-1(2).3800~4500mg#L-1,(CODPMLSS#t)012~016g#(g#d)-1;SVI100~130mL#g-1.ORP-270~300mV.PDO309911:CPP015mg#L-1.,DO2~4mg#L-1.3:10%20%30%().22.1CPP2CODPP(7613521641182313).2(a),CODPPCOD,4,92%,97%.COD25mg#L-1.COD,COD;COD,70%~90%.2(a),COD.COD,COD(70mg#L-1);CODCOD([400mg#L-1),COD25mg#L-1.17min(HRT),COD,COD(COD20mg#L-1).,.BCFS0142m3#d-1,1.,.,(QS),.2(c),CODPPTN,4,85%.TN8mg#L-1.2(d),(CODPP761352164118),TP,87%.CODPP2313,CTP,62%,TP514mg#L-1.2.22CODPPFig.2EffectofinfluentCODPPratioonnutrientremovalCODPP2313TP,COD.,,.3310029(0%10%20%30%).,(CODPP=2313),(),,.3(a),COD,COD,COD95%(COD22mg#L-1).COD.3(b),NH+4,4,100%,NH+4.NH+40mg#L-1(013mg#L-1).3(c),TN.,NO-3(4).,TNNO-3.3(d),,TP,PO3-4,PO3-4.30%,TP1mg#L-1,3Fig.3Effectofside-streamratioonnutrientremoval.33.1CODPPCODTP,CODPP2313C,,TP514mg#L-1,TP62%.Hao[16],CODPP20,TP[1mg#L-1.COD,VFA.CODPP20,VFA70mgPL[16];VFA,VFA.,CODPP.2(d),CODPP,PO3-4,(GAOs)CODPP(50)[20].3.2,PO3-4,30%[3310111:CPP(d)],Barat[17](30%~40%,).PAOsPDPB.PO3-4,Poly-P,PO3-4,.4,,TP,TP.4Fig.4Bio-Preleaseanduptake,andchemica-lPremoval.,,,.,PO3-4,.54%TP(30%),TP1mg#L-1,.,.,TPP,PO3-4TP.TP,SS.3.3Barat[17],NH+4,(40%,)NH+4,PO3-4.NH+4[3(b)].:30%,;Barat,,.5,NO-3,PO3-4..5NO-3Fig.5Effectofside-streamratioonnitrateconcentration4CODPPBCFSCODNH+4TN.CODPP2313,C,,TP514mg#L-1,TP62%.,C.PO3-4,30%,30%,31022954%,TP1mg#L-1,.,Barat;NO-3,PO3-4,.:[1]LauPS,TamNFY,WongYS.Wastewaternutrients(NandP)removalbycarrageenanandalginateimmobilizedchlorellavulgaris[J].EnvironTechnol,1997,18(9):945-951.[2]Tr†panierC,ParentS,ComeauY,etal.Phosphorusbudgetasawaterqualitymanagementtoolforclosedaquaticmesocosms[J].WaterRes,2002,36(4):1007-1017.[3]GB8978-2002,[S].[4]VanLoosdrechtMCM,HooijmansCM,VrdjanovicD,etal.Biologicalphosphateremovalprocesses[J].ApplMicrobiolBiot,1997,48(3):289-296.[5]StratfulI,BrettS,ScrimshawMB,etal.Biologicalphosphorusremoval,itsroleinphosphorusrecycling[J].EnvironTechnol,1999,20(7):681-695.[6]DuenasJF,AlonsoJR,ReyAF,etal.Characterizationofphosphorousformsinwastewatertreatmentplants[J].JHazardMater,2003,97(1-3):193-205.[7]IsherwoodKF.Mineralfertilizeruseandtheenvironment[A].In:InternationalFertilizerIndustryAssociation.UnitedNationsEnvironmentProgramme[C].Paris:IFAPUNEP,2000.106.[8],.)))[J].,2003,29(1):20-24.[9]GaterellMR,GayR,WilsonR,etal.AneconomicandenvironmentalevaluationoftheopportunitiesforsubstitutingphosphorusrecoveredfromwastewatertreatmentworksinexistingUKfertilizermarkets[J].EnvironTechnol,2000,21(9):1067-1084.[10]KurodaA,TakiguchiN,GotandaT,etal.Simplemethodtoreleasepolyphosphatefromactivatedsludgeforphosphorusreuseandrecycling[J].BiotechnolBioeng,2002,78(2):333-338.[11]JeanmaireN,EvansT.Technica-leconomicfeasibilityofP-recoveryfrommunicipalwastewaters[J].EnvironTechnol,2001,22(11):1355-1361.[12]UenoY,FujiiM.Threeyearsexperienceofoperatingandsellingrecoveredstruvitefromful-lscaleplant[J].EnvironTechnol,2001,22(11):1373-1381.[13]YoshinoM,YaoM,TsunoH,etal.Removalandrecoveryofphosphateandammoniumasstruvitefro