MUCTMBR工艺反硝化除磷脱氮研究刘鹏霄

MUCT-MBR,＊,,,(,,　116024):MUCT-MBRMUCT,52,,,,.MUCT-MBR,.,CNP33.351～255.51,COD、TNTP89.3%、75.4%、79.2%;.MUCT-MBR,58d,(DPAOs)84.2%,67.07%.:MUCT-MBR;;:X703.1　:A　:0250-3301(2009)07-1995-06:2008-07-23;:2008-09-03:(NCET-07-0141):(1986～),,,E-mail:[e-mail]＊,E-mail:[e-mail]RemovalinMUCT-MBRLIUPeng-xiao,ZHANGHan-min,WANGXiao-lin,XIAOJing-ni,YANGFeng-lin(KeyLaboratoryofIndustrialEcologyandEnvironmentalEngineering,MinistryofEducation,SchoolofEnvironmentalandBiologicalScienceandTechnology,DalianUniversityofTechnology,Dalian116024,China)Abstract:Theself-designedMUCT-MBRsimplifiestheMUCTprocesswithreducingreactorsfrom5to2,whichgreatlyreduceslandoccupiedbyequipment.Insteadofsecondarysedimentationtank,themembraneeffluentqualityisquitesafe,andtheoperationissimple.IntheinvestigationaboutsimultaneousphosphorusandnitrogenremovalofMUCT-MBR,theresultsshowedthat:whentheproportionsofC,NandPintheinfluentwere33.351-255.51,theaverageremovalrateofCOD,TNandTPinthewholeexperimentalprocesswere89.3%,75.4%and79.2%,respectively.Andthesludgesettlingcapacityhadnoinfluenceonthemembraneeffluentquality.ThekeyfactorofNandPremovalratesisdenitrifyingphosphorusremovalinanoxiccondition.Theproportionofdenitrifyingphosphateaccumulatingorganisms(DPAOs)andtherateofdenitrifyingphosphorousremovalwere84.2%and67.07%onthe58thday,respectively.Keywords:MUCT-MBR;denitrifyingphosphorusremoval;denitrifyingphosphateaccumulatingorganisms　　MUCT(modifieduniversityofcapetown),UCT,,[1].,CN6～9,,,(denitrifyingphosphateaccumulatingorganisms,DPAOs),,DPAOs[2～4].,,DPAOs,[5].BNR(biologicalnutrientremoval),50%COD30%,50%;CODCO2,CO2[6～10].MUCT-MBR(membranebioreactor,MBR),,MUCT,DPAOs.,MUCT-MBRMBR、[11～13];,,;,,[14～16].MUCT-MBR,,.1　1.1　30720097　　　　　　ENVIRONMENTALSCIENCEVol.30,No.7Jul.,2009DOI:10.13227/j.hjkx.2009.07.0211.AB,,11L.0.1m3,0.01m3,,A.A、B,.B,.(Mitsubishi,Japan),0.15m2,0.1μm.1.;2.;3.;4.AA(A);5.AO(B);6.;7.;8.;9.;10.;11.;12.1　Fig.1　Schematicdiagramofexperimentalprocess　1.2　2,A,B.A10min2L,A,(B),12min(A※BTB※AR1).,.,12minB※AR2.B,A,,.2　Fig.2　Operationalmodeoftheexperiment　3(a),MUCT[3(b)],,MUCT,,MUCT-MBR　　　3　MUCT-MBRMUCTFig.3　ComparisonbetweentheoperationalmodeofMUCT-MBRandMUCTprocess1996　　　　　　30TRA、B,,52;,,,MUCT.TB,;R2,(PAOs)PHB[17],.、、,25℃±1℃,.2.4h,77min(10min),67min(12min12min),77min.1.2,ⅠCOD300mgL、NH+4-N45mgL、TP9mgL22d;ⅡN、P,COD300mgL、NH+4-N65mgL、TP12mgL36d.,.1　MUCT-MBRTable1　OperationparametersintheexperimentofMUCT-MBRprocessⅠ(0～22d)Ⅱ(23～58d)ABABCNP33.35133.351255.51255.51L9.5119.511HRTh11.413.211.413.2SRTd530530L·h-1—150—200(29～58d)L·h-1—0.83—0.83T()1)3—3—R1()—1—1R2()—1—11)T1.3　,MLVSSMLSS0.58.2、,1d4,6h,A5h,1h,B2h,3h,1h.,.,、NH4Cl、K2HPO4、KH2PO4MgSO4·7H2O、CaCl2·2H2O、FeSO4·2H2O、NaCl.NaHCO3.1.4　COD、NH+4-N、NO-3-N、TP[18],TN(TOC-VCPH,SHIMADZU),0.45μm.2　2.1　MUCT-MBR2.1.1　COD4(a),COD.COD254.1～300.9mgL,COD29.2mgL,COD89.3%,B34.3mgL,76.8%,COD.,4(a),COD,ACOD48.9～81.7mgL,71.8%～80.7%,(PAOs)PHBPHV,.,COD[19].2.1.2　NH+4-NTNⅠ,NH+4-N40.32～42.81mgL,4(b),,,NH+4-NTN.12d,,NH+4-N4.37～6.22mgL,TN8.01～8.23mgL,NH+4-NTN87.5%80.9%.Ⅱ,NH+4-N58.85～63.28mgL,NH+4-N,NH+4-NTN.29d,,NH+4-N82%,.,150m3h200m3h,36d,,48d,NH+4-N96.3%,TN69.2%,,NH+4-NTN91.5%69.9%.,MUCT-MBR[0.044～0.063kg·(m3·d)-1],,,,19977:MUCT-MBR4　MUCT-MBRCOD、NH+4-N、TNTPFig.4　CourseofCOD,NH+4-N,TNandTPremovalefficienciesinMUCT-MBRsystem　.2.1.3　TPⅠ,TP8.02～9.11mgL,TP0.69～2.31mgL,84.9%.4(c)5dTP,,N、P,,N、P.12dTP.Ⅱ,TP10.78～12.07mgL,NH+4-N,TP1.94～4.26mgL,TP74.7%.4(c),Ⅱ,TP62%,TP,36dTP.ⅡⅠTP,TP80%,,MUCT-MBR[0.0087～0.012kg·(m3·d)-1].2.2　2.2.1　,58d,5,,6.,23.5mgL,53.8mgL.,A、B,(77～144min)14.58mgL,(77～221min)21.74mgL,67.07%.,.(6)、、.5　58dFig.5　Periodicexperimenton58thday　,TP2.39mgL,TP0.31mgL,MUCT-MBR,,.,MUCT-MBR.,.2.2.2　DPAOsDPAOs1998　　　　　　306　Fig.6　VariationsofTPcontentofsludgeindifferentoperationalstages　[20],DPAOsPAOs:RDPAOs=qanoxqae(1),RDPAOsDPAOsPAOs;qanox,mg(g·h);qae,mg(g·h).7,58d、6.41mg(g·h)7.61mg(g·h),DPAOs84.2%,,,,MUCT-MBR.7　58dFig.7　Phosphorusuptakereleasebatchtestsofthesludgeon58thday　2.3　,8、9MLVSSMLSS、SVI.,(TMP).9,MLVSSMLSS,0.60～0.75,8　Fig.8　Changecurveofworkingpressure　9　MLVSSMLSSSVIFig.9　ChangecurveofMLVSSMLSSandSVIwithtimeduringtheoperationtime　(A)0.62,(B)0.69,,,.45d,A、BSVI200mLg,,.MLVSSMLSS0.6,,,.,TMP(8),.,,.29d,150Lh200Lh,,,TMP.3　(1)MUCT-MBR,.CNP33.351～255.51,19997:MUCT-MBRCOD、TNTP89.3%、75.4%、79.2%,.(2)MUCT-MBR,58d,DPAOs84.2%,67.07%.:[1]　,,.[M].:,2002.364-365.[2]　KubaT,VanLoosdrechtMCM,BrandseFA,etal.OccurrenceofdenitrifyingphosphorsremovingbacteriainmodifiedUCT-typewastewatertreatmentplants[J].WatRes,1997,31(41):777-786.[3]　,.[M].:,2005.105-109.[4]　ФstgaardK,ChristenssonM,LieE,etal.Anoxicbiologicalphosphorusremovalinafull-scaleUCTprocess[J].WatRes,1997,31(11):2719-2726.[5]　,,,.[J].,2007,28(3):517-521.[6]　KubaT,VanLoosdrechtMCM,HeijnenJJ.PhosphorusandnitrogenremovalwithminimalCODrequirementbyintegrationofdenitrifyingdephosphatationandnitrificationinatwo-sludgesystem[J].WatRes,1996,30(7):1702-1710.[7]　MerzoukiM,BernetN,DelgenesJP,etal.BiologicaldenitrifyingphosphorusremovalinSBR:effectofaddednitrateconcentrationandsludgeretentio