不同泥龄下活性污泥絮体性状的研究朱哲

282(ENVIRONMENTALCHEMISTRYVol.28,No.lJanuayr20(`,,’,2,”(1,,2237;2,,,1《)85)()、()、(、).:;/,;,;,,,,;,,;,.,.,,,,.,、.、,(ESP).ESP,.(SBR),())、()、(、),ESP.11.1SBR,ZL,.,,d8,ord,d20d.,CO:D:NP=100:5:l,:Feso4·7HZo,2.49mg·l’;Mnso4·HZo,0.23mg·l’:Cuso4·5H20,0.39mg·l’;MgS04·7H,5.07mg·l`;Nael,0.25mg·l’;znso4·7HZo,0.mg’;eoelZ·6HZo,0.41mg·l’.12h,lomin,loh,lh,ormin,40min,.:20℃,pH=7.00.2,DO=3.omg·l’smg·l’.1.1.2ESPESP,,809·gvss’,150:·min’4h.,l0:·min’4℃1min,.6:·imn’,4℃min,ESP.3.ESP、DNAESP,ESP++DN.A,,DNA,2008226.*(50678068).**,El:。hhyao@ecusLedu.。n1:EsPmSP·gVSS’;(eztasiezr2000,Malvem,UK)·1aTble1hTeepformranceoftheeraCotsrl/·d’CoD/mg·l’Ms/mg·l’d/20151084550045X()5X()45X()5X()45X()5X()le5r,`,`,`,`1.3(Mastesrizer20(,Malvern,UK)..、,、(S3《XN,iHacthi,aJaPn).SVIESS.COD,Svl,MSLS,MLvSSEss《()》.22.1ESP(SR)TESP1.1,ESP.20d,EsP,smg·gvSS’.,ESP.,,50%,70%,DNA.DNA19%6%,9%13%.ESP(/)2.2,/3.57.1.(SRT=sd),/,7.1.ESP/0.2,,.1ESPFi1EffeetofSRTonhteESP2R2EffeetofSRTonhtelysacehairde/porteinE、、、、、..(SRT20d),(F/M0.27kgcOD/kgMS·d’),,,.ESP.,,DNA.ESP..,28’〕.,,,31[.,,,EsP.d815d,/,20d,/..Uao.,,,.4d12d,/;16d2d0,/[`〕.E./ESP./.3/.3,/,ezat.,.,、、.,/ESP.,ESP〔’〕,,ESP.34567821131725A`Z/3/Fig3TheerlationshiPbewteenzetaandlysacehiarde/porteinatdiffeerntSRTs2.24.。.4,,97m170m.(SRT8,10d),.,.,,.,,.,(SRT8,10d),ESP/,,,EsPCa,+.1d520d,,,.,15d20d,,ESP,EsP,,,20d15d.uandGanczacryzk,,〔61.,1.ld4.Zd17.d4[’〕..,.2.3.5,,,,.1.72.5s[],1.99.57,.1:4ORSTdsSRT10d△SRT51dRST2d0RE4effetOfSRTnohteslduegfleosizedisirtbutino5。D,()aD.()iFg5EffeetofSRTonthesludflocfraealtdimension8d,10d,d20d6.6,(SRT8,10d),,,;(sRT15d,20d),,,,.45,8d20d,170m97m.,2.232.57(),1.992.28()..,,,.6.,d810d,ESP,,,.(l)(2)—{~’.6(l)SRTsd;(2)SRT10d;(3)SRT15d;iFg6SEMimesOfsludgeflocatdiffeernt(10K)(4)SRT20dSRTs(x10K)2.47,,,SVI.,d8,SVI104ml·g’,.728,ESS,ESSSVI.,iF7EffeetfOSRTonthebillOcoeulationandsettlaebility、、,.(SRTd8),ESP,,,,ESP,.Fosrter,,SVI,9[].,,,,,.,sRTsVI[’。,’`〕.,sRTsvl.,ESSSVI.,.:(SRTZOd),,,,,ESS,,,SVI.(SRTd8),,EsS,,.,,,.,(),15d.SRT.3(l)ESP.,20d,ESP;d8d,/,20d,/.(2)/,./,ESP.(3),.,.,,,;,,,.(4),;,,d;ESSSvl.「1,,,.,1999,12(5):54572〕,,,.,2x,24(6):4osot。1:【3〕,,,.,20(,23(3):252257【4〕UaoBQ,AllenDG,Dorp1GetaL,SufacreesofSludandhTierRoleinBionoceulationandSetdeability.resReacr^,2l,35(2):339350[5〕WilenBM,JinB,1』IltP,hTeInllueneeofKeyCheealConsittuenstinAetivatedSludonSufacreandlFoceuliatngpee、“r“hcr,2X(J3,37(9):21272139〔6〕LiDH,Gane~ykZJJ,acFot、CtingDispe、ionOfAeitvatlSudge`5.erEn.ionmemresReah,1993,65(3):258263【7〕AndadakisAD,hPiyscalandCheealrtiesofSlud.r。,1993,27,2707714【8JMasseA,Sdi。M,CabassudC,CompsonofsludChaareteirstie。andePformraneeofasubmeedMeeBi~torandanAetivatedSludPessatHihgolSidstentioniT.meerR。acrh,2(,40(12):24052415[9」FOterCF,AetivatedSludSufarcesinRelationothtelSudVOlumeInd“hcr,1971,5(10):562870【10」BarhaonaL,EekenfelderWW,RelationshipBewetenogranieadiandZoneseiVeiociytintheAetivatedSludPorCe`*resReahcr,1984,18(l),914[ChaoAC,eKinhatTM,IueneeofpltessadiInetnsiytonSludcl6cationandhTiekeinCh~tierstie、*rR。a,1979.13:12131221E’FECTOFSOLIDSRETENTIONTIMEONFLOCCHARACTERISTICSzHuhez.l2lLaToZwANcoDnghsengZYAohConghua(1Re~esandEnviounernEnigneeirngInsitutte.EastChinaUinveityofseieneeandeTchnolO,Shallghai,2StateeKyl』OfEnvi~nAqUiateChes,ChineseAeademyofscienees,Beijing,1(X85,2237,ChinaChina)ABSTRACThTeehaareteirstiesofsludgefloesfomredinsequeneingbateheraetorunderdiffeerntsolidsertenitontime(SRT),suehasehemieal(exactrelluarpoleiresubstanees,ESP),physieal(sufareeehagre)andmoho-loigeal(floesizedistirbution,faretaldimension)paarmetesr,weereompaerd.hTeersultsshowedthatSRThadlesseffeetonhteeontentandeomPonentofESP.ZetaPotentialvalueineerasedwithhteartioofoplysacehdetoPortein;uFrthemroer,htemeanllocsizedeeerasediwthSRT.andhtefloesizedistirbutionathigherSRThadamuehmoerunifomridstirbution,aseomPaerdtolowerSR.TFloesexaminedbySEMatdiffeerntSRsTshoweddivesriytinmoholo.wSRTpordueedfloeswihtorughsufareeandloosesturetuer.ontheeon-taryr,hihgSRTpordueedifocswihtsmoohtsufareeanddensesturetuer;hTefloesfomredbydiffeerntSRTshadderntehaareteirsties,andhteniflnueneedthesludgefloceulationandsettlingPeformranee.eKywords:ifoc,extareelluaroplymeiresubstanee,solidsertentiontime,faretaldimension,sizedis-itrbuiton·