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44环境工程学报Vol.4,No.420104ChineseJournalofEnvironmentalEngineeringApr.2010PACTPAM周晓霞孙亚兵*李署冯景伟朱洪标邹婷付玉玲(,,210093)(PACT)(PAM)(PAC),PAC:PAC,,;PAC500mg/L10h,PACTPAM,COD808%,BOD5838%,(AM)842%PACTPAMX7031A16739108(2010)04081705TreatmentofpolyacrylamidewastewaterbypowderactivatedcarbontreatmentprocessZhouXiaoxiaSunYabingLiShuFengJingweiZhuHongbiaoZouTingFuYuling(StateKeyLaboratoryofPollutionControlandResourceReuse,SchooloftheEnvironment,NanjingUniversity,Nanjing210093,China)AbstractPowderactivatedcarbontreatment(PACT)processwasusedtotreatpolyacrylamidewastewaterpretreatedbyattapulgite.Theeffectofpowderactivatedcarbon(PAC)additiononactivatedsludgesystemwasinvestigated,atthesametime,theinfluenceofPACadditionamoun,taerationtimeandhydraulicretentiontime(HRT)ontheremovalrateofpollutantswerealsodiscussed.TheexperimentalresultsshowedthattheaddingofPACcouldincreaseDOutilizationefficiency,improvesludgesettlingpropertyandenhancetheremovalefficiencyoforganicmatter.WhentheadditionamountofPACwas500mg/Landaerationtimewas10h,theremovalratesofCOD,BOD5andAMwere808%,838%and842%,respectively.KeywordsPACTprocess;polyacrylamidewastewater;powderedactivatedcarbon;acrylamide:(WTWER0709):2009-04-07;:2009-06-30:(1985~),,,Emai:lzhouxiaoxia260@163.com*,Emai:lsybnju@163.com(polyacrylamide,PAM)(C2H5NO,acrylamide,AM),50%AMPAM,,[1]2002PAM20!104t/a13!104t/a,200650!104t/a32!104t/a[2]PAM,PAM,PAMPAMPAMAMPAM,PAM100mg/L,,[3]AMAA(IACR,1993),,,IARCACGIH003mg/m3,WHO00005mg/L[1](HPAM)[4~9],PAM[10],PAM(PACT)PAM,PACTPAM,PACT(powderactivatedcarbontreatmentprocess)(PAC),14(DuPont)1972PACT,[11]1PACTFig1ProcessflowdiagramofPACT111PAMPAM,:pH65,TN20mg/L,BOD5380mg/L,COD1100mg/L,AM600mg/L,PAM40mg/L,PAM,,PAMAM,AM0075~015mm12PACT2,10L,6[12]:139L/min,25g/L,03kgBOD5/(kgMLSS∀d),20~30#13COD:;BOD5:BOD220A;pH:;DO:YSIModel52;AM:198nm[13];PAM:[14]141.4.1活性污泥培养和驯化,3d12h,,,[15]2Fig2Schematicdiagramofexperimentalreactor(AM)1.4.2PAC吸附DO实验250mL,PAC(100),YSIModel52,[16]20#;2h1.4.3污泥沉降性能对比实验PAC,PAC0150450mg/L31.4.4有机物降解性能对比实验3(PAC)(AS)(PAC+AS),2,,PAM,COD500mg/L221PAC,,,PAC2.1.1PAC的投加对水中溶解氧(DO)的影响DO3,PAC,;DO,PACPAC8184:PACTPAM(PAC1g/L,2h,DO12~24mg/L,PACDO12~24mgDO/gPAC,1200~2400mgDO),3PACDOFig3EffectofPACdosagesonDOconcentrationinaqueoussolution2.1.2PAC的投加对污泥沉降性能的影响,SVI157mL/g4:PAC,SVI,PAC150mg/L,SVI126mL/g;PAC450mg/L,SVI107mL/g2.1.3PAC的投加对有机物去除的影响1:(PAC)(AS)(PACAS)[17],00009000200027(e,d-1)(PAC+AS)K(AS)(PAC)1.353,(PAC+AS)(PAC)(AS)5,(PAC+AS)COD(PAC)(AS),PAC1AMTable1FirstorderdynamicsmodelofAMkd(d-1)R2PACln(S0/S)=0.0009t0.00090.9773ASln(S0/S)=0.0020t0.00200.9952PAC+ASln(S0/S)=0.0027t0.00270.995822PACPACTPAM,COD500mg/L64h,PACCOD,,PACCODPAC,PAC,PAC,PACCOD6,PAC,PACTCOD,,,,PAC500mg/L81946PACCODFig6EffectofPACdosagesonoutflowCODconcentrations23PACT(HRT)PACT22CODAMTable2EffectofHRTonoutflowCODandAMHRT(h)COD(%)AM(%)1080851580.585.62080.885.7258186.13081.186.22,CODAM,PACT10h,COD80%,AM85%,,,10h24PACTPAM,PAC500mg/L,10h,1hCODBOD5AMpH,20minDO7~97,CODBOD56h,CODBOD58h,CODBOD5COD1100mg/L2109mg/L,808%;BOD5380mg/L615mg/L,838%,8,2hAM,PAM,PAM,PAM,AM,AM,AM,10h,AM9DOFig9ChangeofDOconcentrations8204:PACTPAM600mg/L95mg/L,84.2%,,,AM9DO7CODBOD59DO80min,7CODBOD5,2hCODBOD5,DOPACDOPAM380min,PACDO,DO8,2h,PAM,PAMAM,AM,CODBOD5;2h,AM,CODBOD5,DO,PACDO,,DO9,,DO5.28mg/L,DO6.85mg/LDO500min,783(1)PACPACDO,PAC1g/L,gPAC1.2~2.4mgDO;PAC,PAC450mg/L,SVI157mL/g107mL/g;PAC,(PAC)(AS)(PACAS)K000090.0020.0027(e,d-1),(PAC+AS)(PAC)(AS)(2)PACTPAM:03kgBOD5/(kgMLSS∀d)139L/min25g/L20L/d20~30#PAC500mg/L10h,COD808%,BOD5838%,(AM)842%[1],,,..:,2006[2].PAM:.,2008,(5):52~53[3],,,.NaPAM.,2007,1(7):47~50[4],,,.HPAM.,1997,16(6):560~565[5],,,.(HPAM).,2008,(2):1~9[6],,,..,2006,27(1):151~53[7]KunichikaN.,ShinichiK.Isolationofpolycrylamidedegradingbacteria.J.Ferment.Bioeng.,1995,80(4):418~420[8]KayShoemakeJ.L.,WatwoodM.E.,LentzR.D.,etal.Polyacrylamideasanorganicnitrogensourceforsoilmicroorganismswithpotentialeffectsoninorganicsoilnitrogeninagriculturalsoi.lJ.SoilBio.lBiochem.,1998,30(8/9):1045~1052[9]LentzR.D.,SojkaR.E.,FoersterJ.A.Estimatingpolyacrylamideconcentrationinirrigationwater.J.Environ.Qua.l,1996,25(5):1015~1024[10],,.SBRPAM.(),2003,35(6):75~77[11],.PACT.,2000,20(1):10~12[12]..:,2005.38~43[13],,,..,2005,(1):81~83[14],,,..,2003,41(2):224~227[15],,,..,2008,28(6):1074~1078[16],,,..,1992,13(6):23~28[17].(2).:,1993821