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汤红妍1,李国芝1,李铭2,魏学锋1(1.,471003;2.,430010):FeCl3Al2(SO4)3PACPFSPAM,,(PFS),CODCr,98.29%66.36%;233g/m3,0.4194/t:;;:X703.1:A:167121556(2008)0220064205*EnhancementofPrimaryTreatmentinMunicipalSewagebyChemicalCoagulaitonTANGHong2yan1,LiGuo2zhi1,LiMing2,WeiXue2feng1(1.SchoolofChemicalEngineeringandPharmacy,HenanUniversityofScienceandTechnology,Luoyang471003,China;2.Central2SouthernChinaMunicipalEngineeringDesign&ResearchInstitute,Wuhan430010,China)Abstract:Thispaperstudiestheenhancementofprimarytreatmentinmunicipalsewagebychemicalcoagu2lation.Severalkindsofcoagulantarechosenintheexperiment,includingFeCl3,Al2(SO4)3,PAC,PFSandPAM.TheoptimalcoagulantisconfirmedtobePFSthroughthecomparisonofexperimentalresultandexpense.TheratesofremovalofturbidityandCODare99.2%and48.1%,thedosageaddedtothewastewateris233g/m3andtheexpenseoftreatmentis0.4194yuan/t.Keywords:municipalsewage;primarytreatment;coagulant0,,;,,,,,,[1],,[2],,,[3],,,,,15220086安全与环境工程SafetyandEnvironmentalEngineeringVol.15No.2Jun.2008*:2007210211:2007212211:(1979)),,,,E2mail:thy0324@126.com11.1,,,,,1.2COD(5B23C,);(WGZ2200,);pH(PHS2298,);(ZR426,)1.3CODCr;,;CODCrCOD,CODCrCODCr1.4,,(FeCl3)(Al2(SO4)3)(PFS)(PAC)(PAM)300mL,FeCl3PFSA12(SO4)3+PAMPAC+PAM,,CODCr,2,11Table1Primarysewagequality/NTUCODCr/(mg#L-1)/pH432170.4408.132.1Al2(SO4)310g/LAl2(SO4)3,6300mL,3min,10min,30minCODCrpH,22Al2(SO4)3Table2ResultsofsewagetreatmentbyaddingAl2(SO4)3Al2(SO4)3/mL/NTUCODCr/(mg#L-1)pH/%CODCr/%1510.3091.257.4496.5446.45276.5086.427.3697.8249.28385.9084.217.1198.0250.58495.6083.597.2098.1250.945104.5278.267.2098.4854.076116.6080.567.2497.7952.72,,,,,:CODCrAl2(SO4)3,,10mL;11mL,Al2(SO4)3,,;10g/LAl2(SO4)3,10mL2.2FeCl310g/LFeCl3,6300mL,,3:(FeCl3),,pH,CODCr;FeCl3,,9mL,;CODCr,,,,8mL,;,4,5,CODCr4,45,8mLFeCl3652:2.3PAC10g/LPAC,6300mL,,43FeCl3Table3ResultsofsewagetreatmentbyaddingFeCl3FeCl3/mL/NTUCODCr/(mg#L-1)pH//%CODCr/%1315.6381.267.244595.5739.992510.273.747.324596.4645.54376.084.277.214597.9237.76484.764.717.255098.3752.21592.7669.227.235099.0448.886102.9772.237.35598.9746.654PACTable4ResultsofsewagetreatmentbyaddingPACPAC/mL/NTUCODCr/(mg#L-1)pH/%CODCr/%137.2094.817.7197.5847.27255.3291.807.6398.1448.94375.1093.307.6098.2848.11485.0688.797.5698.3250.62592.8079.767.4799.0655.646104.2485.787.4698.5752.29PAC,,,:PAC,9mL,;CODCr,,7mL,,9mL,10mL;,9mLPAC2.4PFS10g/LPFS,6300mL,,55PFSTable5ResultsofsewagetreatmentbyaddingPFSPFS/mL/NTUCODCr/(mg#L-1)pH//%CODCr/%132490.297.565094.4445.442516.172.237.364096.2756.36377.4055.687.272598.2966.36488.3063.207.143098.0861.81595.9058.697.182098.6364.546107.1064.717.233098.3660.90,PFS;CODCr,7mL,8mL;563,,3CODCr;3PFS,10g/LPFS7mL,2.5Al2(SO4)3+PAM,,,Al2(SO4)3PAM10g/LAl2(SO4)31g/LPAM,6300mLAl2(SO4)3,;PAM,,,pHCODCrAl2(SO4)3PAM,6,,66安全与环境工程156Al2(SO4)3+PAMTable6ResultsofsewagetreatmentbyaddingAl2(SO4)3andPAMAl2(SO4)3+PAM/mL/NTUCODCr/(mg#L-1)pH/%CODCr/%14+39.5087.287.4696.4350.4125+37.5094.817.4297.1846.1335+54.8084.277.3898.2052.1246+65.1093.307.2698.0846.9957+63.90127.97.3098.5327.3368+64.1082.777.2098.4652.976,pH,5,CODCr,27.33%;36,CODCr,,3;10g/LAl2(SO4)31g/LPAM,5mL5mL2.6PAC+PAM10g/LPAC,1g/LPAM300mL,PACPAM,,77PAC+PAMTable7TheresultsofsewagetreatmentbyaddingPACandPAMPAC+PAM/mL/NTUCODCr/(mg#L-1)pH/%CODCr/%15+41.7987.287.5998.414226+41.5282.777.5498.654535+52.4087.287.5197.864246+51.9282.777.4398.294558+51.2087.287.4498.934269+51.8282.777.5198.3845,,,,7:CODCr,,;PAM,PAC,,PAC,PAM;,PAC;,2,10g/LPAC1g/LPAM,6mL4mL3,,,300mL,,1m3898(/t)Tabel8Marketpriceofseveralcoagulants(yuan/t)PFSAl2(SO4)3FeCl3PACPAM180070036001600170009,,(PFS)CODCr,300mL7mL,CODCr,98.29%66.36%,PFS1800/t,233g/m3,0.4194/m3,(PFS),,,(PFS)672:9Table9Expensesofvariouscoagulants300mL/mL/%CODCr/%/(#t-1)/(g#m-3)/(#m-3)Al2(SO4)31098.4854.077003330.2331FeCl3898.3752.2136002670.9612PAC999.0655.6416003000.4800PFS798.2966.3618002330.4194Al2(SO4)3+PAM5+598.2052.12700+17000167+170.4059PAC+PAM6+498.6545.001600+17000200+130.54104(1),,;,,(2),,(PFS),CODCr,98.29%66.36%PFS1800/t,,233g/m3,0.4194/t:[1],,.[J].,2001,23(1):46-49.[2],,.[J].,2000,26(12):26-28.[3],.[J].,2004,27:26-29.(63)99.76%74.29%,G3Cr(VI),,S1G3Cr(VI)99%3(1)S1G1G2G3,,303.14mg/g318.80mg/g341.43mg/g374.27mg/g(2),:(3)pH,S1Cr(VI),G3Cr(VI):[1],,.[J].,1999,20(6):56-59.[2],.[J].,2006,22(5):456-461.[3]Andrey,B.,C.L.David,J.B.Teresa.H2Sadsorption/oxida2tiononadsorbentsobtainedfrompyrolysisofsewage2sludge2de2rivedfertilizerusingzincchlorideactivation[J].Ind.Eng.Chem.Res.,2001,40(16):3502-3510.[4]Xiaoge,C.,S.Jeyaseelan,N.Graham.Physicalandchemicalpropertiesstudyoftheactivatedcarbonmadefromsewagesludge[J].WasteManagement,2002,22:755-760.[5]Otero,M.,F.Rozada,L.F.Calvo,etal.Eliminationoforgan2icwaterpollutantsusingadsorbentsobtainedfromsewagesludge[J].DyeandPigments,2003,57:55-65.[6]Lu,G.Q.,J.F.Low,C.Y.Liu,etal.Surfaceareadevelopmentofsewagesludgeduringpyrolysis[J].Fuel,1995,74(3):344-348.68安全与环境工程15