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17环境工程学报Vol.1,No.720077ChineseJournalofEnvironmentalEngineeringJul.2007徐文英1WagnerM.2(1.,200092;2.InstitutWAR,TechnischeUniverstitatDarmstadt,Darmstadt,64287,Germany),,,,TQ035;X78111A1673-9108(2007)07-0035-07ExperimentalstudyonelectrochemicaldisinfectionofsecondaryeffluentXuWenying1WagnerM.2(1.TheNationalEngineeringResearchCenterforUrbanPollutionContro,lTongjiUniversity,Shanghai200092;2.InstitutWAR,TechnischeUniverstitatDarmstadt,Darmstadt,64287,Germany)AbstractTheelectrochemical(EC)disinfectionofthesecondaryeffluentfromWiesbadenwastewatertreatmentplant(Germany)andtheWaterPurificationPlantofShanghaiPetrochemicalCorporationwasstudiedseparately.Theresultsshowedthatelectrochemicaltreatmentwasfeasibletodisinfectthesecondaryeffluentinbothcases.Thislowpowerconsumingdisinfectiontechniqueprovedoutforthewastewaterinlaboratorytests,thedisinfectionrateincreasedasthecurrentandprocessingtimeincreased.Keywordssecondaryeffluen;telectrochemicaldisinfection;disinfectionrate:2006-05-08;:2007-04-19:(1971~),,,,E-mai:linna_xu@hotmai.lcom,,,,,,[1,2],,THMs,[3],DSA,,,OHOH2O2O3;,ClO2HClOClO-,,,,;H2O2[4,5],[6,7],,,,,,30min,,,,1[3]IWAR,11.1,,COD~30mg/L,NH4-N1mg/L,SS2mg/L,,HOClOCl-O#OHH2O2O3,CODNH4-NSS,,THMHAA(C=1600~1800Ls/cm),,,(pH=612~712),Cl2,HOClOCl-,2pH,pH,OCl-,HOCl;pH,OCl-,HOClpH6,HOCl100%;pH=715,HOClOCl-HOClOCl-40~80pH[8]20045~8:COD=4612mg/L,NH4-N=2~3mg/L,BOD5=2mg/L,SS=7172mg/L,pH=7155,C=2240Ls/cm1.2,3A,15VNewtec,DSA,1mm,5mm2,;3,,300cm2015L,20mmAquametreBase,lBB65WTWpH197DSA,2,;3,1mm,5mm()1.3:48h;:Microquant1.14801.0001ChlorineTest(011~2mg/L)1.411Fig.1Sketchofexperimentaldevices25L,,,,,2min,,2min,,,(),1h24h,1.5:C=U@I@t015@3600(1)U(V);I(A);t(s);015(L)367:22.1Cl-Cl-40~60mg/L,Cl-Cl2HClO12,,,j,,,,,,,,,,,,,1(1)Table1ElectrochemicaldisinfectionoftheeffluentsfromWiesbadenWastewaterTreatmentPlant(1)t(s)U(V)I(A)j(mA/cm2)(kW#h/m3)(mg/L)(%)(1h)20.061.123.70.070.1596.136.51.274.20.090.2596.9371.474.90.110.3597.4781.725.70.150.497.7313.68.51.826.10.120.2596102.327.70.180.497.2112.739.10.230.4597.612.73.2911.00.320.597.879.412.83.4011.30.230.3597.47:pH~7105,750/mL,97133%,20/mL,2(2)Table2ElectrochemicaldisinfectionoftheeffluentsfromWiesbadenWastewaterTreatmentPlant(2)t(s)U(V)I(A)j(mA/cm2)(kW#h/m3)(mg/L)(%)(1h)(%)(24h)22.230.260.90.010.182.6177.3940.592.00.030.159289.365.51.123.70.080.2597.2297.046.51.414.70.110.3598.2698.3517.650.943.10.050.1589.5587.3961.324.40.080.296.9696.7871.675.60.110.3598.3598.5282.097.00.160.599.1399.6512.571.665.50.080.1592.0986.0982.046.80.110.296.7896.52102.809.30.190.3598.1798.26113.1710.60.240.598.9699.57:pH~6128,1150/mL,98126%,20/mL,3713(3)Table3ElectrochemicaldisinfectionoftheeffluentsfromWiesbadenWastewaterTreatmentPlant(3)t(s)U(V)I(A)j(mA/cm2)(kW#h/m3)(mg/L)(%)(1h)(%)(24h)11.571.565.20.070.1595.695.0781.906.30.10.296.5396.5392.297.60.150.2597.0797.07102.598.60.170.3598.498.679.771.575.20.060.1595.4795.281.886.30.080.2596.896.67102.638.80.140.3098.498.8123.2710.90.210.499.299.3:pH~6188,750/mL,97133%,20/mL,4(4)Table4ElectrochemicaldisinfectionoftheeffluentsfromWiesbadenWastewaterTreatmentPlant(4)t(s)U(V)I(A)j(mA/cm2)(kW#h/m3)(mg/L)(%)(1h)(%)(24h)37.540.561.90.050.1597.4797.1150.882.90.090.398.1999.0461.244.10.160.499.1699.646.881.856.20.060.194.2293.13102.518.40.10.1597.2397.11123.4411.50.160.2597.4797.71:pH~7102,830/mL,97159%,20/mL,5(5)Table5ElectrochemicaldisinfectionoftheeffluentsfromWiesbadenWastewaterTreatmentPlant(5)t(s)U(V)I(A)j(mA/cm2)(kW#h/m3)(mg/L)(%)(1h)(%)(24h)7.992.337.80.090.294.5795.1110.52.869.50.130.2596.5296.7411.53.2510.80.160.3597.8398.046.581.976.60.060.185.4388.26102.699.00.10.294.3595.1112.63.6112.00.160.3597.597.61:pH~6146,920/mL,97183%,20/mL,,1h,82161%~99116%,20/mL[9]0135mg/L,24h,387:0135mg/L,,0135mg/L0135mg/L,,2.22~4,,,,,t=24s,6mA/cm2,100/mL[10],,,,011kW#h/m3,,,,6~8h,,,,j=6mA/cm2,104/mL2(1)Fig.2ElectrochemicaldisinfectionoftheeffluentfromtheWaterPurificationPlantofShanghaiPetrochemicalCorporation(1)j=6mA/cm2,518@104/mL3(2)Fig.3ElectrochemicaldisinfectionoftheeffluentfromtheWaterPurificationPlantofShanghaiPetrochemicalCorporation(2)391j=6mA/cm2,8@104/mL4(3)Fig.4ElectrochemicaldisinfectionoftheeffluentfromtheWaterPurificationPlantofShanghaiPetrochemicalCorporation(3)32.1,0135mg/L,0135mg/L,t3,,6:6Table6TheoperatingcostofdesinfectionofthesecondaryeffluentfromWiesbadenWastewaterTreatmentPlantt(s)6.5~9.711.5~17.620~22.2(kW#h/m3)0.180.140.116,,HClO,Cl-Cl2,CODSSNH4-N,,,,(),,10~30mg/L,,,COD50~100mg/L,Cl2,011kW#h/m3,t=2212s,417mA/cm2,0111kW#h/m3(6),20/mL,t=24s,6mA/cm2,100/mLt,,C,,,,100/mL,015/m3,5/m3,,,015/,0115/m3,015/m3[11],,,,,,,4(1),3~15V615~3715s,407:82161%~99116%(~50W),(2)0.35mg/L(3)CODSSNH4-N,,,(),,CODSSNH4-N,011kW#h/m3,,,100/mL[1]KraftA.Electrochemicalwaterdisinfectionpart1:Hydro-chloriteproductionfromverydilutechloridesolutions.JournalofAppliedElectrochemistry,1999,29:861~868[2]PatermaraxisG.,FountoukidisE.Dinsinfectionofwaterbyelectrochemicaltreatment.Wat.Res.,1990,24(12):1491~1496[3],,..,2002,3(12):46~50[4],..,2001,32(1):6~9[5],,,..,2004,5(4):23~26[6],,..##,2001,