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1,1,2,3(1.,300381;2.,300074;3.,067000):,,BOD5CODNH3-NSSTP,,:;;;:X703:C:1000-4602(2009)23-0069-03ComprehensiveAnalysisonUsingChlorineDioxideasDisinfectantforEffluentfromWastewaterTreatmentPlantZHANGBao2xiang1,ZHAOXi1,ZHANGYa2li2,GONGXiu2xue3(1.TianjinCapitalEnvironmentalProtectionGroupCo.Ltd.,Tianjin300381,China;2.NorthChinaMunicipalEngineeringDesignandResearchInstitute,Tianjin300074,China;3.ChengdeMunicipalWastewaterTreatmentCo.Ltd.,Chengde067000,China)Abstract:TheproductiveapplicationofClO2asadisinfectantfortheeffluentfromlarge2scalemu2nicipalwastewatertreatmentplantswasintroduced.TheinfluenceofClO2withgooddisinfectioneffectonBOD5,COD,NH3-N,SSandTPintheeffluentwasinvestigated.TheadvantagesofusingClO2asdis2infectantfortheeffluentfrommunicipalwastewatertreatmentplantsanditsimprovementeffectoftheef2fluentqualitywereevaluated.SothisisabeneficialtestforthepopularizationandapplicationofClO2inotherlarge2scalemunicipalwastewatertreatmentplantsinChina.Keywords:wastewatertreatmentplants;chlorinedioxide;disinfection;fecalcoliform1:,,,,,,,,,[13]2,,,,,BOD5CODNH3-NSSTP211105106/L,(GB189182002),104/L6L,62523200912CHINAWATER&WASTEWATERVol.25No.23Dec.200910/9104/L,99%,121Fig.1RemovalefficiencyoffecalcoliformbydifferentconcentrationClO22Fig.2EffectofcontacttimeonremovaloffecalcoliformbyClO2,11Tab.1ResultoforthogonalexperimentaboutClO2disinfection/(L-1)ClO2/(mgL-1)/s/%4.651062.80577199.991.051062.84377599.986.001051.90577699.971.101062.86577799.989.201072.86877899.995.451052.90178199.963.351052.91778399.676.001052.92078399.979.201052.92078599.972.451052.95478699.79,,%,,,,2.8052.954mg/L771786s21221211BOD5BOD510%20%,,BOD5,BOD5BOD5,BOD5,21212COD,COD:COD,;COD,,:COD,,,Cl-,CODCl-,CODCOD,COD2.7022.920mg/L777793s,,22,COD2.8652.920mg/L777783s2CODTab.2ResultoforthogonalexperimentaboutCODremovalefficiencyClO2/(mgL-1)/s/%2.70285444.52.77191102.77886419.42.805771-92.843775-702.84787416.752.8658762365662523(Continued)ClO2/(mgL-1)/s/%2.86877802.901781252.91778338.752.92078369.5213NH3-N:NH3-N,100%,,NH3-N214SS:SS,20%SS,,SSSS,215TP,TP,,,TP3,106/L,104/L,2.8652.920mg/L,777783s,BOD5COD,SSTP:[1],.[M].:,1992.[2].[M].:,1997.[3].[M].:,2002.E-mail:zhang_bx@tjcep.com:2009-09-07(STS)()1;,,;,;,EHS;;2(),3,,;35;;,;;4:SunnyWu,E-mail:swu@severntrentservices.com():252317