59Vol.5No.920119ChineseJournalofEnvironmentalEngineeringSep.2011510006。8mg/L、CODMn、0.02mg/L1.82mg/L0.46NTU699.6%、71.2%、99.1%80.6%《》GB5749-2006《》CJ94-2005。20%~60%。CODMnTU991.2A1673-9108201109-2013-05StudyonwaterpurificationeffectofwatersupplyBAFincludingbuilt-inpowderedactivatedcarbonLiaoWeiLuShaomingCollegeofEnvironmentalScience&EngineeringSouthChinaUniversityofTechnologyGuangzhou510006ChinaAbstractThroughaddingpowderedactivatedcarbonbeforewatersupplyBAFwaterpurificationeffectofthevariousprocessunitwascomparativelyanalyzedthentheeffectandthebestaddingdosagewasdetermined.StudiesshowedthatactivatedcarbonwaswithheldinthefilterofwatersupplyBAFwhichcansubstantiallyin-creasetheutilizationrateofpowderedactivatedcarbon.Partofunsaturatedactivatedcarbonasabiologicalcar-riercanstillplaytheroleofbio-enhancementeffectwhentheywerebackwashedintothefollow-upconventionaltreatmentsystems.Whenthedosagewas8mg/LtheaveragevaluesofammonianitrogenCODMnturbidityandchromawere0.02mg/L1.82mg/L0.46NTUand6degreesandremovalratesreached99.6%71.2%99.1%and80.6%respectively.YieldingwaterindexreachedtheStandardsforDrinkingWaterQualityGB5749-2006andWaterQualityStandardsforFineDrinkingWaterCJ94-2005.Comparedwiththedosageofthataddingbeforeconventionalprocessthedosageofpowderedactivatedcarbondecreasedby20%~60%.KeywordsBAFpowderedactivatedcarbonwaterpurificationCODMnchroma“”2008ZX07423-002-1-42010-07-062010-08-131987~。E-mailliaowei191@163.comPAC、、1。2、、。3。、CODMn、、+。4CODMn。55。。11.1Q=48m3/hL×B×H=2m×2m×8mA=2m×2m=4m212m/h3.5mHRT17.5min16L×B×H=0.5m×0.5m×4mL×B×H=3m×2.5m×8.5mA=6m2q=8m/h2L×B×H=2m×2m×5mA=7m2。1Fig.1Flowchartofbiologicalpretreatmentandconventionaltreatment1.2pH6.30~7.1717.3~25.9℃32.1~81.3NTU3.72~7.62mg/LCODMn4.97~9.45mg/L20~40。1.3NH3-NCODMnHACH2100N。1.4211+21①+3。。6、BAF。≤5%3257≥900mg/g≥180mg/g≤10%。22.12.1.1CODMn1329~4172418~52。12CODMn9.45mg/L8.13mg/L4.97mg/L4.76mg/L6.55mg/L6.54mg/LCODMn4.83mg/L3.83mg/L25.1%40.9%CODMn2.62mg/L1.92mg/L58.6%70.2%。2CODMnFig.2ChangecurvesofdailyaveragecontentofCODMn23CODMn《》GB5749-2006CODMn<3mg/L《》CJ94-2005CODMn<2mg/L410293CODMnFig.3ChangecurvesofremovalrateofCODMn。、。8CODMn15.2%CODMn12.5%。2.1.212404220193131252019.4%35.5%201135.5%64.5%。4Fig.4Changecurvesofdailyaveragecontentofchroma45《5Fig.5Changecurvesofremovalrateofchroma》GB5749-2006<15。30min917.5min-10-<15。16.1%29%。2.2《》“5~30mg/L”1135、810mg/L67。6BAFFig.6BAFeffluentremovalratesunderdifferentdosages510257Fig.7Sandfiltereffluentremovalratesunderdifferentdosages67BAFBAF3CODMn8mg/L。8mg/L。2.38178.3cm71.5cm7cm。29.2cm。。8mg/L8Fig.8ChangecurvesofdailyaveragecontentofheadlossbeforeandafteraddingPAC10~20mg/L20%~60%。31CODMn12.5%29%。28mg/L、CODMn、99.6%、71.2%、99.1%80.6%。《》GB5749-2006<0.5mg/L、CODMn<3mg/L、<1NTU<15CODMn《》CJ94-2005CODMn<2mg/L。10~20mg/L20%~60%。36.8cm9.2cm。。。1GayleN.DavidC.Influencesontheremovaloftastsandodoursbypowderedactivatedcarbon.WaterSupplyRe-sarchandTechnology2002518463-4742..200531818-20ZhaoZhenyeZhangShifangSunWeietal.Adsorptioncapabilityofpowderactivecarbon.TechnologyofWaterTreatment200531818-20inChinese3..200836121670-1673JinWeiXuZuxinCaoDawen.Studyonremovalofdis-solvedorganiccompoundsinrawwaterbypowderedactiva-tedcarbon.JournalofTongjiUniversityNaturalScienceEdition200836121670-1673inChinese4..2009251865-70LuShaomingYangLiChenYiyunetal.High-rateUBAFforpretreatmentofmicro-pollutedrawwater.China61029Water&Wastewater2009251865-70inChinese5..200423512-14HuangTinglinLiuChengHeWenjieetal.StudyontheremovaloforganicpollutantfromthedrinkingwaterwiththecombinedprocessofpermanganateoxidationandPACabsorption.WaterPurificationTechnology200423512-14inChinese6..200839819-21LiuXunLuShaoming.Effectofmicroorganismsinefflu-entfrombiologicalaeratedfilteronconventionalfeedwatertreatmentprocess.IndustrialWater&Wastewater200839819-21inChinese7..199938-108..200935399-101DingYuLiuXunYangLi.Comparisonofpurificationeffectofsedimentationtankbysludgeamongdifferentrecir-culation.TechnologyofWaterTreatment200935399-101inChinese9..200218447-4910..2006254-56ZhangWenyiZhaiJianpingLiJin.Mechanismoftrea-tingwastewaterusingflyashabsorption.FlyAshCompre-hensiveUtilization2006254-56inChinese11..201036141-437102