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37820088AppliedChemicalIndustryVol.37No.8Aug.2008:2008205224:2008207206:(1983-),,,,,:13695248954,E-mail:lzqling@yahoo.com.cn2,,(,510006):2(BAF),,pH,COD,COD6080mg/L,55.56mg/L,BAF1.5h,COD30mg/L,:;;;:X703.1:A:1671-3206(2008)08-0917-04Advancedtreatmentofpetrochemicalwastewaterbyozonizing2biologicalaeratedfilterprocessesLINGZhu2qin,WANGXiao2jun,WANGKai2yan(SchoolofEnvironmentalScienceandEngineering,SouthChinaUniversityofTechnology,Guangzhou510006,China)Abstract:Theozonizing2biologicalaeratedfilter(BAF)processeswereusedtoadvanced2treatthewastewaterinonepetrochemicalfactoryinGuangdong.Theozonizingwasusedtoimproveitsbiodegrada2tion.TheinfluenceoftheoriginalpH,thedosageofozoneandcatalystswerediscussedinthispaper,aswellasthedifferenthydraulicretentiontime(HRT)ofBAF.Theresultshowedthat:whentheinfluentqualitieswereCODabout6080mg/L,thedosagesofozonewas55.56mg/L,andtheHRTofBAFwas1.5h,theeffluentqualitieswereCODlessthan30mg/L,reachedthecriterionofwaterreusingstandard.Keywords:petrochemicalwastewater;ozone;BAF;advancedtreatment,,1t3050t,,,,,,,,,,,,,,,,,COD,(BAF),,,11.1,COD1000mg/L,,COD,COD6080mg/L,,pH=61.2,,1OZ23G,,1g/h,37,400mL,(20%)1Fig.1Diagramofozoning2biologicalaeratedfilterprocess,2PVC,10cm,1.4m,25mm512Fig.2Diagramofbiologicalaeratedfilter1.3pHCOD[1][2],KI[1],[3]22.12.1.1pH400mL,pH4,6,8,1g/h,5min,1min,33pHCODFig.3CODremovingefficiencybythedifferentpHvalue3,pH=4pH=8,COD41.67mg/L,1min,;,COD,,COD,,,COD,COD,COD[425]pH=6,,COD125.01mg/L,3min,COD30mg/L,,:,pH,,;pH,OH-,OH[627],pH,,CODpH,pH=4,COD,pH,,2.1.2COD3,pH=4,12min,083.34mg/L,,1.2L,1g/L,15min,0,1,2,3,8198:24,6,9,12,15min,COD,COD,44CODFig.4CODremovingefficiencybythedifferentamountofozone4,055.56mg/L,05min,,COD,,,COD,55.56mg/L,5min,,COD,41.33mg/L55.56125.01mg/L,59min,,COD,,COD,125.01mg/L,COD,COD58.67mg/L,125.01mg/L,COD,,COD4,55.56mg/L,COD,2.1.3pH4.0,400mL,1g/h,40mg,40mg,1.33g,1.67mL30%5min,1min,,COD,55CODFig.5CODremovingefficiencybythedifferentcatalysts,,O3/H2O2O3/,COD,,CODO3/KMnO4O3/MnO2,COD,,,,OH,,OH[829],,H2O2Mn(),,O3/H2O2O3/,,,,COD,,COD,,2.222.2.1,,,,[10],COD6919376CODFig.6Biodegradabilitycurveofinfluentandeffluentbyozoneoxidation,,55.56mg/L,,CODB/COD0.350.66(CODBCOD),CODBBOD5[11],BOD5/COD0.200.40,2.2.22,pH4,,,pH7,40min,,COD,77Fig.7EffectofretentiontimeofBAFontreatmentresult7,(HRT),,00.5h,CODHRT0.5h1.0h,COD38.98%53.71%1.5h,COD30mg/L,57.92%3(1),pH=4,,COD52.7%(2),HRT=1.5hCOD28.46%;,,HRT=1.5h,COD57.92%,30mg/L(3)2,55.56mg/L,1.5h,51,COD6080mg/LCOD30mg/L:[1].[M].4.:,2002:2162219.[2],.[M].:,2003:126.[3]BaderH,HoignJ.Determinationofozoneinwaterbytheindigomethod[J].WaterResearch,1981,15(4):4492456.[4]AnjaKornmller,UdoWiesmann.Ozonationofpolycycli2caromatichydrocarbonsinoilwateremulsions:masstrans2ferandreactionkinetics[J].WaterResearch,2003,37:102321032.[5],,.[J].,2005,6(2):59261.[6]IsilAkmehmentBalcloglu,Merih;tker.Treatmentofphar2maceuticalwastewatercontainingantibioticsbyO3andO3/H2O2proceses[J].Chemophere,2003,50:85295.[7],,,.[J].:,2002,30(2):83286.[8]WangXiaojun,GuXiaoyang,LinDexian,etal.Treatmentofacidrosedyecontainingwastewaterbyozonizing2bio2logicalaeratedfilter[J].DyesandPigments,2007,74(3):7362740.[9]KarimiAA,RedmanJA,GlazeWH,etal.EvaluatinganAOPforTCEandPCEremove[J].AmWaterWorksAs2soc,1997,89(8):41253.[10]ZingU,AndrewHong,WavrekDavid.Chemicalbiologicaltreatmentofpyrene[J].WaterResearch,2000,34(4):115721172.[11],,.()[M].:,2000:86.029