臭氧生物活性炭工艺处理饮用水时各阶段的特点

\aa\\\aaO!!!!#$6%%$1.5~2S$%$1~2mg/L$l~4min%$0.2~0.4mg/L$l0min%500~l00070%~86.7%!%%%!Rl23.6!A!!1009-2455200504-0007-03Characteristicsofphasesintreatmentofdrinkingwaterusingozonation-biologicalactivatedcarbonprocessSONGWen-taolaPANXiao-ii2(1.BeijingGeneralResearchInstituteofMiningandMetallurgy,Beijing100044,China;2.BeijingGuodianFutongScienceandTechnologyDeuelopmentCo.ltd,Beijing100055,China)Abstract:Appiicationstatusandcharacteristicsofphasesinozonation-bioiogicaiactivatedcarbonprocessinciude:ozonegenerationsystem,ozonetaiigasdecomposingsystem,preozonationandpost-ozonation,andbioiogicaiactivatedcarbonfiiterwereeiaborated.Itisindicatedthat:oxygenwasusedasfeedstocktoincreasetheconcentrationofozoneinozonegenerationsystem,themassfractionofozonereachedabout6%;forthereactionspeedofozonetaiigasdecomposingbyeiectricaiheatingtechnoiogywasfast,ozonetaiigascanbetotaiiydecomposedin1.5-2seconds,itshouidbethefutureemphaseoftheappiicationofozonetaiigastreatmenttechnoiogyinwaterpiant;inpreozonationphase,ozoneusuaiiybeaddedatasingiepointbystaticmixtureorportacei,thedosagewasl-2mg/L,thecontacttimewasl-4min9Whiie,inpost-ozonationphase,ozoneusuaiiybeaddedwithaformofmicrobubbieatseveraipointsbymicroporeaerationpiate.Thesurpiusofozoneinwaterwascontroiiedintherange:0.2-0.4mg/Lacontacttimewasiongerthan10min;Usingbioiogicaiactivatedcarbonfiitertotreatbenzenecompoundandhumuswhichreiativemoiecuiarmasswasintherange:500-1000,theremovairatereached70%-86.7%.Keywords:drinkingwater;advancedtreatment;ozoneoxidation;bioiogicaiactivatedcarbon1a21.a10004492.a100055!2004-11-029!2005-05-10INDUSTRIALWATER&WASTEWATERVoi.36No.4Aug.a20057INDUSTRIALWATER&WASTEWATERVol.36No.4Aug.?2005\????O?\\O\\\O!?O\9?l%99O???6%99l]O??O??O0.3mg/LOOO?O?O99O??CO2COO????O?OO300C?lmin92%~95%9350C?0.04S?l.5~2S?O???O2]OO#O?9\999999\O??OC4.9~9.8kpaD?O??O?l~2mg/L??l~4min??3]O6m?0.75mO??0.lmO?ll05?l000~3000ll04~ll054]OUV254?50%?5%OO$O?9\\9?9O??90%Ol0min?0.2~0.4mg/LO6m?0.758m2~3280%~50%20%~50%50%380%~40%10%~30%10%~30%30%30%40%51.5~2.5mg/LH2OCO26!95%500~100025%770%~86.7%500300088~10minCODMn12~15min910a2~2.5m2m2.5m!l.J.20032995-9.2.J.20032923-6.3.J.2001320-23.4.J.200021429-33.5.J.200319976-78.6.J.199730275-79.7SummersRScottPVRobeitS.ActivatedcarbonadsorptionofhumicSubstancesJ.CoIIoidInterfaceSci19881222367-381.8.J.20012351-5.9.J.2003291313-16.![e-mail]9