ClO2气液分离纯化器在饮用水消毒处理中的应用

ClO2250101+。。TU991C1000－4602201401－0079－03ApplicationofChlorineDioxidePurifierwithGas-liquidSeparationforDrinkingWaterDisinfectionDONGYanFUShi-shengXUEPing-zhengJINXian-wangShandongShandaWitScienceandTechnologyCo．Ltd．Jinan250101ChinaAbstractThesourcesandcontrolofinorganicby-productsfromchlorinedioxidedisinfectionweresummarized．Theapplicationeffectofchlorinedioxidepurifierwithgas-liquidseparationforsupportingsodiumchlorateandhydrochloricacidprocesseswasintroduced．Thepurifiercouldseparatechlorinedi-oxideandchlorinefromthereactionliquidwhichsolvedtheproblemofexcessivesolutionacidityandcouldeffectivelyavoidsurplusrawchlorateenteringthewaterduetoincompletereaction．Keywordschlorinedioxidedisinfectioninorganicby-productpurifierresidualliquidfromreactionchlorate、、1～3。《》GB5749—20060．7mg/L。。1。。70%。Chang110mg/L0．42mg/L3．88mg/L。。2NaClO3+4HCl→2ClO2+Cl2+2H2O+2NaCl1·97·30120141CHINAWATEＲ＆WASTEWATEＲVol．30No．1Jan．2014NaClO3+6HCl→3Cl2+3H2O+NaCl2Ｒ5NaClO3+2．4HCl→0．9ClO2+0．75Cl2+1．2H2O+NaCl333%31%1∶1ClO－3。＜5%。。、、。245。。0．7mg/L。+、、、。3。。3.1、、。3.2、、。4、。1。1Fig．1Flowchartofoperation72hpH。12．7L/h、25m3/h1、2。15．39mg/L90%66．09%pH4．81。0．96mg/L90%62．08%·08·301．watergasheat．com4．01%pH6．48。1Tab．1Disinfectanttestingdatawithoutseparationofreactionmixture/mg·L－1ClO2ClO－2Cl2ClO－3/%/g·h－1/%/%175．59076．8516．690．986891．2990．0165．25280．96084．2619．470．967429．6288．3570．35377．08078．2716．130．987024．7690．3566．51474．08073．9418．361．006719．2689．0163．62575．96075．0816．691．016871．3790．0165．06672．96075．0813．910．976674．1291．6863．19778．71077．2114．461．027105．4391．3467．28879．33080．413．910．997225．9591．6868．42976．31074．378．91．036876．6391．6865．1176．78077．2715．390．996979．8390．8866．09pH4．81。2Tab．2Disinfectanttestingdatawithseparationofreactionmixture/mg·L－1ClO2ClO－2Cl2ClO－3ClO2/%/g·h－1/%172．33073．3100．996588．4562．38272．96070．92．781．036569．6262．20374．28075．9700．986783．1664．23472．02071．081．391．016512．3261．66570．06071．0800．996383．4560．44670．1074．0800．956461．0861．18772．59072．852．781．006594．0462．44872．07072．921．670．996561．6062．13971．96073．0800．986558．3762．1072．040．0072．810．960．996556．9062．08pH6．48。5pH。1．J．2011271765－67．2．CODJ．2012282385－86．89．3．J．2012276－79．4．D．1999．5VeschettiECittadiniBMarescaDetal．Inorganicby-productsinwatersdisinfectedwithchlorinedioxideJ．MicrochemJ2005791/2165－170．1981－。[e-mail]2013－08－22·18·．watergasheat．comClO2301