12双酚A与羟基自由基反应不同通路之间确定去离子水和三级处理的废水解决方案

12双酚A与羟基自由基反应不同通路之间确定去离子水和三级处理的废水解决方案BisphenolAreactionswithhydroxylradicals:diversepathwaysdeterminedbetweendeionizedwaterandtertiarytreatedwastewatersolutionsJulieR.PellerÆStephenP.MezykÆWilliamJ.CooperReceived:26July2007/Accepted:2October2007/Publishedonline:15January2009�TheAuthor(s)2009.ThisarticleispublishedwithopenaccessatSpringerlink.comAbstractTheoxidativereactionsofbisphenolA(BPA)withradiolyticallygen-eratedhydroxylradicalswerestudiedinbothdeionizedwaterandtertiarytreatedwastewaters.Indeionizedwater,bisphenolAreactswiththehydroxylradicalbyadditiontothearomaticring,k=6.99109(±0.2)M-1s-1,toeventuallyformtheprominent,long-lived,hydroxylatedintermediateproduct.Incontrast,intertiarytreatedwatersolutions,althoughtheinitialhydroxylradicaladditionreactionoccurs,thehydroxylationisaverted,andadifferentmechanisticpathwayensues.TheremovalconstantforthehydroxylradicalreactionwithBPAis0.45±0.04lmol/kGy,correspondingtoanoveralldegradationefficiencyof76%.KeywordsBisphenolA�Deionizedwater�Hyd