电子束辐射技术降解水中的致臭底物翟春宏朱永斌

121．3003812．310018CH3S－C6H5pH59。、9．90±0．13×109、3．1±0．1×1083．24±0．08×109L/mol·s。pH5pH9。pH9、pH5。X703C1000－4602201402－0105－04ElectronBeamＲadiationTechnologyforDegradingOdorousSubstrateZHAIChun-hong1ZHUYong-bin21．TianjinCapitalEnvironmentalProtectionGroupCo．Ltd．Tianjin300381China2．HangzhouTianchuangWaterCo．Ltd．Hangzhou310018ChinaAbstractAnewelectronbeamradiationtechnologythatcanremovalthioanisolemethylphenylsulfideCH3S-C6H5fromaqueoussolutioneffectivelywaspresented．ThesubstratedegradationdataatpHof5and9wereintroduced．Thetotalrateconstantsofreactionofthioanisolewithhydroxylradicalshydratedelectronsandhydrogenatomsweremeasuredusingdynamicsmodelpredictingtheremovaleffi-ciencyandthepulseradiolysistechnique．Theirrespectivevalueswere9．90±0．13×1093．1±0．1×108and3．24±0．08×109L/mol·s．Comparingthemodelpredictionsandtheexperimen-talresultstheresultswereconsistentwhenpHvaluewas5buttheremovalratewouldbeoverestimatedwhenpHvaluewas9．Otherpurifyingagentwhichappearedfollowingthereactionwithhydroxylradi-calshydratedelectronsandhydrogenatomsatpHof5causeddecreaseintheremovalefficiency．ButthisphenomenondidnotappearwhenpHvaluewas5．Keywordselectronbeamradiationthioanisoleremovalrate。。、、、1。2。·501·30220141CHINAWATEＲ＆WASTEWATEＲVol．30No．2Jan．2014———。、、、、34。CH3S－C6H5TA。TA5。1Aldrich99%2－－2－FisherSci-entificcertified。Millipore－quality19MΩTOC120μg/L。6TB－8/16－1S8MeV5～50s1～3μmol/L。。、He－aqH2、H2O2Haq+。GG100eV。N2Ok2=9．1×109L/mol·s·OH。t－ButOH·OHHClO4pH1。17。e－aq+H→+·H1EBＲF。1．5MeV、。114cm0．4cm。0～50mA0～8kGy0～800krad。———ＲTDs。ＲTDs。85μmol/L170μmol/L。TA。TA、。·OH、e－aq、·H。GOH－H+pHpH。pH、、、DOC。、。0．091s。。2TA·OHTA1×10－4～10－3N2O310、365、530nm。IoeleTA·+310530nm·OHTATAOH·365nm。SO·+4TAIoele·OHTAH。α－260nm。TA。310、365nm。310nm365nm。Ioele310nm/365nm=9200∶500310nm365nm。TAH365nm。·OHHN2O10%。t－ButOHN2O97%·OHt－·601·302．watergasheat．comButOH93%·HTA。H。365nm。365nm310/530nm365nm。CH33COH/TA。365nm。310、530nm·OHTAkobsTA+·OH=∑kn。530nm—。TA、N2TAt－ButOH·OH。－。TA。TA。LUMOπ*。TA。TAN2、、pH1．0TA。·OHt－ButOH。3．5μs365nm。260、310、530nm。3．2%·OHTA。365nm。365nm。250nm300nm260nm。。。365nmk14/k13。－－365nm/。TAk141．01×108L/mol·s3．24±0．08×109L/mol·s。pH5pH9TATATA。pHpH5pH9。pHTApH5TA9．40mg/LpH9TA10．20mg/L。pH9。40～60mg/L。pH9/1∶4。·OHTA。3%、·OH17%/。pH5pHCO2pH5TA。MAKSIMA－CHEMIST、TA·OH、·H。pH5pH9TA。pH。pH9。Wallace＆TiernanDpDpH9。3TA。TA·OH、·H·701·．watergasheat．com302。pH5pH9TA。pH9NH2Cl·OH、·HpHTA。1．J．201335181－8599．2．J．2007351－52．3．β－J．200993050－55．4．α－J．2013291199－204．5．－90—J．19861122－25．6ZhangGYLiDH．Studyonpersonalneurondosimetry－bubbledetectorsJ．AnnuＲepChinaInstAtEnergy2004171－72．7．D．2010．1978－。[e-mail]2013－09－30··———“2013”20131215“2013”“”“2013”。、。“”“”8、500。、、、、、。5“”。＜ITT＞·801·302．watergasheat．com