24454.污泥基活性炭催化臭氧氧化去除水中對氯苯甲酸效能與機(jī)理研究

1、獨(dú)創(chuàng)性聲明本人聲明所呈交的論文是我個人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。盡我所知，除了文中特別加以標(biāo)注和致謝的地方外，論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果，也不包含為獲得北京林業(yè)大學(xué)或其它教育機(jī)構(gòu)的學(xué)位或證書而使用過的材料。與我一同工作的同志對本研究所做的任何貢獻(xiàn)均己在論文中作了明確的說明并表示了謝意。關(guān)于論文使用授權(quán)的說明本人完全了解北京林業(yè)大學(xué)有關(guān)保留、使用學(xué)位論文的規(guī)定，即：學(xué)校有權(quán)保留送交論文的復(fù)印件，允許論文

2、被查閱和借閱；學(xué)?？梢怨颊撐牡娜炕虿糠謨?nèi)容，可以采用影印、縮印或其他復(fù)制手段保存論文。(保密的論文在解密后應(yīng)遵守此規(guī)定)ABSTRACTTheEffectandMechanismStudyontheRemovalofp—ChlorobenzoicAcidbyCatalyticOzonationwithSludge—corncobActivatedCarbonMastercandidate：LiLu(EnvironmentalScie

3、nce)DirectedbyProfessorZhangLiqiuABSTRACTThepurposeofthisstudywastodiscussthecatalyticactivityandmechanismofsludgecorncobactivatedcarbon(SCAC)preparedfromsewagesludgeandcorncobwithZnCl2asactivationregentintheozonationofp

4、chlorobenzoicacid◇一CBA)Forcomparisonpurposes，experimentsofadsorptiononSCAC，singleozonationandSCACcatalyticozonationprocesswereconductedwithpCBAasthemodelorganicpollutantTheinfluencesofozoneconcentration，catalystdosage，in

5、itialconcentrationofP—CBAandaqueouspHwerediscussed，tooTheeffectofradicalscavengerontheremovalofp—CBAbycatalyticozonationwithSCACwasalsoinvestigatedForstudythereactionmechanism，theexperimentsofozonationinthepresenceofSCAC

6、，threecommercialactivatedcarbonsandmodifiedSCACwerecarriedoutInaddition，theRclvalue([OH】／[03】)indicatedthecapacityofozonetransformingintoOHinthecatalyticozonmionreactionswithdifferentcatalyst，whichCanfurtherconfirmthemai

7、ncatalyticactivesiteandmechanismforSCACcatalyticozonationprocessTheresultsshowedthatBETsurfaceareaofSCACwas64413m2g～，andthemicroporestructureandmesoporousstructurewereextensiveTheamountsofacidandbasicfunctionalgroupsOnSC

8、ACwere078mmol百1and027mmol百’，respectivelySCACcansignificantlyincreasetheperformanceofozonation，especiallyintheearlyperiodofreactionTheremovalefficiencyofpCBAbySCAC／03inthefirstminutecanreach60。2％while261％withsingleozonati

9、onUnderthedifferentexperimentalconditionstheresultsshowedthatthecatalyticoxidationabilityofSCACincreasedwiththeriseofozoneconcentrationandthedecreaseofinitialconcentrationofp—CBA，andthecatalyticeffectincreasedwiththecata