臭氧应用英文文章46

臭氧应用英文文章46Availableatwww.sciencedirect.comjournalhomepage:www.elsevier.com/locate/watresOxidationofresinandfattyacidsbyozone:KineticsandtoxicitystudyMohamedGamalEl-Din�,DanielW.Smith,FaresAlMomani,WeixingWangDepartmentofCivilandEnvironmentalEngineering,UniversityofAlberta,Edmonton,Alta.,CanadaT6G2W2articleinfoArticlehistory:Received10December2003Receivedinrevisedform25July2005Accepted8November2005Keywords:OzoneOxidationreactionkineticsResinandfattyacidsToxicityABSTRACTTheozonationofresinandfattyacids(RFAs)foundinpulpmilleffluentswasinvestigatedusingrapid-scanstopped-flowspectrophotometry.RFAsoxidation(i.e.,degradation)efficiencyincreasedwithincreasingtheamountofusedozoneandtemperature.Thedegradationprocesswithrespecttotheacidwasfoundtofollowfirst-orderkinetics.TheozonationofRFAswasmodeledasanoverallsecond-orderreactionforbothreactants.Theapparentoverallsecond-orderrateconstantswerecalculatedbasedonthepseudofirst-orderrateconstantsobtainedfromthekineticdatafittingfortheaciddegradation.T