涕滅威在土壤中吸附和水解行為的研究及SDBS對(duì)其行為的影響.pdf

1、南開(kāi)大學(xué)碩士學(xué)位論文涕滅威在土壤中吸附和水解行為的研究及SDBS對(duì)其行為的影響姓名：承雪琨申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：環(huán)境科學(xué)指導(dǎo)教師：戴樹(shù)佳2000.6.1AbstractThesorptionandhydrolysisbehaviorofaldicarb，ahiglltoxicitycarbamatepesticide，inthesoilwatersystemwasstudiedNotonlythebehaviorofaldicarb，

2、butthatofsodiumdodecylbenzenesulfonate(SDBS)，anotherpollutantinthecomplexpollutionsysteminthesoilwasincludedTheresearchworkisapartofanImportantProjectnamed”TheEnvironmentalChemicalBehaviorofChemicalPollul[antsinMultimedi

3、aandMultiinterfacialEnvironmentalSystem”，whichissupportedbyNationalNaturalScienceFoundationofChinaTheexperimentalstudyconsistsoftwomainparts：(1)ThesorptionofaldicarbinthesoilandtheeffectofSDBSonit；(2)Thehydrolysisofaldic

4、arbandaldicarbsulfoneandtheeffectofSDBSonitInthefirstpart，thetimeneededtoreachthesorptionequilibriumwasdeterminedanditwasshowedthatthetimeneedediS24hoursThesorptionofaldicarbcouldbefittedbyFreundlichofLinearisothermwitht

5、heKFof31335，andKLof32383ItwasindicatedthatSDBScoulddecreasetheSOrptionofaldicarbinthesoilInthesecondpart，theeffectofpH，NaOHconcentrationandtemperatureonthehydrolysisofaldicarb(AS)andaldicarbsulfone(AS02)wasstudiedResults

6、showedthatASandAS02wererelativelystableunderneutralandacidulousaqueousmediaThehydrolysisratesofthemincreasedasthepHofthemediaincreasedAndastheconcentrationofNaOHandthetemperatureinthemediaincreased，thehydrolysisratesofth

7、etwocompoundsincreasedrespectivelyItwasfoundthatSDBScouldacceleratethehydrolysisofASandAS02ItmayberesultedfromtheincreasedpHbySDBSandtheincreasedsolubilityofASinSDBSItwasalsoindicatedthatHumicAcidscoulddecreasethehydroly