芳基有机膨润土对水中酚类化合物的吸附性能研究

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1、浙江工商大学硕士学位论文STUDYoNTHEADSoRPTIoNoFPHENoLICCoMPoUNDSBYARYLoRGANoBENToNITESABSTRACTPhen01iccompoundsareprima拶O唱anicpollutantsinwaters，andtheyaregreatlypoisonousandhardtobedegraded．SothestlJdyonhowtoefrectiVelycontrolandtreatphenolicwastewaterisex仃emelysignificant．Ithasbeenmadesomeprogre

2、ssesinresearchesonadso印tionofphenolicwastewaterbyo唱anobentonites，buttheo略a11icmodifierscurrentlyusedaremainlylongandshortcarbonchainalkylquatema秽ammoniumsu渤Ctants，whilequatema拶ammoniumsurfactantscontainingbeI屹eneringsarerarelyapplied．Becausethemutuale矗’ectsof7【-7【bondsbetweenbenzeneri

3、ngscanenhancetheadso印tionofarI)maticcompounds，inthisexperiment，theadso印tioncap￡lbilityofphenoliccompoundsbyo唱anobentoniteswhichweremodifiedbya拶lquatema巧ammoniumsurfactantswasspeciallystudied．TheoriginalbentonitewasmodifiedI．espectiVelybyfiVekindsofquatema巧ammoniumsurfactants，suchasTMA

4、，BTMA，BTEA，CTMABandHDBAC，whichwereindifferentstructures．Stlllctllrecharacteristicsofo唱anobentonites，adso叩tioncapability，adso印tionmechanismandadso巾tioninfluencingfactorsofphenoliccompoundsbyo玛anobentonitesweresystematicallystudied．Meanwhile，theeffectsofbenzene“ngstmctureonadso巾tioncapa

5、bilityofaromaticcompoundsIlIadso巾tionsuperiorityof40BTMA—o唱anobentonitewasmoreobViousthanlOOHDBAC—o玛anobentonite．Thiswasmainlybecausethe兀一兀bondsbetweenbenzene五ngshadmutllallyreinforCingefrects，whichcouldacceleratetheadso印tionofaromaticcompoundsbya巧lo玛anobentonites．(4)Redlich—Petersonm

6、odelwiththreeparameterscouldovercomethelimitationsoftraditionalmodels，suchasLangmuirmodel，FreundlichmodelandLinearmodel，andcouldfitadso叩tionisothemcurvesofbomlongandshortcarbonchaino玛anobentoniteswell．SoRedlich．Petersonmodelwasanidealadso叩tionmodel．Resultsofmodelfittingshowedthat，thea

7、dsoIptionofphenoliccompoundsbyshortcarbonchainIV浙江工商大学硕士学位论文。玛anobentonitesofdin’erentstnlctllreswasmainlysu—’aceadso巾tion，buttlleporesofbentonitesurl’acedist抽uteduneVenlyandtheadso印tionofo唱aniccompoundswasnottheunifbnnmonolayeradso印tion；moreoVer’theadso印tionofphenoliccompoundsbylongc

8、arbon