聚硅酸改性活性氧化鋁及除氟效能研究.pdf

1、蘇州科技學院碩士學位論文聚硅酸改性活性氧化鋁及除氟效能研究姓名：王國建申請學位級別：碩士專業(yè)：環(huán)境工程指導教師：王東田20080501蘇州科技學院碩十學位論文AbstractAbstractInthispaper，thebestconditionsofpreparingmodifiedactivatedaluminaandtheperformanceoffluorideremovalwerestudiedWhenthepercentag

2、eofSi02is230％，immersioninpolysilicate15h，roastinginmufflefuenaceat500。Candroasting2h，Inthisconditon，wecailgetthebesteffectoffluorideremovalbymodifiedactivitedalumnianThefluorideremovalefficiencyofunmodifiedandmodifiedact

3、ivitedaluminawasstudiedbythemethodofusingbatchreactorandcontinuous—flowcolumnInordertofindtheeffectsonfluorideremoval，thewayandconditionofpreparingmodifiedactivitedaluminaItiscomparedthefluorideremovalefficiencyofactivit

4、edaluminawithmodifiedactivitedaluminabybatchreactorandcontinuousflowcolumn111eadsorptioncapacityandadsorptionisothermoffluorideremovalarestudiedalsoBatchreactorexperimentsshowtheadsorptioncapacityofactivitedaluminaincrea

5、seswitlltheadsorptiontimelongerandhighertheconcentrationofrawwaterTheadsorptioncapacityislowerwhenpHincreses，buttheadsorptioncapacityisunconspicuousaffectbypHTheadsorptionisothermofactivitedaluminaconformstoFreundlichequ

6、ationsaturationadsorptioncapacityiscomparedunmodifiedactivitedaluminawithactivitedaluminafrom3m#gto6m#gThefluorideremovalcapacityisgreatlyimproved111econtinuous—flowcolumnshowthebreakoutcurveisaffectedbytheflowvelocityth

7、erawconcentrationandthesizeofthealuminaIthasbeenverifiedthatthemodifiedactivatedaluminaisexcellentfortheremovaloffluoridefromdrinkingwatertomeetthedringkingwaterqualitystandardsKeywords：polysilicate，activatedaluminamodif