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ID:31951647
大小:2.72 MB
页数:59页
时间:2019-01-29
《凹凸棒石与其改性对水华微囊藻去除效果的.研究》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、abilityofattapulgiteclay.Bythecomparison,effectofthegroupby450"Cisthebe瓯Ataclay-loadingof0.29/L,theremovalratemayreach88%.Theclaywasmodifiedwith2mol/LHCI,4mol/LHCI,8mol/LHCI.Ataclay-loadingof0.29/L,Theclaymodifiedwith2mol/LHC!hasbetterflocculationthannaturalclayandothersacidtreatedsamples.Ithasgot
2、tentheremovalrateof96%ataclay-loadingof0.29/L.Itissuperiortotheclaybyheattreatment,SOwecanusetheclaymodifiedwith2mol/LHCI.(3)Theattapulgiteclaysmodifiedwithcetyltrimethylammoniumbromide(CTMAB)possessedbetterremovalefficienciesthannaturalandothersmodifiedsamples.Ataclay-loadingof0.1g/L.alltheremova
3、lratesisabove90%.Thisisadvantageoustoreducetheclay—ioadings.TheremovalrateofM.A.942Wasrelatedtothelengthofchainsandtheamountofcationsurfactantsexchangedonattapulgite.Theclaymodifiedwith0.67CEC—CTMABisfitforremovingalgalcells.Consideringthemodifiedcost,themostsuitablemodifiedwayistheCTMABamountofO.
4、67CEC,itismoreidealtOtheremovalrate0fM.A.942.(4)Inthisexperimentwehavediscussedflocculationoftheclaymodifiedwith0.67CECCTMABinthedifferentgrowthphaseofmicroeystalgae(M.A.942).Inthedifferentgrowth,removalefficiencyisalsodifferent.Ataclay-loadingof50mg/L,Thesequenceisasfollows:senescencephase>lagpha
5、se>exponentialphase>stabilizationphase.Wecanusetheclayattherightgrowthsperiodsandreasonableclay-loadingsinthepractice,InthiswaytheefficiencyoftheclaysCanbeimproved.Keywords:Modifiedclay,Microcystisaeruginosa(M.A.942),Blue—greenalgawaterbloom,Attapulgite.5Ⅳ队.MCRECECCTMABLDHSEMXRD主要缩写词Microeystisaer
6、uginosaMicrocystinsRemovalrateCationexchangecapacityCetyltrimethylammoniumbromideLayereddoublehydroxideScanningelectronmicroscopyX.radialdiffraction微囊藻微囊藻毒素去除率阳离子交换量十六烷基三甲基溴化胺双羟基氢氧化物或水滑石扫描电子显微镜X射线衍射致谢本论文是在导师夏枚生老师悉心指导下完成的。从论文的选题、设计、试验到论文写作,无不凝聚着导师大量的心血。夏老师在过去的几年中为我的成长倾注了大量的心血,在学习和科研上严格要求、诲人不倦、谆谆教导,
7、给予我耐心和悉心的指导;在生活上给予我无微不至的关怀,在思想上给予我许多人生的启迪。夏老师严谨的治学态度、渊博的知识、前瞻性的思维风格、正直无私的博大胸怀、淡泊名利的生活作风都深深的激励着我不断地完善自己,发展自己!借此机会,谨向导师表示崇高的敬意和衷心的感谢!胡彩虹老师在我的学习、生活和科研工作给予了很多的指导和关心。在此表示衷心的感谢!感谢许老师和汪老师给我们提供了优良的学习、研究条件和环境!感谢孙建义、汪以真、贾仁
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