絮凝剂在水处理中的应用与展望_宋力
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2020-02-23 11:08:51
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ApplicationofflocculantstowatertreatmentanditsforecastSongLi(DepartmentofChemistryandEnvironmentalEngineering,ChongqingUniversityofArtsandSciences,Chongqing402168,China)絮凝剂在水处理中的应用与展望宋力(重庆文理学院化学与环境工程学院,重庆402168)[摘要]主要探讨了无机絮凝剂中铝盐、铁盐的絮凝机理与应用效果,天然有机高分子絮凝剂中的改性淀粉、改性纤维素、改性木质素及壳聚糖和人造有机高分子絮凝剂在水处理中的应用机理与效果,无机与有机复合絮凝剂的种类、絮凝机理、应用效果。并对无机、有机、无机与有机复合三种类型絮凝剂在水处理中的优缺点与应用现状进行比较,指出复合絮凝剂与天然有机絮凝剂在饮用水处理方面具有良好应用前景。[关键词]水处理;无机絮凝剂;高分子絮凝剂[中图分类号]TQ314.253[文献标识码]A[文章编号]1005-829X(2010)06-0004-04Abstract:Theflocculationmechanismandapplicationeffectofaluminumsaltsandferricsaltsofinorganicfloccu-lants,themechanismandeffectofmodifiedstarch,modifiedcellulose,modifiedlignin,andchitosaninnaturalor-ganicmacromolecularflocculantsandman-madeorganicmacromolecularflocculantsandtheirapplicationtowatertreatmentarediscussed.Thecategory,flocculationmechanismandapplicationeffectofinorganicandorganicfloc-culantsarestudied.Theadvantagesanddisadvantagesandappliedstatusinquooftheinorganic,organicandcom-plexflocculantsinregardtowatertreatmentarecompared.Itispointedoutthatcomplexflocculantsandnaturalor-ganicflocculantshavegoodprospectindrinkingwatertreatment.Keywords:watertreatment;inorganicflocculant;macromolecularflocculant保护,2007,23(4):85-87.[20]SuC,PulsRW.Nitratereductionbyzerovalentiron:effectsofformate,oxalate,citrate,chloride,sulfate,borate,andphos-phate[J].Environ.Sci.Technol.,2004,38(9):2715-2720.[21]AlowitzMJ,SchererMM.Kineticsofnitrate,nitriteandCr(Ⅵ)reductionbyironmetal[J].Environ.Sci.Technol.,2002,36(3):299-306.[22]Rodríguez-MarotoJM,García-HerruzoF,García-RubioA,etal.Kineticsofthechemicalreductionofnitratebyzero-valentiron[J].Chemosphere,2009,74(6):804-809.[23]程荣,王建龙,张伟贤.纳米金属铁降解有机卤化物的研究进展[J].化学进展,2006(18):93-99.[24]ZhangXin,LinYuman,ChenZuliang.2,4,6-Trinitrotoluenereductionkineticsinaqueoussolutionusingnanoscalezero-valentiron[J].J.Hazard.Mater.,2009,165(1/2/3):923-927.[25]HuangQingguo,ShiXiangyang,PintoRA,etal.Tunablesyn-thesisandimmobilizationofzero-valentironnanoparticlesforen-vironmentalapplicatio
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