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1、JournalofEnvironmentalManagement91(2009)67–77ContentslistsavailableatScienceDirectJournalofEnvironmentalManagementjournalhomepage:www.elsevier.com/locate/jenvmanReviewReviewoffluorideremovalfromdrinkingwatera,*aabbM.Mohapatra,S.Anand,B.K.Mishra,DionE.Giles,P.SinghaInstituteofMineralsandMaterialsT
2、echnology,Bhubaneswar751013,Orissa,IndiabMurdochUniversity,Perth,W.AustraliaarticleinfoabstractArticlehistory:Fluorideindrinkingwaterhasaprofoundeffectonteethandbones.Uptoasmalllevel(1–1.5mg/L)thisReceived25February2009strengthenstheenamel.Concentrationsintherangeof1.5–4mg/Lresultindentalfluorosi
3、swhereasReceivedinrevisedformwithprolongedexposureatstillhigherfluorideconcentrations(4–10mg/L)dentalfluorosisprogresses6August2009toskeletalfluorosis.Highfluorideconcentrationsingroundwater,uptomorethan30mg/L,occurAccepted31August2009widely,inmanypartsoftheworld.Thisreviewarticleisaimedatprovidingp
4、reciseinformationonAvailableonline22September2009effortsmadebyvariousresearchersinthefieldoffluorideremovalfordrinkingwater.Thefluorideremovalhasbeenbroadlydividedintwosectionsdealingwithmembraneandadsorptiontechniques.Keywords:Underthemembranetechniquesreverseosmosis,nanofiltration,dialysisandelect
5、ro-dialysishavebeenFluorideAdsorptiondiscussed.Adsorption,whichisaconventionaltechnique,dealswithadsorbentssuchas:alumina/Membranealuminiumbasedmaterials,claysandsoils,calciumbasedminerals,syntheticcompoundsandcarbonIonexchangebasedmaterials.Studiesonfluorideremovalfromaqueoussolutionsusingvariou
6、sreversedzeolites,Aqueousmediummodifiedzeolitesandionexchangeresinsbasedoncross-linkedpolystyrenearereviewed.Duringthelastfewyears,layereddoubleoxideshavebeenofinterestasadsorbentsforfluorideremoval.Suchrecentdevelopmentshavebeenbrieflydiscussed.Ó2009ElsevierLtd.Allrightsreserved.1.Introductiondens
7、er,harderandmorebrittle.Intheteeththiscausesmottlingandembrittlement,aconditionknownasdentalfluorosis.WithThefluorideoccursmainlyassellaite(MgF2),fluorspar(CaF2),prolongedexposure(Dissanayake,1991)athigherfluoridecryolite(Na3AlF
