电絮凝-Removal of Cadmium from Industial Effluents by

电絮凝-Removal of Cadmium from Industial Effluents by Electrocoagulation Using Iron ElectrodesIran.J.Environ.Health.Sci.Eng.,2006,Vol.3,No.4,pp.261-266*Correspondingauthor-Email:ahmahvi@yahoo.comTel:+982188954914,Fax:+982188950188261REMOVALOFCADMIUMFROMINDUSTRIALEFFLUENTSBYELECTROCOAGULATIONPROCESSUSINGIRONELECTRODESE.Bazrafshan,∗A.H.Mahvi,S.Nasseri,A.R.Mesdaghinia,F.Vaezi,Sh.NazmaraDepartmentofEnvironmentalHealthEngineering,SchoolofPublicHealthandCenterforEnvironmentalResearch,MedicalSciences/UniversityofTehran,Tehran,IranReceived10August2006;revised30August2006;accepted25September2006ABSTRACTTheobjectofthisstudyistheevaluationofcadmiumremovalfromindustrialwastewaterbyelectrocoagulationprocess.Forthisstudyaglasstankin1.56Lvolumewithfourplateelectrodewasusedtodoexperiments.TheelectrodesmadeofironandconnecttothepositiveandnegativepoleofDCpowersupply(bipolarmode).Thetankwasfilledwithsyntheticwastewaterthatwascontainingcadmiumioninconcentration5,50and500mg/Landthenitwasstartedup.Thepercentof