二段式鸟粪石结晶法处理铜氨络合废水_英文_柴立元

二段式鸟粪石结晶法处理铜氨络合废水_英文_柴立元Trans.NonferrousMet.Soc.China27(2017)457−466Two-sectionalstruviteformationprocessforenhancedtreatmentofcopper−ammoniacomplexwastewaterLi-yuanCHAI1,2,CongPENG1,2,Xiao-boMIN1,2,Chong-jianTANG1,2,Yu-xiaSONG1,2,YangZHANG1,2,JingZHANG1,2,MohammadALI1,21.SchoolofMetallurgyandEnvironment,CentralSouthUniversity,Changsha410083,China;2.ChineseNationalEngineeringResearchCentreforControlandTreatmentofHeavyMetalPollution,CentralSouthUniversity,Changsha410083,ChinaReceived30May2016;accepted6January2017Abstract:Mg2+andPO43+wereaddedintothesyntheticwastewater,leadingtothedissociationofthecomplexionsinthewastewater,andresultinginremovalofcopperandammoniatherein.Theeffectsofagentsadditionamount,pH,andreactiontimeontheremovalefficiencyofcopperandammoniawereinvestigated.Inparticular,two-sectionalstruviteformation(TSSF)processwasestablishedforcopperandammoniaremoval.MgCl2andNa2HPO4wereaddedbyfollowing90%additioninthefirstsectionandremained10%inthesecondduringtheTSSFprocess.Comparedw