离子交换膜及电流密度对电渗析法再生化学镀镍废液的影响  

Effect of Iron Exchange Membranes and Current Density on the Regeneration of Spent Electroless Nickel Plating Bath by Electrodialysis

作　　者：赵雨[1] 何湘柱[1,2] 赵国鹏[2] 傅志宏[1] 

机构地区：[1]广东工业大学轻工化工学院,广州510006 [2]广州二轻研究所,广州510663

出　　处：《表面技术》2010年第5期32-34,110,共4页Surface Technology

基　　金：国家自然科学基金项目(50004003);广东省中小企业创新项目(2009CY129);广州市科技计划项目(2008J1-C041);广东省211工程建设项目(412110904)

摘　　要：应用电渗析技术,可以有效降低化学镀镍成本,减少环境污染。采用3种离子交换膜对某化学镀镍厂的废液进行电渗析再生处理,通过测定HPO32-的去除率,以及Ni2+和H2PO2-的损失率,确定其中一种交换膜在脱盐率及对HPO32-和H2PO2-的选择性方面更好。并以此种性能较好的离子交换膜进行试验,研究了电流密度对镀镍废液中HPO32-,Ni2+和H2PO2-的去除(损失)率的影响。结果表明,电流密度在65 mA/cm2时,镀镍废液的再生效果最好。Application of electrodialysis technique can effectively reduce the cost of electroless nickel plating and decrease the pollution of environment.Using three different types of ion-exchange membrane of a nickel-plating plant waste for regeneration electrodialysis treatment,by measuring the removal rate of HPO3^2-,loss rate of Ni^2＋ and H2PO2^-,to determine one of the ion-exchange membranes both better in desalination rate and selectivity of HPO3^2-and H2PO2^-.And using this ion-exchange membrane of a better natural capacity to experiment,studied the current density that removal（loss） rate affect of HPO3^2-,Ni^2＋ and H2PO2^-for the nickel plating waste.The result shows that the regeneration effect of nickel plating waste is best when current density is 65 mA/cm^2.

关 键 词：化学镀镍 废液 电渗析 再生 

分 类 号：X781.1[环境科学与工程—环境工程]