电去离子技术再生化学镀镍老化液的研究  

An Investigation into Regeneration of Spent Electroless Nickel Plating Bath by Electrodeionization

作　　者：邢明秀[1] 刘贵昌[1] 王昊[1] 王立达[1] 

机构地区：[1]大连理工大学化工学院,辽宁大连116024

出　　处：《电镀与环保》2012年第3期46-48,共3页Electroplating & Pollution Control

摘　　要：采用电去离子技术去除化学镀镍老化液中残余的Ca2+,考察了不同工艺条件对Ca2+的去除率的影响。结果表明:随着电流的增加,Ca2+的去除率增大;凝胶型阳树脂比大孔型阳树脂更有利于对Ca2+的去除。在实验所用电流条件下,溶液的pH值在酸性范围内,同时对EDI膜堆进行了改造,增加极室保护室,避免了膜堆结垢。Electrodeionization was used to remove the residual Ca2＋ in spent electroless nickel plating bath, and the effects of different technological conditions on the removal rate of Ca2＋ was investigated. The results show that with the increasing of the film stack current, the removal rate of Ca2＋ increases and gel-type ion exchange resin is more beneficial to remove Ca2＋ than macro-reticular type ion exchange resin. Under the experimental current conditions, pH values are within acidic range. Furthermore, the modification of the EDI membrane reactor avoids the membrane stack scaling.

关 键 词：电去离子 离子交换树脂 CA2+ 化学镀镍废液 

分 类 号：X781.1[环境科学与工程—环境工程]