摘要
某塑胶电镀企业粗化过程中产生大量含铬漂洗废水,总量约为25 t/d,主要污染物为六价铬。对原有漂洗及废水处理工艺进行改造,采用了离子交换?浓缩蒸发联合法进行处理,在较低的成本下实现了废水回用及铬酸酐回收,获得了较好的经济效益和社会效益。
A large amount(about 25 t per day)of rinsing wastewater containing chromium(in hexavalent state mainly)was produced from the roughening process in a plastic electroplating plant.The original rinsing and wastewater treatment processes were reformed,and a process combining ion exchange and concentration evaporation was employed to treat the wastewater.The reuse of effluent and the reclamation of chromic anhydride were realized at a lower cost,achieving good economic and social benefits.
作者
唐星星
TANG Xingxing(Department of Materials Engineering,Zhejiang Industry and Trade Vocational College,Wenzhou 325003,China)
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2020年第7期436-439,共4页
Electroplating & Finishing
基金
温州市水体污染控制与治理科技创新项目(W20170021)。
关键词
塑料电镀
粗化
铬
废水处理
离子交换
蒸发浓缩
plastic electroplating
roughening
chromium
wastewater treatment
ion exchange
concentration evaporation
