摘要
实验采用自行合成的高分子重金属絮凝剂巯基乙酰聚乙烯亚胺(MAPEI)处理含铜电镀废水;研究其对Cu2+、Ni2+和浊度去除的效果及重金属的回收。结果表明:(1)该絮凝剂对Cu2+、Ni2+和浊度均有很好的去除作用;(2)废水pH值的变化对Cu2+、Ni2+和浊度的去除效果影响不大;(3)残渣中的Cu2+用盐酸回收,回收率可达到60%。
A macromolecule heavy metals flocculant polyethyleneimlne-thioglycollic acid （MAPEI） synthesized by reacting polyethyleneimine with thioglycollic in acid medium is used to treat copper containing electroplating wastewater. Its efficiency in removing Cu^2＋ , Ni^2＋ and turbidity as well as heavy metal recovery are investigated. The experiments results show; （1） MAPEI has a strong removing effect on Cu^2＋ , Ni^2＋ and turbidityl （2） The pH value has a little effect on the removal of Cu^2＋ , Ni^2＋ and turbidity; （3） The Cu^2＋ contained in the precipitates can be recovered by hydrochloric acid, and recovery rate can reach 60%.
出处
《电镀与环保》
CAS
CSCD
2008年第3期38-41,共4页
Electroplating & Pollution Control
基金
国家自然科学基金项目(20377020)
关键词
高分子重金属絮凝剂
含铜废水
配位
絮凝
回收
macromolecule heavy metal flocculant
copper containing wastewater
coordination
flocculation
recover
