重金属捕集剂法处理低浓度电镀废水  

Low-concentration electroplating wastewater treatment by heavy metal chelator

作　　者：王贞[1] 叶国祥[1] 杨岳平[1] 

机构地区：[1]浙江大学环境工程研究所,浙江杭州310027

出　　处：《浙江大学学报（理学版）》2010年第6期665-669,共5页Journal of Zhejiang University（Science Edition）

基　　金：浙江省科技计划项目(2009C33120)

摘　　要：以含Ni2+、Cr3+、EDTA-Cu、焦磷酸铜的单一及综合模拟废水为处理对象,对市场上常见的几种重金属捕集剂进行了比较,结果表明捕集剂CM-1在金属离子去除效率和经济效益方面更能满足要求.在此基础上,研究了捕集剂投加量、pH值、废水初始浓度及金属离子共存对处理效果的影响,确定了CM-1的最佳使用条件.同时对CM-1成分进行了红外和紫外光谱分析,结果表明其属于二硫代氨基甲酸(DTC)类物质.Take single and integrated simulate wastewater of Ni2＋、Cr3＋、EDTA-Cu and Copper Pyrophosphate as processing object,several organic heavy metal chelators on the market was compared on their removal efficiency of heavy metal and cost.Result shows CM-1 can meet the requirements better than others.On this basis,the impact of chelator dosage,pH,initial concentration of wastewater and metal ions co-exist on heavy metal removal efficiency is studied.Then the best condition of using CM-1 is determined.Meanwhile,analyze the components of CM-1 with its infrared and ultraviolet spectrograms.The results reveal that CM-1 belongs to category of dithiocarbamate（DTC）.

关 键 词：重金属 捕集剂 螯合剂 电镀废水 

分 类 号：X703[环境科学与工程—环境工程]