重金属捕集剂DTC（BETA）处理含铜废水效果研究

以二乙烯三胺、二硫化碳为原料合成了二硫代氨基甲酸盐类重金属捕集剂DTC（BETA），分析了DTC（BETA）对单一含铜废水的捕集效果。结果表明：在废水pH为4～10范围内，搅拌时间为10min，捕集剂用量为废水中Cu^2＋含量的9倍（质量比），不加絮凝剂时，重金属捕集剂能处理较宽浓度范围的含铜废水，Cu^2＋的去除率可达99％以上，处理后废水的Cu^2＋浓度低于0．5mg／L，可满足国家排放标准。

Studies on the treatment effect of wastewater containing Cu~(2+) with heavy metal chelating agent DTC(BETA)

The heavy metal chelating agent DTC（BETA ） about dithiocarbamate （DTC） derivatives was synthesized with cliethylenetriamine and carbon disulfide as raw materials. The treatment effect of the chelating agent on wastewater containing Cu^2＋ was investigated. The results showed that the removal ratio of Cu^2 ＋ was above 99% under the following conditions： the mass ratio of the used quantity of chelating agent to Cu^2＋ was 9, pH was 3-10, stirring time was 10 minutes, no flocculants agent was added, and the chelating agent could treat the various wastewater containing different content of Cu2＋ successfully, the contents of Cu^2＋ in the treated wastewater was below 0.5mg/L and met the national standard for wastewater discharge.