【摘要】 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(BE-TA)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10 min,捕集剂用量为废水中Cu2+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,Cu2+的去除率可达99%以上,处理后废水的Cu2+浓度低于0.5 mg/L,可满足国家排放标准。更多还原

【Abstract】 The heavy metal chelating agent DTC(BETA) about dithiocarbamate(DTC) derivatives was synthesized with diethylenetriamine and carbon disulfide as raw materials.The treatment effect of the chelating agent on wastewater containing Cu2+ was investigated.The results showed that the removal ratio of Cu2+ was above 99% under the following conditions: the mass ratio of the used quantity of chelating agent to Cu2+ 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 Cu2+in the treated wastewater was below 0.5mg/L and met the national standard for wastewater discharge.更多还原