Abstract:

A novel heavy metal ion chelating agent was prepared based on hexamethylol melamine, carbon disulfide and sodium hydroxide as basic materials. Ethyl xanthate and the chelating agent were used to treat 50 mg/L Cu²⁺ simulated heavy metal wastewater. The effect of Cu²⁺ removal by single factor experiment was studied. The results of parallel comparison experiments showed that under the conditions of pH=6, reaction temperature 25℃, and reaction time 30 min, the removal rate of Cu²⁺ by the chelating agent reached 99.25%. However, the removal rate of Cu²⁺ by ethyl xanthate was only 75.08% under the corresponding conditions.

Key words: heavy metal ions, chelating agent, wastewater treatment

摘要：

以六羟甲基三聚氰胺、二硫化碳和氢氧化钠为原料，合成了一种新型重金属离子螯合剂2，4，6-（N-五羟甲基氨基）-2-（N-甲基黄原酸钠）-1，3，5-三嗪。将乙基黄药和该螯合剂分别用于处理50 mg/L Cu²⁺模拟重金属废水，通过单因素实验法研究了其对Cu²⁺的去除效果。平行对比实验结果表明，在pH=6，反应温度25℃，反应时间30 min的条件下，该螯合剂对Cu²⁺的去除率达到99.25%，而在对应条件下乙基黄药对Cu²⁺的去除率仅有75.08%。

关键词: 重金属离子, 螯合剂, 废水处理

CLC Number: 

• X703