改性膨润土处理含汞废水研究  

Study on Treatment of Hg-containing Wastewater by Modified Bentonite

作　　者：王代芝[1] 赵艳萍[2] 周珊[1] 

机构地区：[1]湖北师范学院化学与环境工程系,黄石435002 [2]襄樊学院化学化工系,襄樊441053

出　　处：《非金属矿》2004年第3期43-44,共2页Non-Metallic Mines

摘　　要：研究了改性膨润土在不同条件下处理含Hg2 + 废水的能力。结果表明 ,在温度为 2 5℃、pH值为 8～ 9、吸附时间为 60min的条件下 ,用 40 %的AlCl3溶液改性过的膨润土可将含Hg2 + 废水 (初始浓度为 1.46mg/L)处理到Hg2 + 剩余浓度为 0 .0 3 5 1mg/L ,达到国家规定的排放标准。The treat capacity to wastewater of mercury ion with modified bentonite is researched under different conditions. The results showed that the modified bentonite with AlCl 3 of the concentration of 40 percentage can reduce the concentration of mercury ion (1.46×10 -6) in wastewater to 0.035 1×10 -6 at 60℃,the pH range from 8 to 9,60 minutes of adsorption time.The rest merecury concentration of mercury in wastewater can meet the national discharge criterion.

关 键 词：膨润土 改性 废水 汞 

分 类 号：TD875.5[矿业工程—非金属矿开采]