摘要
研究了改性膨润土在不同条件下对含Hg^2＋废水的处理能力。结果表明：Hg^2＋初始浓度为1mg／L，用土量为10g／L，pH=9-10，吸附时间90min。酸改性膨润土对Hg^2＋的去除率可达97％以上。处理后Hg^2＋浓度低于国家一级排放标准。
The treat capacity to wastewater of mercury ion with modified bentonite is researched under different conditions. The results show that when the initial concentration of Hg^2＋ is 1 mg/L, the removal ratio of Hg^2＋ by acid--modified beniomte can reach greater than 97% under the following conditions：the dosage of acid--modified bentonite is 10g/L, pH = 9 - 10,the adsorption time is 90 mins. The residual concentration of Hg^2＋ is less than the first national discharge criterion after the treatment by acid--modified bentonite.
出处
《矿冶》
CAS
2009年第2期98-100,108,共4页
Mining And Metallurgy
关键词
含汞废水
改性膨润土
硫酸
去除率
wastewater of mercury
modified bentonite
sulfuric acid
removal rate
