| 改性膨润土处理含汞废水 |
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| 引用本文： | 于瑞莲.改性膨润土处理含汞废水[J].中国非金属矿工业导刊,2005(6):53-55. |
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| 作者姓名： | 于瑞莲 |
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| 作者单位： | 华侨大学环境科学与工程系,福建,泉州,362011 |
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| 摘 要： | 用硫酸对天然膨润土进行改性，研究了酸改性膨润土处理含Hg^2＋废水的适宜条件。结果表明：当Hg^＋初始浓度为1mg/L时，用土量为10g/L，pH值=8，振速150r/min，吸附时间90min，酸改性膨润土对Hg^2＋的去除率可达97.1%。处理后Hg^2＋残留浓度低于国家规定的一级排放标准。
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| 关 键 词： | 改性膨润土 硫酸 含汞废水 |
| 文章编号： | 1007-9386(2005)06-0053-03 |
| 收稿时间： | 2005-09-14 |
| 修稿时间： | 2005年9月14日 |
Treatment of Mercuric Wastewater by Modified Bentonite |
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| Yu Ruilian.Treatment of Mercuric Wastewater by Modified Bentonite[J].China Non-Metallic Mining Industry Herald,2005(6):53-55. |
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| Authors: | Yu Ruilian |
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| Affiliation: | Department of Environmented Science and Engineering, Hua Qiao University, QuarlZhou, Fujian, 362011 |
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| Abstract: | Natural bentonite was modified with sulfuric acid in this paper.Then the suitable condition of removing Hg2+ by acid-modified bentonite was studied.The results show that when the initial concentration of Hg2+ is 1mg/L,the removal ratio of Hg2+ by acid-modified bentonite can reach greater than 97.1% under the following condition: the dosage of acid-modified bentonite is 10g/L,pH=8,the vibration velocity is 150r/min,the adsorption time is 90min.The residual concentration of Hg2+ is less than the first national effluent concentration limit after the treatment by acid-modified bentonite. |
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| Keywords: | modified bentonite sulfuric acid mercuric wastewater |
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