| 酸化凹凸棒石黏土对废水中Cr6+的吸附及其应用研究 |
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| 引用本文： | 刘云,陈捷,马毅杰. 酸化凹凸棒石黏土对废水中Cr6+的吸附及其应用研究[J]. 非金属矿, 2007, 30(4): 60-61 |
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| 作者姓名： | 刘云 陈捷 马毅杰 |
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| 作者单位： | 中国科学院南京土壤研究所,南京,210008 |
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| 基金项目： | 江苏省科技攻关计划 , 江苏省自然科学基金 |
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| 摘 要： | 从凹凸棒石黏土(凹土)酸化入手,进行了酸化凹土吸附Cr6 的实验研究.结果表明,酸化凹土对水中Cr6 的吸附性能受pH值和吸附剂用量等因素的影响.酸化凹土Cr6 的等温吸附曲线同时符合Langmuir方程和Freundlich方程,而原土对Cr6 的等温吸附曲线符合Freundlich方程.酸化凹土对Cr6 的吸附力大于原凹土对Cr6 的吸附力.用酸化凹土对含Cr6 的电镀废水处理,能够使其达到排放标准.
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| 关 键 词： | Cr6 凹凸棒石黏土 酸化 吸附 应用 |
| 修稿时间： | 2007-04-24 |
Study on Adsorption of Cr6+ in Wastewater by Acid-treatment Palygorskite Clays and Its Application |
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| Liu Yun,Chen Jie,Ma Yijie. Study on Adsorption of Cr6+ in Wastewater by Acid-treatment Palygorskite Clays and Its Application[J]. Non-metallic Mines, 2007, 30(4): 60-61 |
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| Authors: | Liu Yun Chen Jie Ma Yijie |
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| Affiliation: | Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 |
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| Abstract: | The experiment has been done for adsorption of Cr6 by acid-treatment palygorskite. The result shows that the adsorption is affected by amount of adsorbent and aqueous pH. The adsorption curve of Cr6 by acid-treatment palygorskite conforms with Langmuir equation or Freundlich equation, and that by original palygorskite conforms with Freundlich equation. Adsorption affi nity of acid-treatment palygorskite is stronger than that of original palygorskite. And acid-treatment palygorskite can be used in treating electric plating wastewater, and the indexes after adsorption have met the requirement of National Standard of Wastewater Discharge. |
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| Keywords: | Cr6 palygorskite acid-treatment adsorption application |
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