| 天然吸附材料在废水重金属离子处理中的应用 |
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| 引用本文： | 任建敏,吴四维.天然吸附材料在废水重金属离子处理中的应用[J].重庆工商大学学报(自然科学版),2005,22(6):537-540. |
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| 作者姓名： | 任建敏 吴四维 |
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| 作者单位： | 重庆工商大学,环境与生物工程学院,重庆,400067 |
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| 摘 要： | 综述了几种性能优良、价格低廉的天然吸附材料,并与活性炭对照,得出了壳聚糖是吸附性能最好的吸附剂,其吸附Hg2 、Cr6 、Cd2 、Cu2 和Zn2 的能力分别为815、273、250、222、75 mg/g;沸石吸附Pb2 与Cd2 的能力分别为175、137 mg/g;废污泥吸附Pb2 、Hg2 和Cr6 的能力分别是1 030、560、540 mg/g;木质素吸附Pb2 与Zn2 的能力分别为1 865、95 mg/g。
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| 关 键 词： | 壳聚糖 沸石 粘土 废水 |
| 文章编号： | 1672-058X（2005）06-0537-04 |
| 收稿时间： | 2005-05-17 |
| 修稿时间： | 2005-05-172005-09-12 |
The application of nature absorbents for heavy metals uptake from contaminated water |
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| REN Jian - min,WU si- wei.The application of nature absorbents for heavy metals uptake from contaminated water[J].Journal of Chongqing Technology and Business University:Natural Science Edition,2005,22(6):537-540. |
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| Authors: | REN Jian - min WU si- wei |
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| Institution: | Environment and Biological Engineering School, Chongqing Technology and Business University, Chongqing 400067, China |
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| Abstract: | In this article,various low-cost absorbents for heavy metal removal from contaminated water have been reviewed.The results of their removal performance are compared to that of activated carbon and are presented in this study.Absorbents that stand out for high absorption capacities are chitosan(815,273,250,222 and 75 mg/g of Hg~(2 ),Cr~(6 ),Cd~(2 ),Cu~(2 ) and Zn~(2 ),respectively),zeolites(175 and 137mg/g of Pb~(2 ) and Cd~(2 ),respectively),waste slurry(1 030,560,540 mg/g of Pb~(2 ),Hg~(2 ),and Cr~(6 ),respectively),and lignin(1 865,95 mg/g of Pb~(2 ) and Zn~(2 )).These absorbents are suitable for inorganic effluent treatment containing the metal ions mentioned instead of activated carbon. |
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| Keywords: | chitosan zeolites clay wastewater |
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