| 活性污泥吸附重金属离子的研究 |
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| 引用本文： | 李芬芳,宋勇,陈刚. 活性污泥吸附重金属离子的研究[J]. 湖南工程学院学报(自然科学版), 2009, 19(2) |
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| 作者姓名： | 李芬芳 宋勇 陈刚 |
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| 作者单位： | 长沙环境保护职业技术学院环境科学系,长沙,410005;长沙大学生物工程与环境科学系,长沙,410003 |
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| 摘 要： | 重金属废水的污染日益严重,寻找廉价高效的吸附剂是经济地处理重金属废水的关键.试验选择活性污泥为吸附剂,考察其对重金属离子Cu2+、Zn2+和Cd2+的吸附性能.实验结果表明,活性污泥对3种重金属离子都有很强的吸附能力,且吸附很快,前4 min时的去除率和吸附量上升最快;在常温范围内,温度对活性污泥吸附金属的影响并不显著,而体系pH值和吸附剂投加量的影响较为重要;活性污泥对3种重金属离子的吸附均符合Langmuir模型.
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| 关 键 词： | 剩余活性污泥 重金属 吸附 |
Study on Adsorption of Activated Sludge on Heavy Metal Ions |
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| LI Fen-fang,SONG Yong,CHEN Gang. Study on Adsorption of Activated Sludge on Heavy Metal Ions[J]. Journal of Hunan Institute of Engineering(Natural Science Edition), 2009, 19(2) |
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| Authors: | LI Fen-fang SONG Yong CHEN Gang |
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| Affiliation: | LI Fen-fang1,SONG Yong2,CHEN Gang3 (1.Environmental Science Department of Changsha Environment Protection College,Changsha 410004,China,2.Department of Biological and Environmental Engineering,Changsha College,Changsha 410003,3.Environmental Protection Agency of Hunan,Changsha 410007,China) |
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| Abstract: | The adsorption of activated sludge on the heavy metal iron(Cu2+,Zn2+and Cd2+) is studied in this paper.The results show that the adsorption speed of heavy metal irons with activated sludge is rapid.The removal rate and adsorption capability of Cu2+,Zn2+and Cd2+ rise rapidly in 4 minutes.In arang of regular temperature,the influence of temperature on the adsorption effect is minimal,and the influence of initial pH and the dosage of sorbent are important.The adsorption isotherm of Cu2+,Zn2+and Cd2+ with activ... |
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| Keywords: | activated sludge heavy metal iron adsorption |
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