| 利用剩余污泥吸附重金属离子铜、锌、镉的研究 |
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| 引用本文： | 谢立祥,胡克伟.利用剩余污泥吸附重金属离子铜、锌、镉的研究[J].广东化工,2010,37(2):207-209. |
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| 作者姓名： | 谢立祥 胡克伟 |
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| 作者单位： | 1. 中机国际工程设计研究院,湖南,长沙,410007
2. 湘潭大学,环境科学与工程系,湖南,湘潭,411105 |
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| 摘 要： | 利用剩余污泥对Cu2+、Zn2+、Cd2+三种重金属离子进行吸附研究,考察了pH、吸附时间、污泥投加量、温度等对吸附过程的影响;并探讨了吸附处理过程中三种重金属离子的等温吸附特性,以及吸附数据的线性拟合方程。实验结果表明,剩余污泥对Cu2+、Zn2+、Cd2+三种重金属离子具有良好的吸附效果,在优化条件下,三种重金属离子去除率分别达到94.3%、70.5%和81%;三种重金属离子的吸附等温线均与Langmuir方程吻合较好,吸附能力大小顺序为Cu2+Cd2+Zn2+。
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| 关 键 词： | 剩余污泥 重金属 吸附 吸附等温方程 |
Study on Adsorption of Cu2+、Zn2+、Cd2+ with Activated Sludge |
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| Xie Lixiang,Hu Kewei.Study on Adsorption of Cu2+、Zn2+、Cd2+ with Activated Sludge[J].Guangdong Chemical Industry,2010,37(2):207-209. |
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| Authors: | Xie Lixiang Hu Kewei |
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| Affiliation: | 1.China Machinery International Engineering Design & Research Institute;Hunan 410007;2.Department of Environmental Science and Engineering;Xiangtan University;Xiangtan 411105;China |
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| Abstract: | The adsorption of Cu2+,Zn2+,Cd2+ with activated sludge was studied.The effects of pH,reaction time,Sludge dosage and temperature were investigated.Also the adsorption properties of activated sludge towards Cu2+,Zn2+,Cd2+ was evaluated and fitted.The results showed that activated sludge exhibited potential for Cu2+,Zn2+,Cd2+ adsorption.Under the optimal conditions,the removal rate reached 94.3 %,70.5 % and 81 % respectivly.Adsorption isotherms of these three heavy metals corresponded well with the Langmuir e... |
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| Keywords: | activated sludge heavy metal adsorption curve fitting |
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