| 强化一级处理污泥的吸附性能研究 |
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| 引用本文： | 尤作亮,蒋展鹏,师绍琪,祝万鹏. 强化一级处理污泥的吸附性能研究[J]. 环境科学, 1999, 20(4): 24-27 |
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| 作者姓名： | 尤作亮 蒋展鹏 师绍琪 祝万鹏 |
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| 作者单位： | 清华大学环境科学与工程系 |
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| 基金项目： | 国家“九五”科技攻关项目 |
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| 摘 要： | 强化一级处理污泥对以ＣＯＤ和ＳＣＯＤ表示的有机物质具有较大的吸附量。其吸附等温线和解吸等温线既符合Ｆｒｅｕｎｄｌｉｃｈ型，也符合Ｌａｎｇｍｕｉｒ型，但解吸不完全。
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| 关 键 词： | 生物吸附 污泥 等温线 吸附动力学 强化处理 |
| 收稿时间： | 1998-09-30 |
Study on Biosorption of Organic Pollutantsby Enhanced Primary Sludge |
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| You Zuoliang,Jiang Zhanpeng,Shi Shaoqi and Zhu Wanpeng. Study on Biosorption of Organic Pollutantsby Enhanced Primary Sludge[J]. Chinese Journal of Environmental Science, 1999, 20(4): 24-27 |
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| Authors: | You Zuoliang Jiang Zhanpeng Shi Shaoqi Zhu Wanpeng |
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| Affiliation: | Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China;Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China;Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China;Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Biosorption of organic pollutants, expressed as COD and SCOD, by enhanced primary treatment sludge was studied. The biosorption isotherm well fit both the Freundlich equation and the Langmuir equation and the desorption of organic pollutants is incomplete. The biosorption amount is considerably affected by temperature: q20>q8>q32. It need about 30 minutes to reach biosorption equilibrium. The rate constants of biosorption, kad, are as follows: kad,COD=00421 min-1,kad,SCOD=00508 min-1. The rate controlling step is mainly intraparticle diffusion and the rate constants of intraparticle diffusion are 21776 mgg-1min-1/2(COD) and 13026 mgg-1min-1/2(SCOD) respectively. |
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| Keywords: | biosorption sludge biosorption isotherm biosorption dynamics. |
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