| pH对厌氧颗粒污泥吸附4-氯酚的影响 |
| 摘要点击 2292 全文点击 1741 投稿时间：2006-04-06 修订日期：2006-05-16 |
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| 中文关键词 4-氯酚 生物吸附 厌氧颗粒污泥 |
| 英文关键词 4-chorophenol biosorption anaerobic granular sludge |
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| 中文摘要 |
| 研究了pH值对4-氯酚在厌氧颗粒污泥上的生物吸附特性的影响.结果表明，pH值对4-氯酚的吸附影响很大，pH值与吸附量呈负相关.随着pH值的升高，颗粒污泥对4-氯酚的吸附能力降低.pH为2.25时，吸附量为6.675 mg/g，而当pH为10.27时，吸附量仅为0.260 mg/g.不同的pH值下，4-氯酚在厌氧颗粒污泥上的吸附行为可以很好地用Langmuir吸附等温方程来描述.本研究还给出了几种pH值下厌氧颗粒污泥吸附4-氯酚的Langmuir和Freundlich方程. |
| 英文摘要 |
| The effect of the initial pH value on the biosorption behavior of 4-CP onto anaerobic granular sludge was investigated in this paper. The experimental results indicated that the initial pH value was the important parameter affecting the biosorption of 4-CP, and the biosorption capacity of anaerobic granular sludge decreased with the increase of pH value. The biosorption capacity of 4-CP was 6.675 mg/g at pH 2.25, while it was only 0.260 mg/g at pH 10.27. The equilibrium isotherm of 4-CP biosorption by anaerobic granular sludge was investigated at different pH values, and the results showed that the biosorption behavior of 4-CP could be described by the Langmuir model quite well. The coefficients of the Langmuir and the Freundlich equations of 4-CP biosorption by anaerobic granular sludge at different pH values were given. |
