| 亚甲基蓝在缺氧活性污泥上的吸附平衡和动力学 |
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| 引用本文： | 晏再生,王世和,吴慧芳,康晓鹍,马玉.亚甲基蓝在缺氧活性污泥上的吸附平衡和动力学[J].城市环境与城市生态,2009(6). |
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| 作者姓名： | 晏再生 王世和 吴慧芳 康晓鹍 马玉 |
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| 作者单位： | 中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室;东南大学市政工程系;南京工业大学环境学院; |
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| 基金项目： | 江苏省省级重点环保科技项目(2007018) |
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| 摘 要： | 为了考察缺氧活性污泥对染料的吸附性能和吸附机理,以缺氧活性污泥作为吸附剂,亚甲基蓝作为吸附质进行等温吸附试验。结果表明:亚甲基蓝在缺氧活性污泥上的吸附遵循准二级速率方程,吸附方式为化学吸附;吸附行为符合Langmuir和Redlich-Peterson吸附等温式,为单分子层吸附,理论最大吸附量9.25 mg/g;亚甲基蓝分子在污泥颗粒内扩散动力学曲线存在线性部分,说明吸附过程存在污泥颗粒微孔内扩散效应。
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| 关 键 词： | 缺氧活性污泥 亚甲基蓝 生物吸附 动力学 平衡 |
Kinetics and Equilibrium Studies for Sorption of Methylene Blue onto Anoxic Activated Sludge |
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| YAN Zai-sheng ,WANG Shi-he ,WU Hui-fang ,KANG Xiao-kun ,MA Yu.Kinetics and Equilibrium Studies for Sorption of Methylene Blue onto Anoxic Activated Sludge[J].Urban Environment & Urban Ecology,2009(6). |
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| Authors: | YAN Zai-sheng WANG Shi-he WU Hui-fang KANG Xiao-kun MA Yu |
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| Institution: | YAN Zai-sheng 1,WANG Shi-he 2,WU Hui-fang 3,KANG Xiao-kun 2,MA Yu 2 (1.State Key Laboratory of Lake Science , Environment,Nanjing Institute of Geography , Limnology,Chinese Academy of Sciences,Nanjing 210008,China,2.Department of Municipal Engineering,Southeast University,Nanjing 210096,3.College of Environment,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | In order to aim at anoxic activated sludge absorption capacity and absorption mechanism for dyestuff,as well as to investigate kinetic and equilibrium of methylene blue onto anoxic activated sludge,the batch isothermal absorption experiments were carried out.The results showed that the experimental data followed a pseudo-second-order model involved a chemisorption process.The equilibrium sorption data were well described by both Langmuir and Redlich-Peterson models.The monolayer methylene blue sorption capa... |
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| Keywords: | anoxic activated sludge methylene blue biosorption kinetics equilibrium |
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