| 厌氧颗粒污泥藻酸盐对铜离子的吸附研究 |
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| 引用本文： | 王琳,张海玲,林跃梅. 厌氧颗粒污泥藻酸盐对铜离子的吸附研究[J]. 环境工程学报, 2010, 4(1): 31-34 |
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| 作者姓名： | 王琳 张海玲 林跃梅 |
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| 作者单位： | 中国海洋大学环境科学与工程学院,青岛,266100;中国海洋大学环境科学与工程学院,青岛,266100;中国海洋大学环境科学与工程学院,青岛,266100 |
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| 基金项目： | 山东省自然科学基金资助项目（Z2007B07）；山东省优秀中青年科学家奖励基金（2008BS06013） |
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| 摘 要： | 从厌氧颗粒污泥中成功提取出细菌藻酸盐并制备成藻酸钙吸附剂,研究其对水中Cu~(2+)的吸附性能。实验结果表明,接触时间、Cu~(2+)初始浓度和溶液初始pH是影响Cu~(2+)吸附性能的重要因素。吸附等温线研究表明,Langmuir模型比Freundlich模型能更好地描述吸附过程。Cu~(2+)在藻酸钙上的吸附动力学过程可以很好地用Pseudo二级动力学方程来描述。以100 mmol/L HCI为解吸剂,可有效洗脱藻酸钙上95%的Cu~(2+),实现Cu~(2+)的回收。
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| 关 键 词： | 铜 细菌藻酸盐 生物吸附 厌氧颗粒污泥 |
| 收稿时间： | 2009-03-01 |
Copper recovery by bacterial alginate extracted from anaerobic granular sludge |
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| Wang Lin,Zhang Hailing and Lin Yuemei. Copper recovery by bacterial alginate extracted from anaerobic granular sludge[J]. Techniques and Equipment for Environmental Pollution Control, 2010, 4(1): 31-34 |
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| Authors: | Wang Lin Zhang Hailing Lin Yuemei |
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| Affiliation: | College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China,College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China and College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China |
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| Abstract: | The biosorption property of copper by the dried Ca-alginate extracted from anaerobic granular sludge was investigated in batch system.The experimental results showed that the contact time,Cu~(2+) initial concentration and solution initial pH had significant effects on Cu~(2+) biosorption capacity.Accumulation of Cu~(2+) followed Langmuir adsorption isotherm better than Freundlich adsorption isotherm.The biosorption kinetics was described by the Pseudo-second-order equation quite well.The Ca-sludge alginate ... |
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| Keywords: | copper bacterial alginates biosorption anaerobic granular sludge |
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