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| 剩余污泥中微生物絮凝剂的提取方法比较 | |
| 引用本文： | 周秀秀,戴晓晴,王春晖,亓万琦,李向蓉,夏四清,张志强. 剩余污泥中微生物絮凝剂的提取方法比较[J]. 环境工程学报, 2013, 7(8): 2808-2812 |
| 作者姓名： | 周秀秀 戴晓晴 王春晖 亓万琦 李向蓉 夏四清 张志强 |
| 作者单位： | 1. 同济大学环境科学与工程学院长江水环境教育部重点实验室,上海,200092 2. 同济大学土木工程学院,上海,200092 3. 同济大学环境科学与工程学院污染控制与资源化国家重点实验室,上海,200092 4. 同济大学环境科学与工程学院长江水环境教育部重点实验室,上海200092;同济大学环境科学与工程学院污染控制与资源化国家重点实验室,上海200092 |
| 基金项目： | 国家自然科学基金资助项目，中央高校基本科研业务费专项资金资助项目，教育部留学回国人员科技启动基金资助项目，国家大学生创新实验计划项目 |
| 摘 要： | 分别采用低浓度和高浓度剩余污泥对剩余污泥中微生物絮凝剂(MBF)的多种提取方法(超声法、树脂法、超声-树脂法、树脂-超声法、超声-树脂-超声法和树脂-超声-树脂法等)进行了比较研究.结果表明,各种复合形式的提取效果均优于超声法或树脂法单独使用的提取效果.在各种复合形式中,以树脂-超声法所提取MBF的含量最高且絮凝效果最好.此外,所提取的MBF浓度与污泥浓度正相关.从剩余污泥中直接提取MBF,在降低MBF生产成本的同时实现了污泥的资源化利用. |
| 关 键 词： | 剩余污泥 微生物絮凝剂 超声法 树脂法 复合提取 |
Comparison among extraction methods of microbial flocculant from excess sludge |
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| Zhou Xiuxiu,Dai Xiaoqing,Wang Chunhui,Qi Wanqi,Li Xiangrong,Xia Siqing and Zhang Zhiqiang. Comparison among extraction methods of microbial flocculant from excess sludge[J]. Techniques and Equipment for Environmental Pollution Control, 2013, 7(8): 2808-2812 | |
| Authors: | Zhou Xiuxiu Dai Xiaoqing Wang Chunhui Qi Wanqi Li Xiangrong Xia Siqing Zhang Zhiqiang |
| Affiliation: | 1. Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;2. College of Civil Engineering, Tongji University, Shanghai 200092, China;1. Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;1. Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;1. Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;3. State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;1. Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;3. State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China |
| Abstract: | With excess sludge samples of both low concentration and high concentration, microbial flocculant (MBF) extraction was investigated by various extraction methods, including ultrasonic method, cation resin method, ultrasonic-cation resin method, cation resin-ultrasonic method, ultrasonic-cation resin-ultrasonic method, and cation resin-ultrasonic-cation resin method. The experimental results showed that MBF extraction by each compound method was better than that by ultrasonic method or cation resin method alone. Among the compound methods, cation resin-ultrasonic method was the best one, which obtained the highest MBF concentration as well as the best flocculating efficiency. In addition, the extracted MBF concentration was positively correlated with the concentration of the excess sludge. MBF extraction from excess sludge would not only save the cost of MBF production, but also realize the resource reuse of excess sludge. |
| Keywords: | excess sludge microbial flocculant ultrasonic method cation resin method compound extraction |
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