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| 微波预处理污泥上清液为燃料的微生物燃料电池的影响因素研究 | |
| 引用本文： | 方丽,刘志华,李小明,杨麒,郑峣,曾光明.微波预处理污泥上清液为燃料的微生物燃料电池的影响因素研究[J].环境工程学报,2011,5(4):930-934. |
| 作者姓名： | 方丽 刘志华 李小明 杨麒 郑峣 曾光明 |
| 作者单位： | 1. 湖南大学环境科学与工程学院,长沙,410082;长沙环境保护职业技术学院环境工程系,长沙,410082;环境生物与控制教育部重点实验室(湖南大学),长沙,410082 2. 湖南大学环境科学与工程学院,长沙,410082;环境生物与控制教育部重点实验室(湖南大学),长沙,410082 3. 湖南大学环境科学与工程学院,长沙,410082;广西大学环境学院,南宁,530004;环境生物与控制教育部重点实验室(湖南大学),长沙,410082 |
| 基金项目： | 国家自然科学基金资助项目(50478054)；新世纪优秀人才支持计划项目(NCET-04-0770) |
| 摘 要： | 以微波预处理的剩余污泥上清液做为燃料,经过30 d成功地启动了单室无膜燃料电池.考察了可能影响输出功率密度的相关因素.结果表明,电池阳极面积越大,输出功率密度反而越小.阴阳极距离从5 cm缩小到0.5 cm时,输出功率密度先增加后降低,在距离为2 cm时,输出功率密度达到最大值282.7 mW/m2,说明阴阳极距离过近... |
| 关 键 词： | 微生物燃料电池 微波预处理 影响因素 功率密度 库仑效率 |
| 收稿时间： | 2/1/2010 12:00:00 AM |
Influencing factors in microbial fuel cells using supernatant fluid of microwave pretreated sludge as fuel |
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| Fang Li,Liu Zhihu,Li Xiaoming,Yang Qi,Zheng Yao and Zeng Guangming.Influencing factors in microbial fuel cells using supernatant fluid of microwave pretreated sludge as fuel[J].Techniques and Equipment for Environmental Pollution Control,2011,5(4):930-934. | |
| Authors: | Fang Li Liu Zhihu Li Xiaoming Yang Qi Zheng Yao and Zeng Guangming |
| Institution: | 1. College of Environmental Science and Engineering, Hunan University, Changsha 410082, China;2.Department of Environmental Engineering, Changsha Environmental Protection Vocational College, Changsha 410082, China;4. Key Laboratory of Environmental Biolog,1. College of Environmental Science and Engineering, Hunan University, Changsha 410082, China;4. Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China,1. College of Environmental Science and Engineering, Hunan University, Changsha 410082, China;3. College of Environment, Guangxi University, Nanning 530004, China;4. Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministr,1. College of Environmental Science and Engineering, Hunan University, Changsha 410082, China;4. Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China,1. College of Environmental Science and Engineering, Hunan University, Changsha 410082, China;4. Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China and 1. College of Environmental Science and Engineering, Hunan University, Changsha 410082, China;4. Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China |
| Abstract: | A single-chamber and membrane-less microbial fuel cell was successfully started up using the supernatant fluid of microwave pretreated sludge as inoculums within 30 days. Some relevant factors which may affect output density of the microbial fuel cell were studied. The results indicated that the larger anode area of the cell made the output power density smaller. When the distance between cathode and anode decreased from 5 cm to 0.5 cm, the output power density first increased and then decreased, which mainly because the diffuseness of oxygen from the air-cathode may affect active of the anaerobic bacteria on anode. The maximum output density (282.7 mW/m2) was observed while the distance was 2 cm. When using NaCl as an ionic additive, it had a corresponding decrease in internal resistance with the dosage increased resulting an increase in output power density the maximum of which was 362.6 mW/m2. The output power density of the microbial fuel cell was successfully raised to 387.6 mW/m2 and the maximum coulombic efficiency was up to 79.0% under optimal experimental conditions, which indicated the performance of MFC could be effectively improved by the microwave pretreatment. |
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