湿地型微生物燃料电池运行实验研究

发布时间：2018-03-07 06:18

本文选题：微生物燃料电池　切入点：湿地植物　出处：《环境科学学报》2017年10期 　论文类型：期刊论文

【摘要】：为了探究湿地植物、电极间距对湿地型生物燃料产电及污水净化效能的影响,本文选用鸢尾、绿萝、富贵竹和观音竹4种湿地植物构建湿地型生物燃料电池与相同结构无种植湿地植物的燃料电池进行对照.结果表明,有植物的微生物燃料电池的产电性能优于无植物的微生物燃料电池;4种植物微生物燃料电池功率密度由高到低的顺序依次为:鸢尾绿萝富贵竹观音竹.相同绿萝植物的湿地型微生物燃料电池在不同的电极间距下的产电性能不同,间距越小输出电压和功率密度越大.当电极距离为10 cm时,最大功率密度达2.55 W·m~(-3),比20 cm和30 cm分别高约30%和50%.4种湿地植物的湿地型微生物燃料电池对COD的去除率均达80%以上,COD去除效率由高到低的顺序依次为:鸢尾富贵竹观音竹绿萝.
[Abstract]:In order to investigate the effect of electrode spacing on the power generation and sewage purification efficiency of wetland biofuel, Iris and Lactuca roxburghii were selected in this paper. The constructed wetland biofuel cells were compared with those without planting wetland plants with the same structure. The power density of plant microbial fuel cell is higher than that of non-plant microbial fuel cell. The order of power density of plant microbial fuel cell from high to low is: Iris rotundifolia var. nobilis. The electrical properties of plant wetland microbial fuel cells are different at different electrode spacing. When the distance between the electrodes is 10 cm, the output voltage and power density are larger. The maximum power density was 2.55 W 路mG-1 ~ (-3), which was about 30% and 50.4% higher than 20 cm and 30 cm, respectively, and the removal efficiency of COD in wetland microbial fuel cells was above 80%. The order of removal efficiency from high to low was: Iris sativus, Phyllostachys japonicus.
【作者单位】：哈尔滨工业大学能源科学与工程学院;中国海洋大学环境科学与工程学院;
【基金】：国家留学基金管理委员会资助项目(No.20120370391)~~
【分类号】：TM911.45;X703

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