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MFC的除As(Ⅲ)产电性能及其优势微生物种群
The detoxification of As(Ⅲ), electricity generation and microbial community in microbial fuel cell
【摘要】 为研究微生物燃料电池(microbial fuel cell, MFC)对含As(Ⅲ)废水的解毒效果和产电能力,以As(Ⅲ)和乙酸钠为阳极底物,对不同As(Ⅲ)初始浓度下MFC的产电性能、As(Ⅲ)氧化情况及其微生物群落进行分析.结果表明,该MFC可有效氧化As(Ⅲ)以降低毒性,同时产生稳定电压,其最大功率密度为1.368 6 W·m-3, As(Ⅲ)去除率达75.0%,变形菌、长绳菌、不动杆菌等为该MFC上的优势种群.
【Abstract】 In order to study the detoxification effect and electricity production capacity of microbial fuel cell(MFC) on As(Ⅲ) containing wastewater, by using As(Ⅲ) and sodium acetate as the anode substrate of the dual-chamber microbial fuel cell, the electricity production performance and As(Ⅲ) oxidation at different initial concentrations of As(Ⅲ) and its microbial community are analyzed. The results show that MFC can effectively oxidize As(Ⅲ) to reduce toxicity and produce stable voltage. The maximum power density is 1.368 6 W·m-3, and the As(Ⅲ) removal rate is 75.0%. Proteobacteria, Longilinea and Acinetobacter are dominant populations in the microbial community.
【Key words】 microbial fuel cells; electricity production performance; arsenic removal rate; microbial flora;
- 【文献出处】 扬州大学学报(自然科学版) ,Journal of Yangzhou University(Natural Science Edition) , 编辑部邮箱 ,2019年03期
- 【分类号】X703;X172
- 【下载频次】121