微生物燃料电池
微生物
废水
制浆造纸工业
细菌生长
细菌
食品科学
化学
阳极
废物管理
环境科学
环境工程
生物
电极
物理化学
遗传学
工程类
作者
Mohammad Asaduzzaman Chowdhury,Shamim Ahmed,Nayem Hossain,Masud Rana,Hasanuzzaman Aoyon,Ramjan Ali,Syed Rokibul Islam,Jobayer Hossain,Deep Chowdhury
标识
DOI:10.1016/j.renene.2023.119497
摘要
This study uses the microbial electrochemical process to produce energy from wastewater. The bacterial growth in sewage has been controlled by applying molasses, vegetables and waste coffee as dosing materials. High-conductive silver metal has been used as an anode, whereas graphite has been used as a cathode. An agar salt membrane has been used as a separator to ensure high hydrogen-ion exchange. During bacterial culture, it is revealed that 21,600,000 cfu/ml, 14,800,000 cfu/ml, and 38,700,000 cfu/ml number of bacteria is observed for molasses, vegetable protein and waste coffee, respectively. In each dosing, E.coli, S.aureus, and Salmonella sp. were identified. The bacterial growth highly influenced electrical energy production in this method. The wastage of coffee produced more energy and grew more bacteria. Waste coffee had a maximum current density of 809.40 mA/m2 and a maximum power density of 10622.496 mW/m2, respectively. In contrast, the minimum current and power density values, 166.15 mA/m2 and 408.726 mW/m2, were attained, respectively. The produced energy is much higher than the information available in the literature. The applied method can be used in various sectors to generate electrical energy.
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