用于同时处理食物废油和含铜废水的高性能细菌强化双室微生物燃料电池。

IF 3.9 2区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Scientific Reports Pub Date : 2024-10-06 DOI:10.1038/s41598-024-74856-w

Xiafei Yin, Lixue Liu, Wei Shao, Min Ai, Guobin Liang

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引用次数: 0

摘要

微生物燃料电池（MFC）利用阳极室内微生物的新陈代谢作用，将废水中的化学能转化为电能。为了提高 MFC 的发电性能和化学需氧量（COD）去除效率，在双隔室 MFC 的阳极室中加入了酸性链格单胞菌。在此过程中，酸性腺单胞菌促进了食品废油中邻苯二甲酸二（2-乙基己基）酯等大分子的降解。此外，产生的电能还能将阴极室内含铜废水中的 Cu2+ 还原成铜单质。MFC 的最大功率密度为 49.5 ± 3.5 mW/m2，对 COD 和 Cu2+ 的最大去除率分别为 63.5 ± 5.8% 和 96.5 ± 1.0%，Cu2+ 被还原成砖红色的 Cu 单体。这项研究为同时实施食品废油处理和金属资源回收提供了启示。

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High-performance bacterium-enhanced dual-compartment microbial fuel cells for simultaneous treatment of food waste oil and copper-containing wastewater.

Microbial fuel cells (MFCs) use the metabolic actions of microorganisms in an anode chamber to convert the chemical energy from wastewater into electrical energy. To improve the MFC power generation performance and chemical oxygen demand (COD) removal efficiency, Stenotrophomonas acidaminiphila was added to the anode chamber of a dual-compartment MFC. In this process, Stenotrophomonas acidaminiphila promotes the degradation of macromolecules such as bis(2-ethylhexyl) phthalate in food waste oil. Additionally, the generated electrical energy reduced Cu²⁺ in the copper-containing wastewater in the cathode chamber to Cu monomers. The maximum power density of the MFC was 49.5 ± 3.5 mW/m², the maximum removal efficiencies of COD and Cu²⁺ were 63.5 ± 5.8% and 96.5 ± 1.0%, respectively, and Cu²⁺ was reduced to brick-red Cu monomers. This study provides insights into the simultaneous implementation of food waste oil treatment and metal resource recovery.

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来源期刊

Scientific Reports Natural Science Disciplines-

CiteScore

7.50

自引率

4.30%

发文量

19567

审稿时长

3.9 months

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