Overuse of antibiotics impacts environmental health worldwide. In this paper, the effect on the performance of microbial fuel cells (MFCs) under treatments with sulfonamides (SAs) was investigated. The results showed that when MCFs were treated with sulfamonomethoxine (SMM), the maximum power density was higher (20.95 mW/m²) than when treated with sulfadiazine (SDZ) (19.79 mW/m²). The power density of MFCs gradually decreased with increased concentration of SAs. Microbial activity analysis showed that SAs had negative effects on bacterial growth, riboflavin secretion and cell attachment on the MFCs anode. The power density of MFCs at different pH values was in order as follows: pH 6 > pH 7 > pH 8 > pH 5 > pH 9, where the highest was 22.90 mW/m² at pH 6. Electrochemical analysis showed that conditions favorable to the protonation of SMM also had a positive effect on the electrical performance of MFCs. These findings could provide the basis for uncovering the mechanism by which SAs affect electricity generation in MFCs, and demonstrates the feasibility for the efficient degradation of SAs and power generation.

中文翻译：

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磺酰胺对微生物燃料电池中腐烂希瓦氏菌发电的影响

过度使用抗生素会影响全球环境健康。本文研究了磺酰胺（SAs）处理对微生物燃料电池（MFCs）性能的影响。结果表明，当用磺胺二甲氧嘧啶（SMM）处理MCF时，最大功率密度（20.95 mW / m ²）比用磺胺嘧啶（SDZ）处理的最大功率密度（19.79 mW / m ²）高。MFC的功率密度随着SAs浓度的增加而逐渐降低。微生物活性分析表明，SAs对MFCs阳极上的细菌生长，核黄素分泌和细胞附着有负面影响。不同pH值下MFC的功率密度顺序如下：pH 6> pH 7> pH 8> pH 5> pH 9，最高为22.90 mW / m ²在pH值为6的条件下。电化学分析表明，有利于SMM质子化的条件也对MFC的电性能具有积极影响。这些发现可为揭示SA影响MFCs发电的机理提供基础，并证明SA的有效降解和发电的可行性。