首页> 外文期刊>International Journal of Electrochemical Science >Methanogenesis Control using 2-Bromoethanesulfonate for Enhanced Power Recovery from Sewage Sludge in Air-cathode Microbial Fuel Cells
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Methanogenesis Control using 2-Bromoethanesulfonate for Enhanced Power Recovery from Sewage Sludge in Air-cathode Microbial Fuel Cells

机译:使用2-溴乙烯磺酸盐对气阴极微生物燃料电池污水污泥增强功率回收的甲烷发生

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Coulombic efficiencies (CE) of microbial fuel cells (MFCs) treating real organic wastes are generallylow. Methanogenesis is a major factor reducing CE by diverting electrons to methanogens rather thanelectrochemically active bacteria. In this study, batch tests were conducted to enhance power recoveryin sludge-fed MFCs by using 2-bromoethanesulfonate (BES) to control methanogenesis. Resultsshowed that 0.5 mM BES effectively inhibited methane production in the sludge MFCs. In thepresence of BES, the MFC reactor yielded a maximum voltage of 0.62 V and a maximum power2 density of 115 mW/m , and CE increased from 4.1% to 7.8%. The cyclic voltammetry and DGGEanalyses showed different catalytic behavior and microbial community of anode biofilm as aconsequence of BES addition. As a first report using a complex feed, this study demonstrated thatpower recovery from complex organic wastes in MFCs can be improved by methanogenesissuppression with low dosage of BES.
机译:治疗真实有机废物的微生物燃料电池(MFCs)的库仑效率(CE)是一般的。甲烷化是通过将电子转移到甲酸酯而非电化学活性细菌来减少CE的主要因素。在该研究中,通过使用2-溴乙烯酸磺酸盐(BES)来控制批量试验以增强功率回收液污泥的MFC以控制甲烷。结果表明,0.5毫米BES有效抑制污泥MFC中的甲烷产量。在BES的假期中,MFC反应器产生的最大电压为0.62V,最大功率2密度为115mW / m,CE从4.1%增加到7.8%。循环伏安法和DggeAnalyses显示出不同的催化行为和阳极生物膜的微生物群落作为BES的合适。作为使用复杂饲料的第一报告,本研究表明,通过BES的低剂量,可以改善MFC中复杂有机废物中的复杂有机废物。

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