Abstract：
This study assessed the viability of an anion-exchange microbial fuel cell (MFC) for extracting electricity from palm oil mill effluent (POME), a major pollutant in palm-oil producing regions due to increasing demand. The MFC incorporated a tubular membrane electrode assembly (MEA) with an air core, featuring a carbon-painted carbon-cloth cathode, an anion exchange membrane (AEM), and a nonwoven graphite fabric (NWGF) anode. An additional carbon brush (CB) anode was placed adjacent to the tubular MEA. The MFC operated under semi-batch conditions with POME replacement every 7 days. Results showed superior performance of the AEM, with the highest power density (Pmax) observed in POME-treated MFCs. Current and power density increased with CB addition; the best chemical oxygen demand (COD) removal efficiency reached 73 %, decreasing from 1249 to 332 mg/L with three CBs. The Pmax was 0.18 W/m-2(-|-) with 1000 mg/L COD and three CBs, dropping to 0.0031 W/m-2(-|-) without CB and at 410 mg/L COD. Anode resistance, calculated using organic matter supplementation, COD, and anode surface area, decreased with increased COD or surface area, improving electricity production. AEM and CB compatibility synergistically enhanced MFC performance, offering potential for POME wastewater treatment and energy recovery.
摘要：
这项研究评估了阴离子交换微生物燃料电池（MFC）从棕榈油厂废水（POME）中提取电力的可行性。由于需求的增加，棕榈油产区的主要污染物。MFC结合了带有空气芯的管状膜电极组件（MEA），具有碳漆碳布阴极，阴离子交换膜(AEM)，和非织造石墨织物(NWGF)阳极。将另外的碳刷(CB)阳极放置在管状MEA附近。MFC在半间歇条件下操作,每7天更换POME。结果显示AEM性能优异，在POME处理的MFC中观察到最高的功率密度(Pmax)。电流和功率密度随CB的添加而增加；最佳化学需氧量（COD）去除效率达到73％，用三个CBs从1249毫克/升降低到332毫克/升。Pmax为0.18W/m-2（-|-），COD为1000mg/L，3个CBs，降至0.0031W/m-2(-|-)，不含CB，COD为410mg/L。阳极电阻,使用有机物补充剂计算，COD,COD和阳极表面积，随着COD或表面积的增加而降低，改善电力生产。AEM和CB兼容性协同增强MFC性能，为POME废水处理和能源回收提供潜力。
