Microbial fuel cell (MFC) has been utilized for energy generation and wastewater treatment since many decades. Due to the better performance of MFC concerning energy generation and wastewater treatment, the current study was conducted. The aim of current study is to utilize spent wash as anode feed along with impact of various parameters on treatment as well as energy production. Saccharomyces cerevisiae sp. was utilized as biocatalyst while 180 μmol l⁻¹ of methylene blue as a mediator in anode and 350 μmol l⁻¹ potassium ferricyanide was used as an oxidizing agent in cathode chamber for treatment of spent wash. All experiments were carried out through balancing the volume of 1 l for power generation from spent wash in MFC under an optimized parameter of 10% agarose, pH 8, aeration rate 200 ml/min, and 50% substrate concentration. The maximum current and a power density obtained at an optimized concentration are approximately 54.21 mA/m² and 71.12 mW/m², respectively. The maximum voltage of 830mV (3.3 mA) was obtained per liter of processed spent wash. The removal of COD and BOD from effluent MFC was 94% remarkably. These results demonstrate that MFC can simultaneously generate electricity and remove COD effectively from spent wash.

数十年来，微生物燃料电池（MFC）已被用于能源生产和废水处理。由于MFC在能源生产和废水处理方面具有更好的性能，因此进行了当前的研究。当前研究的目的是利用废洗液作为阳极进料，以及各种参数对处理以及能量产生的影响。酿酒酵母属。被用作生物催化剂，而180μmoll ^-1的亚甲基蓝作为阳极介体和350μmoll ^-1铁氰化钾在阴极室中用作氧化剂，用于处理废液。所有实验都是通过平衡MFC中用过的洗涤液发电的1 l体积来进行的，优化条件为10％琼脂糖，pH 8，通气速度200 ml / min和50％底物浓度。在最佳浓度下获得的最大电流和功率密度分别约为54.21 mA / m ²和71.12 mW / m ²。每升经过处理的废洗液可得到830mV（3.3 mA）的最大电压。从流出的MFC中去除COD和BOD的比例显着为94％。这些结果表明，MFC可以同时发电并有效地从废洗液中去除COD。