Bioelectricity production from municipal leachate in a microbial fuel cell: Effect of two cathodic catalysts

Differences in Contaminants Removal Efficiency and Electricity Production in Disposing Leachate with Chemical-Cathode and Aerobic Bio-Cathode MFC

“…After the MFCs ran for 45 days, COD decreased respectively to 2752.4 mg l −1 and 2261.7 mg l −1 from initial 6332.1 mg l −1 . Furthermore, because NH 4 + diffused from anode to cathode, and NH 3 -N net removal rates were 53.8 % and 58.1 %, respectively. MFC with the aged landfill leachate can treat hazardous wastewater during power generation and has far-reaching significance on future environmental protection.…”

“…The organic substances may come from dye wastewater, 1 palm oil mill effluent, 2 or landfill leachates. 3,4 In most MFCs, the microbial communities are phylogenetically diverse, and there is the emergence of new bacterial community interactions on the basis of interspecies electron transfer. 5 MFC is usually divided into two types, non-biological cathode microbial fuel cell (NMFC) and bio-cathode microbial fuel cell (BMFC).…”

Bioelectrochemical system for landfill leachate treatment – challenges, opportunities, and recommendations

“…The information about energy recovery helps to establish an energy balance, which can show us how far we are from an energy-neutral (or energy-positive) treatment process using BES. In a recent study, the diluted leachate showed a significant NER value due to the low availability of organic matter for electrical energy (Vazquez-Larios et al, 2014). Leachate-generated NER value was lower than the industrial wastewater, however, NER values were found to be high comparing to domestic wastewater.…”

Leachate treatment using anoxic/oxic-bioelectrochemical reactor with intermittent aeration

“…BES can efficiently remove organic compounds from wastewater within a reasonable time; however, the anaerobic condition in the anode of a BES does not effectively facilitate nitrification reaction [14]. Most prior BES studies focused on simultaneous energy generation and COD removal from landfills leachate, but paid little attention to expend efforts to improve nitrogen removal [15][16][17][18][19][20][21][22]. In these studies, the single-chambered MFC or double-chambered MFC consisting of proton exchange membrane (PEM), catalyst-doped cathode and solutions with electron acceptors were often used.…”