Simultaneous power generation and sewage sludge stabilization using an air cathode-MFCs

Effects of pre‐treated sludge on sludge stabilization and electricity generation in microbial fuel cell

“…In this figure, a parallel trend with electricity generation was obtained with the highest value of 0.008 mW, the lowest value of 0.00036 mW, and the average value of 0.0016 mW. When the current density given in Figure 5c was examined, a current density of 0.02 mA/cm 2 in the first operational days and the average current density throughout the system were determined as 0.08 mA/cm 2 (2020), 5 when MLSS concentration was 10,000 mg/L maximum power density and current density were 26.65 and 473.5 mA/m 3 .…”

“…Studies show that sewage sludge can be stabilized by MFC and the organic material can be converted directly into electricity. 5 The use of biomass in MFC appears to be a useful approach for sludge treatment and also offers an alternative energy source. 6 Dentel et al…”

Simultaneous organic carbon, nitrogen removal, and electricity generation in a novel A4-MFC system for the treatment of leachate from a composting site: performance and modeling

“…8 The shortcomings of conventional methods such as long hydraulic retention time (HRT), building of big digesters, low degradation efficiency (less than 50%), high concentration of ammonium in effluent, and release of greenhouse gas that subsequently need further treatment have motivated researchers to apply a new and cost effectiveness technology, namely microbial fuel cells (MFCs). 17 The MFCs in variety of congurations with the aim of simultaneous COD, nitrogen components removal, and power generation have been used to treat different type of wastewaters such as domestic wastewater, 18,19 swine wastewater, 20 dairy-cow waste slurry, 21 and landll leachate 22 with their advantages such as requiring very little energy, reducing the costs and challenges associated with sludge treatment and disposal in wastewater treatment plants, producing less sludge in comparison with conventional processes. 14,17,23,24 The system has been developed to convert the chemical energy of organic compounds to bioelectrical current using bacteria as biocatalysts.…”

“…17 The MFCs in variety of congurations with the aim of simultaneous COD, nitrogen components removal, and power generation have been used to treat different type of wastewaters such as domestic wastewater, 18,19 swine wastewater, 20 dairy-cow waste slurry, 21 and landll leachate 22 with their advantages such as requiring very little energy, reducing the costs and challenges associated with sludge treatment and disposal in wastewater treatment plants, producing less sludge in comparison with conventional processes. 14,17,23,24 The system has been developed to convert the chemical energy of organic compounds to bioelectrical current using bacteria as biocatalysts. 25,26 As the compost leachate contains high energy recovery potential, MFCs can be used as a promising technique by integrating the system of anaerobic and aerobic processes to extract energy and also the simultaneous removal of COD and nitrogen components from the leachate.…”