Effect of ammonium and COD concentrations on the performance of fixed-bed air-cathode microbial fuel cells treating reject water

Estimation of total energy requirement for sewage treatment by a microbial fuel cell with a one-meter air-cathode assuming Michaelis–Menten COD degradation

“…In most cases, these values are independently determined by averaging measurements under different operational conditions despite reports that the operational parameters themselves affect the performance. Specifically, influents with higher COD resulted in higher COD-RE 24,25 and power density 25,26 but lower CE. 15,27 Increasing the HRT caused further reductions in the COD and current and power densities.…”

Determination of Electrogenic Potential and Removal of Organic Matter from Industrial Coffee Wastewater Using a Native Community in a Non-Conventional Microbial Fuel Cell

“…The organic matter degradation rates observed in the non-conventional MFCs evidence that the native microbial communities in CWW are adapted for the catabolism of this complex substrate, and they can remove large amounts of organic matter with a high initial COD load in a short period of time. In general, studies of the electrogenic potential derived from the consumption of organic molecules focus on electrogenic metabolism from simple carbon sources, such as glucose, or salts, such as sodium or potassium acetate [51][52][53]. The organic components of CWW are possibly transformed from large carbohydrates, such as cellulose or starch, to simple sugars, such as glucose and fructose.…”

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

“…Before using the electrodes, they were washed for 1 hour in 1 M hydrochloric acid (HCl), 20 minutes in distilled water, 1 hour in 1 M sodium hydroxide, and then washed again with distilled water. 24,35 Before using the membrane in order to increase the porosity, it is necessary to pre-treat it. For this purpose, the membrane is rst immersed in a solution of hydrogen peroxide (H 2 O 2 ) (30% v/v) and distilled water.…”

“…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.…”