Treatment of domestic sewage with anoxic/oxic membrane-less microbial fuel cell with intermittent aeration

Electricity production and sludge reduction by integrating microbial fuel cells in anoxic-oxic process

“…The COD removal of the MFCs-A/O system was varied between 48.1 and 87.5% (mean = 75.6%), which was higher than those for the control system (39.8-84.9% [mean = 72.2%]). Although the COD removal in two systems was slightly lower than in previous studies (Wang and Chen, 2016;Zhang et al, 2016), the COD of the effluent at the end of experiment was approximately 40 mg/L, which meets the Chinese Discharge Standard (GB18918-2002) (China State EPA, 2002). The NH 4 + -N removal was another important function for A/O process (Chan et al, 2009;Rasool et al, 2014) and the results of this study are summarized in Fig.…”

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

“…For the calculation, a value of 0.6 W h g −1 -COD was taken as the energy cost to remove the COD via aeration. 29 The value is an indicator to determine whether the MFC's operational mode should be focused on power generation or COD removal, but it varies depending on the installation process and post-COD-removal treatments such as intermittent aeration 55 and usage of anaerobic membrane bioreactors. 20 Specifically, if the energy requirement is less than the EGE of the MFC, the MFC can be optimized for power generation.…”

Recent progress in microbial fuel cells using substrates from diverse sources

“…Autotrophic denitrification uses inorganic carbon as carbon source (e.g., bicarbonates), and an electron source required to activate their metabolism [ 122 ]. A membrane-less MFC study was conducted to assess its efficacy in biodegradation, electricity generation, and nitrogen removal [ 123 ]. The cathode chamber of the MFC was intermittently supplied with air, and the performance was assessed in both open- and closed-circuit operations.…”