BACKGROUND This work develops a simplified mathematical model to predict the performance of bioelectrochemical system (BES), first working as microbial fuel cell (MFC) and then electrolysis (MEC), for recovery dissolved metals (Fe, Cu, Sn, Ni) from simulated industrial wastewater. Experimental data previous were used starting points modelling. Wastewater was catholyte contained Cu2+ Fe3+ (500 m...

Microbial electrolysis cells (MECs) have been explored for various applications, including the removal of industrial pollutants, wastewater treatment chemical synthesis, and biosensing. On other hand, MEC technology is still in its early stages faces significant obstacles regarding practical large-scale implementations. MECs are used energy generation hydrogen peroxide, methane, hydrogen/biohyd...

Cellulose fermentation wastewaters (FWWs) contain short chain volatile fatty acids and alcohols, but they also have high concentrations of proteins. Hydrogen gas production from FWW was examined using continuous flow microbial electrolysis cells (MECs), with a focus on fate of the protein. H2 production rates were 0.49±0.05 m(3)/m(3)-d for the FWW, compared to 0.63±0.02 m(3)/m(3)-d using a synt...

BACKGROUND The anode material of bioelectrochemical systems (BES) is crucial because its characteristics directly affect electron transfer from the bacteria to anode. To assess usefulness, each must undergo evaluation under relevant operating conditions, as well a complete electrochemical characterization. RESULTS Five carbonaceous materials – carbon brush (CB), granules (CG), thicker felt (CF1...

Microbial electrolysis cells (MECs) are potential candidates for sustainable wastewater treatment as they allow for recovery of the energy input by producing valuable chemicals such as hydrogen gas. Evaluating the effectiveness of MEC treatment for different wastewaters requires new approaches to quantify performance, and the establishment of specific procedures and parameters to characterize t...

*Correspondence: Antonio Morán, Chemical and Environmental Bioprocess Engineering Group, Natural Resources Institute (IRENA), University of León, Avda. de Portugal 41, León 24009, Spain e-mail: [email protected] Globally, large amounts of electrical energy are spent every year for domestic wastewater (dWW) treatment. In the future, energy prices are expected to rise as the demand for energy reso...

BACKGROUND This work studied the treatment of and metal recovery from a synthetic acid mine drainage (AMD) containing 500 mg L−1 copper (Cu2+) iron (Fe+3), 50 nickel (Ni2+) tin (Sn2+) by using bioelectrochemical system (BES). The presence electroactive bacteria improved performance such reactor configuration, contrast with systems abiotic anodes. RESULTS Operating as microbial fuel cell (MFC), ...

Two methods were examined to improve methane production efficiency in anaerobic digestion (AD) based on adding a large amount of surface area using single electrically conductive carbon brush, or by electrodes as done microbial electrolysis cells (MECs) form hybrid AD-MEC. To examine the impact relative electrodes, AD reactors fitted with brush without (FB), half two an applied voltage (0.8 V) ...

As the energy demand is continuously rising with increase in population, use of fossil fuels also increasing at same rate. These release greenhouse gases (GHG) which are harmful to human health and our environmental these expected exhaust near future. This eventually has led an emerging need shift a more reliable, sustainable, clean source. Biohydrogen as fuel potential alternative, hydrogen pr...