This paper focuses on the study of effect electrolysis activated sludge in a microbial cell (MEC) under anaerobic digestion poultry manure. was conducted using bioreactor design with and without electrodes (conventional condition). Measurements pH, redox potential (ORP), total dissolved solids were carried out, as microscopy during treatment gasometry. There an increase yields CH4 CO2 compared ...

Anaerobic digestion (AD) can produce renewable energy and reduce carbon emissions, but the conversion efficiency is still limited in some waste streams. This study tested effect of applied voltage removal for microbial electrolysis cells (MECs) treating primary sewage sludge. Two MECs were operated parallel: a MEC-0.3 V with an 0.3 MEC-OCV open circuit voltage. Both reactors inoculated seed slu...

High rates of hydrogen gas production were achieved in a two chamber microbial electrolysis cell (MEC) without a catholyte phosphate buffer by using a saline catholyte solution and a cathode constructed around a stainless steel mesh current collector. Using the non-buffered salt solution (68 mM NaCl) produced the highest current density of 131 12 A/m, hydrogen yield of 3.2 0.3 mol H2/mol acetat...

A vast quantity of untreated wastewater is discharged into the environment, resulting in contamination receiving waters. microbial electrolysis cell (MEC) a promising bioelectrochemical system (BES) for treatment and energy production. However, poor design control MEC variables may lead to inhibition system. This study explored utilization Response Surface Methodology (RSM) on synergistic aspec...

Diclofenac is one of the most commonly detected pharmaceuticals in wastewater treatment plant (WWTP) effluents and the receiving water bodies. In this study, biogenic Pd nanoparticles ('bio-Pd') were successfully applied in a microbial electrolysis cell (MEC) for the catalytic reduction of diclofenac. Hydrogen gas was produced in the cathodic compartment, and consumed as a hydrogen donor by the...

Vulnerability of water resources to nutrients led to progressively stricter standards for wastewater effluents. Modification of the conventional procedures to meet the new standards is inevitable. New technologies should give a priority to nitrogen removal. In this paper, ammonium chloride and urine as nitrogen sources were used to investigate the capacity of a microbial electrolysis cell (MEC)...

Microbial electrolysis cells (MECs) provide a high-yield method for producing hydrogen from renewable biomass. One challenge for commercialization of the technology is a lowcost and highly efficient cathode. Stainless steel (SS) is very inexpensive, and cathodes made of this material with high specific surface areas can achieve performance similar to carbon cathodes containing a platinum cataly...

Although platinum is commonly used as catalyst on the cathode in microbial electrolysis cells (MEC), non-precious metal alternatives are needed to reduce costs. Cathodes were constructed using a nickel powder (0.5–1 mm) and their performance was compared to conventional electrodes containing Pt (0.002 mm) in MECs and electrochemical tests. The MEC performance in terms of coulombic efficiency, c...

Microbial electrolysis cells (MECs) can be used to simultaneously convert wastewater organics to hydrogen and precipitate struvite, but scale formation at the cathode surface can block catalytic active sites and limit extended operation. To promote bulk phase struvite precipitation and minimize cathode scaling, a two-chamber MEC was designed with a fluidized bed to produce suspended particles a...

Carbon constraints, as well the growing hazard of greenhouse gas emissions, have accelerated research into all possible renewable energy and fuel sources. Microbial electrolysis cells (MECs), a novel technology able to convert soluble organic matter such hydrogen gas, represent most recent breakthrough. While recovery from wastewater using microbial is fascinating carbon-neutral that still most...