System development and environmental performance analysis of a pilot scale microbial electrolysis cell for hydrogen production using urban wastewater

2019 ◽  
Vol 193 ◽  
pp. 52-63 ◽  
Author(s):  
Jingwei Chen ◽  
Wenwen Xu ◽  
Xiaomin Wu ◽  
Jiaqiang E ◽  
Na Lu ◽  
...  
2015 ◽  
Vol 45 (11) ◽  
pp. 1223-1229 ◽  
Author(s):  
Isaac Rivera ◽  
Germán Buitrón ◽  
Péter Bakonyi ◽  
Nándor Nemestóthy ◽  
Katalin Bélafi-Bakó

2015 ◽  
Vol 1 (6) ◽  
pp. 761-768 ◽  
Author(s):  
Yinghong Feng ◽  
Yiwen Liu ◽  
Yaobin Zhang

Cheap Fe/graphite electrodes substantially enhanced hydrogen production from anaerobic waste activated sludge digestion in a microbial electrolysis cell.


RSC Advances ◽  
2019 ◽  
Vol 9 (52) ◽  
pp. 30207-30215 ◽  
Author(s):  
Wanjun Cui ◽  
Guangli Liu ◽  
Cuiping Zeng ◽  
Yaobin Lu ◽  
Haiping Luo ◽  
...  

Effective methanogenesis inhibition was achieved in a single-chamber MEC at pH 11.2 with the H2 percentage of 85–90% for 50 days.


2019 ◽  
Vol 44 (32) ◽  
pp. 17204-17213 ◽  
Author(s):  
Marina Badia-Fabregat ◽  
Laura Rago ◽  
Juan A. Baeza ◽  
Albert Guisasola

Molecules ◽  
2020 ◽  
Vol 25 (12) ◽  
pp. 2945 ◽  
Author(s):  
Daniel D. Leicester ◽  
Jaime M. Amezaga ◽  
Andrew Moore ◽  
Elizabeth S. Heidrich

Bioelectrochemical systems (BES) have the potential to deliver energy-neutral wastewater treatment. Pilot-scale tests have proven that they can operate at low temperatures with real wastewaters. However, volumetric treatment rates (VTRs) have been low, reducing the ability for this technology to compete with activated sludge (AS). This paper describes a pilot-scale microbial electrolysis cell (MEC) operated in continuous flow for 6 months. The reactor was fed return sludge liquor, the concentrated filtrate of anaerobic digestion sludge that has a high chemical oxygen demand (COD). The use of a wastewater with increased soluble organics, along with optimisation of the hydraulic retention time (HRT), resulted in the highest VTR achieved by a pilot-scale MEC treating real wastewater. Peak HRT was 0.5-days, resulting in an average VTR of 3.82 kgCOD/m3∙day and a 55% COD removal efficiency. Finally, using the data obtained, a direct analysis of the potential savings from the reduced loading on AS was then made. Theoretical calculation of the required tank size, with the estimated costs and savings, indicates that the use of an MEC as a return sludge liquor pre-treatment technique could result in an industrially viable system.


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