RT info:eu-repo/semantics/article
T1 Assessing anodic microbial populations and membrane ageing in a pilot microbial electrolysis cell
A1 San Martin Bécares, María Isabel
A1 Sotres, Ana
A1 Alonso García, Raúl Marcos
A1 Díaz-Marcos, Jordi
A1 Morán Palao, Antonio
A1 Escapa González, Adrián
A2 Bioquimica y Biologia Molecular
K1 Bioquímica
K1 Bioelectrochemical system
K1 Scaling-up
K1 Cation exchange membrane
K1 Waste valorization
K1 Anodic biofilm
K1 2302 Bioquímica
AB [EN] First large-scale experiences of bioelectrochemical systems (BES) are underway. However, there is still little knowledge on how the different elements that integrate a BES behave in near real-life conditions. This paper aims at assessing the impact of long-term operation on the cation exchange membrane and on the anodic biofilm of two 16 L Microbial Electrolysis Cells (MEC) designed for hydrogen production and ammonia recovery from pig slurry. Membrane deterioration was examined by physical, chemical and microscopy techniques at different locations, revealing a strong attachment of microorganisms and a significant decay in membrane properties such as ion exchange capacity and thermal stability. Anode microbial communities did not show a dramatic shift in the eubacteria composition at different sampling areas, although the relative abundance of some bacterial groups showed a clear vertical stratification. After 100 days of continuous operation, MEC performance did not declined significantly maintaining ammonium transport rates and H2 production rates of 15.3 gN d−1 m−2 and 0.2 LH2·L−1reactor·d−1 respectively.
PB Elsevier
SN 0360-3199
LK https://hdl.handle.net/10612/18155
UL https://hdl.handle.net/10612/18155
NO San-Martín, M. I., Sotres, A., Alonso, R. M., Díaz-Marcos, J., Morán, A., & Escapa, A. (2019). Assessing anodic microbial populations and membrane ageing in a pilot microbial electrolysis cell. International Journal of Hydrogen Energy, 44(32), 17304-17315. https://doi.org/10.1016/J.IJHYDENE.2019.01.287
NO Bioelectrochemical system
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 30-may-2024