Journal
CURRENT OPINION IN ELECTROCHEMISTRY
Volume 19, Issue -, Pages 14-19Publisher
ELSEVIER
DOI: 10.1016/j.coelec.2019.09.001
Keywords
Bioelectrochemical systems; Coulombic recovery; Normalized energy recovery; Specific energy consumption; Pilot scale
Funding
- National Science Foundation [1603190]
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1603190] Funding Source: National Science Foundation
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Bioelectrochemical systems (BESs) have been intensively studied in the past decade, but precise understanding of BESs performance is hindered by unclear definition of several key parameters. Herein, we analyze and discuss three sets of terms about conversion efficiency, energy performance, and pilot scale. It is suggested that 'Coulombic recovery' can avoid the misleading results because of different organic removals, compared with 'Coulombic efficiency.' Power density is not a suitable term to describe energy performance of BESs, and energy production/consumption should be reported in the energy unit such as kWh. Pilot-scale BESs should meet several criteria, including hydraulic capacity, use of actual wastewater, non-laboratory condition, and long-term operation. Proper use of those terms is strongly encouraged and will be critically important to BESs research and development.
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