TY - JOUR
T1 - Microbial electrochemical systems for hydrogen peroxide synthesis
T2 - Critical review of process optimization, prospective environmental applications, and challenges
AU - Chung, Tae Hyun
AU - Meshref, Mohamed N.A.
AU - Hai, Faisal I.
AU - Al-Mamun, Abdullah
AU - Dhar, Bipro Ranjan
N1 - Funding Information:
The authors acknowledge financial supports from the University of Alberta (Faculty of Engineering Start-up Grant), Natural Sciences and Engineering Research Council of Canada Discovery Grant (# 2017-05608 ), and Alberta Innovates Graduate Student Scholarships program (AIGSS). Special thanks also go to current and former lab members of Dr. Dhar's research group in the Department of Civil and Environmental Engineering at the University of Alberta for their support through helpful discussion and review.
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/10
Y1 - 2020/10
N2 - Hydrogen peroxide (H2O2) is an industrial chemical that has been widely adopted for various industrial applications, including water and wastewater treatment. Currently, the majority of H2O2 is being produced through the anthraquinone oxidation process, which is disadvantageous due to the requirement of toxic raw materials and high energy input. Recently, microbial electrochemical cells (MXCs), such as microbial fuel cells and microbial electrolysis cells, have demonstrated great potential for effective H2O2 production via cathodic oxygen-reduction reaction (ORR). Previous studies have specified key operational parameters for scaling-up of H2O2-producing MXCs, where improvements in production rate, conversion efficiency, product concentration and stability are attainable. Moreover, various systems have demonstrated their value proposition in the contaminant removal aspects through direct removal of various environmental pollutants, water disinfection, and many more. This review is intended to highlight promising ways of H2O2 production with MXCs and on-site environmental applications of bioelectrochemically-produced H2O2.
AB - Hydrogen peroxide (H2O2) is an industrial chemical that has been widely adopted for various industrial applications, including water and wastewater treatment. Currently, the majority of H2O2 is being produced through the anthraquinone oxidation process, which is disadvantageous due to the requirement of toxic raw materials and high energy input. Recently, microbial electrochemical cells (MXCs), such as microbial fuel cells and microbial electrolysis cells, have demonstrated great potential for effective H2O2 production via cathodic oxygen-reduction reaction (ORR). Previous studies have specified key operational parameters for scaling-up of H2O2-producing MXCs, where improvements in production rate, conversion efficiency, product concentration and stability are attainable. Moreover, various systems have demonstrated their value proposition in the contaminant removal aspects through direct removal of various environmental pollutants, water disinfection, and many more. This review is intended to highlight promising ways of H2O2 production with MXCs and on-site environmental applications of bioelectrochemically-produced H2O2.
KW - Hydrogen peroxide
KW - Microbial electrochemical cells (MXCs)
KW - Microbial hydrogen peroxide producing cells (MPPCs)
KW - Oxygen reduction reaction (ORR)
UR - http://www.scopus.com/inward/record.url?scp=85087521020&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85087521020&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2020.123727
DO - 10.1016/j.biortech.2020.123727
M3 - Review article
C2 - 32646578
AN - SCOPUS:85087521020
SN - 0960-8524
VL - 313
JO - Bioresource Technology
JF - Bioresource Technology
M1 - 123727
ER -