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Scaling-up of microbial electrosynthesis with multiple electrodes for in situ production of hydrogen peroxide
- Source :
- iScience, Vol 24, Iss 2, Pp 102094-(2021), Zou, R, Hasanzadeh, A, Khataee, A, Yang, X, Xu, M, Angelidaki, I & Zhang, Y 2021, ' Scaling-up of microbial electrosynthesis with multiple electrodes for in-situ production of hydrogen peroxide ', iScience, vol. 24, no. 2, 102094 . https://doi.org/10.1016/j.isci.2021.102094, iScience
- Publication Year :
- 2021
- Publisher :
- Elsevier, 2021.
-
Abstract
- Summary Microbial electrosynthesis system (MES) has recently been shown to be a promising alternative way for realizing in situ and energy-saving synthesis of hydrogen peroxide (H2O2). Although promising, the scaling-up feasibility of such a process is rarely reported. In this study, a 20-L up-scaled two-chamber MES reactor was developed and investigated for in situ and efficient H2O2 electrosynthesis. Maximum H2O2 production rate of 10.82 mg L−1 h−1 and cumulative H2O2 concentration of 454.44 mg L−1 within 42 h were obtained with an input voltage of 0.6 V, cathodic aeration velocity of 0.045 mL min−1 mL−1, 50 mM Na2SO4, and initial pH 3. The electrical energy consumption regarding direct input voltage was only 0.239 kWh kg−1 H2O2, which was further much lower compared with laboratory-scale systems. The obtained results suggested that the future industrialization of MES technology for in situ synthesis of H2O2 and further application in environmental remediation have broad prospects.<br />Graphical Abstract<br />Highlights • Up-scaled microbial electrosynthesis with multiple electrodes to synthesize H2O2 • The H2O2 yield was higher than that of laboratory-scale systems using graphite cathode • Energy consumption was lower than that of laboratory-scale (bio)electrochemical systems • Systematic evaluation of the influence of operating parameters on H2O2 production<br />Electrochemistry; biotechnology; engineering; materials science
- Subjects :
- 0301 basic medicine
In situ
Materials science
materials science
engineering
02 engineering and technology
Electrosynthesis
Electrochemistry
Article
Cathodic protection
03 medical and health sciences
chemistry.chemical_compound
SDG 7 - Affordable and Clean Energy
Hydrogen peroxide
lcsh:Science
Multidisciplinary
Microbial electrosynthesis
021001 nanoscience & nanotechnology
030104 developmental biology
chemistry
Chemical engineering
electrochemistry
Electrode
lcsh:Q
Aeration
0210 nano-technology
biotechnology
Subjects
Details
- Language :
- English
- ISSN :
- 25890042
- Volume :
- 24
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- iScience
- Accession number :
- edsair.doi.dedup.....4f53b878c5f6d99e853cad86c2c972ab