Journal article
Scaling-up of microbial electrosynthesis with multiple electrodes for in-situ production of hydrogen peroxide
Water Technology & Processes, Department of Environmental Engineering, Technical University of Denmark1
Department of Environmental Engineering, Technical University of Denmark2
Department of Chemical and Biochemical Engineering, Technical University of Denmark3
PROSYS - Process and Systems Engineering Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark4
University of Tabriz5
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). Though 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.
The 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 of 3. The electrical energy consumption regarding direct input voltage was only 0.239 kWh kg-1 H2O2, which was further much lower compared with lab-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.
| Language: | English |
|---|---|
| Publisher: | Elsevier |
| Year: | 2021 |
| Pages: | 102094 |
| ISSN: | 25890042 |
| Types: | Journal article |
| DOI: | 10.1016/j.isci.2021.102094 |
| ORCIDs: | Zou, Rusen , Hasanzadeh, Aliyeh , Yang, Xiaoyong , Angelidaki, Irini , Zhang, Yifeng and 0000-0001-7649-4359 |
Q Science biotechnology electrochemistry engineering materials science
