期刊
ENVIRONMENTAL TECHNOLOGY
卷 34, 期 19, 页码 2737-2742出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09593330.2013.788041
关键词
bioelectrochemical systems; hydrogen peroxide; membrane bioreactor; microbial electrolysis cell; wastewater treatment
资金
- Japan Society for Promotion of Science (JSPS) KAKENHI [21360250]
- JSPS
- Grants-in-Aid for Scientific Research [21360250] Funding Source: KAKEN
Bioelectrochemical systems can be used to energy-efficiently produce hydrogen peroxide (H2O2) from wastewater. Organic compounds in the wastewater are oxidized by microorganisms using the anode as electron acceptor. H2O2 is produced by reduction of oxygen on the cathode. In this study, we demonstrate for the first time production of high concentrations of H2O2 production from real municipal wastewater. A concentration of 2.26g/L H2O2 was produced in 9h at 8.3kWh/kgH(2)O(2). This concentration could poTENTially be useful for membrane cleaning at membrane bioreactor wastewater treatment plants. With an acetate-containing nutrient medium as anode feed, a H2O2 concentration of 9.67g/L was produced in 21h at an energy cost of 3.0kWh/kgH(2)O(2). The bioelectrochemical reactor used in this study suffered from a high internal resistance, most likely caused by calcium carbonate deposits on the cathode-facing side of the cation exchange membrane separating the anode and cathode compartments.
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