A novel bioelectro-Fenton system for coupling anodic COD removal with cathodic dye degradation

作者：Zhuang, Li; Zhou, Shungui^*; Yuan, Yong; Liu, Min; Wang, Youdong

来源：Chemical Engineering Journal, 2010, 163(1-2): 160-163.

DOI：10.1016/j.cej.2010.07.039

• Bioelectro-Fenton process
• Microbial fuel cell
• Hydrogen peroxide
• Rhodamine B
• COD removal

The typical electro-Fenton process requires electricity to produce H2O2 electrochemically on the cathode for generating powerful oxidants (e.g., hydroxyl radical) to degrade persistent organic pollutants. A new bioelectro-Fenton system in a two-chamber microbial fuel cell (MFC) was proposed using a Fe@Fe2O3/carbon felt composite cathode for simultaneous oxidation of wastewater at the anode and cathodic degradation of biorefractory pollutant by Fenton's reaction. Under the short-circuit conditions, it was found that the rate of Rhodamine B (RhB) decolorization, TOC removal and stoichiometric efficiency was significantly improved as compared with that found under close-circuit conditions (1000 Omega). The enhancement was determined to be caused by an increase in cathodic current density that was favorable for H2O2 production.

• 出版日期2010-9-15
• 单位广东省生态环境技术研究所