title: Azo dyes wastewater treatment and simultaneous electricity generation in a novel process of electrolysis cell combined with microbial fuel cell.
abstract: A new process of electrolysis cell (EC) coupled with microbial fuel cell (MFC) was developed here and its feasibility in methyl red (MR) wastewater treatment and simultaneous electricity generation was assessed. Results indicate that an excellent MR removal and electricity production performance was achieved, where the decolorization and COD removal efficiencies were 100% and 89.3%, respectively and a 0.56V of cell voltage output was generated. Electrolysis voltage showed a positive influence on decolorization rate (DR) but also cause a rapid decrease in current efficiency (CE). Although a low COD removal rate of 38.5% was found in EC system, biodegradability of MR solution was significantly enhanced, where the averaged DR was 85.6%. Importantly, COD removal rate in EC-MFC integrated process had a 50.8% improvement compared with the single EC system. The results obtained here would be beneficial to provide a prospective alternative for azo dyes wastewater treatment and power production.
authors.affiliation: Department of Resource and Environment, Anhui Science and Technology University, Donghua Road, Fengyang 233100, China; Key Laboratory of Bioorganic Fertilizer Creation, Ministry of Agriculture, Bengbu 234000, China. Electronic address: hmzou@126.com.
authors.forename: Haiming
authors.initials: H
authors.lastname: Zou
authors.affiliation: Department of Resource and Environment, Anhui Science and Technology University, Donghua Road, Fengyang 233100, China; Key Laboratory of Bioorganic Fertilizer Creation, Ministry of Agriculture, Bengbu 234000, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
mesh_terms: D001391:Azo Compounds; D001674:Bioelectric Energy Sources; D004560:Electricity; D004572:Electrolysis; D011446:Prospective Studies; D062065:Wastewater
chemical_list: D001391:Azo Compounds; D062065:Wastewater
keywords: Electrolysis cell; Methyl red; Microbial fuel cell; Power production; Wastewater treatment