title: A horizontal plug-flow baffled bioelectrocatalyzed reactor for the reductive decolorization of Alizarin Yellow R.
abstract: An application-oriented membrane-free, continuous plug-flow baffled bioelectrocatalyzed reactor (PFB-BER), was designed and testified for the decolorization of Alizarin Yellow R. Decolorization efficiency (DE) with an external power source of 0.5 V was higher than without electrolysis, i.e. 93.4% versus 73.6% (HRT of 24 h). Product formation efficiencies of p-phenylenediamine and 5-aminosalicylic acid were above 95% and 50%, respectively. When HRT decreased to 8 h and 4 h, DE reduced to 69.9% and 44.9%, respectively. An additional electrode assembly improved DE to 96.4% (HRT of 8 h) and 80% (HRT of 4 h), while energy consumption (HRT of 4 h) was lower than that of HRT of 12 h with single electrode assembly under comparable DE. The PFB-BER with higher removal capacity, lower internal resistance and energy consumption provides a new solution to treat the high loading azo dye-containing wastewaters.
authors.affiliation: State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Sun
authors.affiliation: State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Zhiling
authors.initials: Z
authors.lastname: Li
authors.affiliation: State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Youzhao
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China.
authors.forename: Dan
authors.initials: D
authors.lastname: Cui
authors.affiliation: Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China.
authors.forename: Bin
authors.initials: B
authors.lastname: Liang
authors.affiliation: State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Sangeetha
authors.initials: S
authors.lastname: Thangavel
authors.affiliation: Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784, South Korea; Division of Environmental Catalysis, Research Institute of Industrial Science and Technology, P.O. Box 135, Pohang 790-600, South Korea.
authors.forename: Jong Shik
authors.initials: JS
authors.lastname: Chung
authors.affiliation: State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, PR China; Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China. Electronic address: waj0578@hit.edu.cn.
authors.forename: Aijie
authors.initials: A
authors.lastname: Wang
mesh_terms: D001391:Azo Compounds / Q000378:metabolism*; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology*; D003116:Color; D055664:Electrochemical Techniques; D004566:Electrodes; D004572:Electrolysis / Q000295:instrumentation*; D010084:Oxidation-Reduction; D013997:Time Factors
chemical_list: D001391:Azo Compounds; C549930:alizarin yellow R
keywords: Alizarin Yellow R (AYR); Decolorization efficiency (DE); Electrode assembly number; Plug-flow baffled bioelectrocatalyzed reactor (PFB-BER)