title: Cooperative role of electrical stimulation on microbial metabolism and selection of thermophilic communities for p-fluoronitrobenzene treatment.
abstract: A novel thermophilic bioelectrochemical system (TBES) based on electrical stimulation was established for the enhanced treatment of p-fluoronitrobenzene (p-FNB) wastewater. p-FNB removal rate constant in the TBES was 78.6% higher than that of the mesophilic BES (MBES), the elevation of which owing to high-temperature overtook the rate improvement of 50.8% in the electrocatalytic system (ECS). Additionally, an overwhelming mineralization efficiency of 91.96% ± 5.70% was obtained in the TBES. The superiority of TBES was attributed to the integrated role of electrical stimulation and high-temperature. Electrical stimulation provided an alternative for the microbial growth independent energy requirements, compensating insufficient energy support from p-FNB metabolism under the high-temperature stress. Besides, electrical stimulation facilitated microbial community evolution to form specific thermophilic biocatalysis. The uniquely selected thermophilic microorganisms including Coprothermobacter sp. and other ones cooperated to enhance p-FNB mineralization.
authors: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
authors: Xueqin
authors: X
authors: Zhang
authors: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China.
authors: Dongsheng
authors: D
authors: Shen
authors: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China.
authors: Huajun
authors: H
authors: Feng
authors: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
authors: Yanfeng
authors: Y
authors: Wang
authors: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China.
authors: Na
authors: N
authors: Li
authors: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
authors: Jingyi
authors: J
authors: Han
authors: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China. Electronic address: longyy@zjgsu.edu.cn.
authors: Yuyang
authors: Y
authors: Long
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism; D001419:Bacteria / Q000201:enzymology / Q000378:metabolism*; D055162:Biocatalysis; D001673:Biodegradation, Environmental; D004558:Electric Stimulation; D055664:Electrochemical Techniques; D005459:Fluorides / Q000032:analysis; D054879:Halogenation; D008903:Minerals / Q000737:chemistry; D009578:Nitrobenzenes / Q000302:isolation & purification / Q000378:metabolism*; D010088:Oxidoreductases / Q000378:metabolism; D013696:Temperature
chemical_list: D008903:Minerals; D009578:Nitrobenzenes; C046306:1-fluoro-2-nitrobenzene; D010088:Oxidoreductases; D000251:Adenosine Triphosphatases; D005459:Fluorides
keywords: Electrical stimulation; High-temperature; Thermophilic BES; Thermophilic biocatalysis