title: Enhanced treatment performance of coking wastewater and reduced membrane fouling using a novel EMBR.
abstract: A novel EMBR (electric field applied in MBR) by placing stainless steel mesh cathode inside a flat membrane module and stainless steel mesh anode outside the module was built and operated to enhance the treatment performance of coking wastewater containing phenol, pyridine and quinoline and reduce the membrane fouling. The degradation rates of COD, phenol, pyridine and quinoline in EMBR with electric field (reactor A) were significantly higher than the sum of EMBR without electric field (reactor B) and only electro-catalytic degradation during the long-term treatment, confirming that a coupling effect was existed between biodegradation and electro-catalytic degradation process. Illumina sequencing data revealed that bacterial community was richer and more diverse in reactor A. Comamonas strain JB as the inoculums was the most dominant genus in each reactor and electric field applied in reactor A further improved the abundance of strain JB. The membrane fouling in reactor A was reduced.
authors.affiliation: School of Life Science, Liaoning Normal University, Dalian 116081, China; Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian 116023, China.
authors.forename: Bei
authors.initials: B
authors.lastname: Jiang
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
authors.forename: Cong
authors.initials: C
authors.lastname: Du
authors.affiliation: School of Life Science, Liaoning Normal University, Dalian 116081, China. Electronic address: shishengnan013@163.com.
authors.forename: Shengnan
authors.initials: S
authors.lastname: Shi
authors.affiliation: School of Life Science, Liaoning Normal University, Dalian 116081, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Tan
authors.affiliation: School of Life Science, Liaoning Normal University, Dalian 116081, China.
authors.forename: Meidi
authors.initials: M
authors.lastname: Li
authors.affiliation: School of Life Science, Liaoning Normal University, Dalian 116081, China.
authors.forename: Jiaxin
authors.initials: J
authors.lastname: Liu
authors.affiliation: School of Life Science, Liaoning Normal University, Dalian 116081, China.
authors.forename: Lanlan
authors.initials: L
authors.lastname: Xue
authors.affiliation: School of Life Science, Liaoning Normal University, Dalian 116081, China.
authors.forename: Xiangyu
authors.initials: X
authors.lastname: Ji
mesh_terms: D001673:Biodegradation, Environmental; D044822:Biodiversity; D057219:Biofouling / Q000517:prevention & control*; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors / Q000382:microbiology*; D003077:Coke; D004560:Electricity; D008567:Membranes, Artificial; D064307:Microbiota; D010802:Phylogeny; D018675:Toxicity Tests; D062065:Wastewater / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D003077:Coke; D008567:Membranes, Artificial; D062065:Wastewater
keywords: Coking wastewater; EMBR; Illumina sequencing; Membrane fouling