title: Microbial community composition and function in a pilot-scale anaerobic-anoxic-aerobic combined process for the treatment of traditional Chinese medicine wastewater.
abstract: Biodegradation of traditional Chinese medicine (TCM) wastewater was investigated in a pilot-scale anaerobic-anoxic-aerobic combined process, which was composed of an expanded granular sludge blanket (EGSB) reactor, a hydrolysis acidification (HA) reactor and a biological contact oxidation (BCO) reactor. In stable stage, the average values of COD and color in the combined process effluent were 45.7mgL-1and 13 times, respectively. Excellent linear relations (R2>0.915) were achieved between color and UV254at three color levels. Comprehensive community structures of the combined process were analysed by Illumina MiSeq Sequencing, which revealed that microbial community in the aerobic reactor had the greatest diversity and richness. Bacteroidetes, Firmicutes and Proteobacteria were dominant phyla in the three reactors, and Bacteroidales, Geobacter, ZB2 were the predominant functional microorganisms in the anaerobic, anoxic and aerobic reactors, respectively. Good removal efficiencies and presence of core microorganisms confirmed that the combined process was feasible for treating TCM wastewater.
authors.affiliation: School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Longyi
authors.initials: L
authors.lastname: Lv
authors.affiliation: School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin 150090, PR China. Electronic address: lwghit@yahoo.com.
authors.forename: Weiguang
authors.initials: W
authors.lastname: Li
authors.affiliation: School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Chuandong
authors.initials: C
authors.lastname: Wu
authors.affiliation: School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Liqiang
authors.initials: L
authors.lastname: Meng
authors.affiliation: School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
authors.forename: Wen
authors.initials: W
authors.lastname: Qin
mesh_terms: D000693:Anaerobiosis; D019149:Bioreactors; D008516:Medicine, Chinese Traditional; D012722:Sewage; D014865:Waste Disposal, Fluid; D062065:Wastewater
chemical_list: D012722:Sewage; D062065:Wastewater
keywords: Anaerobic-anoxic-aerobic combined process; Illumina MiSeq Sequencing; Microbial community; Traditional Chinese medicine wastewater; UV(254)