title: Operational and biological analyses of branched water-adjustment and combined treatment of wastewater from a chemical industrial park.
abstract: The combined biological processes of branched water-adjustment, chemical precipitation, hydrolysis acidification, secondary sedimentation, Anoxic/Oxic and activated carbon treatment were used for chemical industrial wastewater treatment in the Taihu Lake Basin. Full-scale treatment resulted in effluent chemical oxygen demand, total nitrogen, NH3-N and total phosphorus of 35.1, 5.20, 3.10 and 0.15 mg/L, respectively, with a total removal efficiency of 91.1%, 67.1%, 70.5% and 89.3%, respectively. In this process, short-circuited organic carbon from brewery wastewater was beneficial for denitrification and second-sulfate reduction. The concentration of effluent fluoride was 6.22 mg/L, which also met the primary standard. Gas Chromatography-Mass Spectrometry analysis revealed that many types of refractory compounds were present in the inflow. Microbial community analysis performed in the summer by PCR-denaturing gradient gel electrophoresis and MiSeq demonstrated that certain special functional bacteria, such as denitrificans, phosphorus-accumulating bacteria, sulfate- and perhafnate-reducing bacteria, aromatic compound-degrading bacteria and organic fluoride-degrading bacteria, present in the bio-tanks were responsible for the acceptable specific biological pollutant reduction achieved.
authors.affiliation: a Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education , Hohai University , Nanjing , People's Republic of China.|b College of Environment, Hohai University , Nanjing , People's Republic of China.|c Jiangsu Academy of Environmental Science , Nanjing , People's Republic of China.|d Jiangsu Province Key Laboratory of Environmental Engineering , Nanjing , Jiangsu , People's Republic of China.
authors.forename: Ming
authors.initials: M
authors.lastname: Xu
authors.affiliation: a Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education , Hohai University , Nanjing , People's Republic of China.|b College of Environment, Hohai University , Nanjing , People's Republic of China.
authors.forename: Jiashun
authors.initials: J
authors.lastname: Cao
authors.affiliation: a Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education , Hohai University , Nanjing , People's Republic of China.|b College of Environment, Hohai University , Nanjing , People's Republic of China.
authors.forename: Chao
authors.initials: C
authors.lastname: Li
authors.affiliation: c Jiangsu Academy of Environmental Science , Nanjing , People's Republic of China.|d Jiangsu Province Key Laboratory of Environmental Engineering , Nanjing , Jiangsu , People's Republic of China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Tu
authors.affiliation: c Jiangsu Academy of Environmental Science , Nanjing , People's Republic of China.|d Jiangsu Province Key Laboratory of Environmental Engineering , Nanjing , Jiangsu , People's Republic of China.
authors.forename: Haisuo
authors.initials: H
authors.lastname: Wu
authors.affiliation: c Jiangsu Academy of Environmental Science , Nanjing , People's Republic of China.|d Jiangsu Province Key Laboratory of Environmental Engineering , Nanjing , Jiangsu , People's Republic of China.
authors.forename: Weijing
authors.initials: W
authors.lastname: Liu
mesh_terms: D001419:Bacteria; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors / Q000382:microbiology; D011232:Chemical Precipitation; D058645:Denaturing Gradient Gel Electrophoresis; D058440:Denitrification; D009584:Nitrogen; D010758:Phosphorus; D012722:Sewage / Q000382:microbiology; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods*
chemical_list: D009584:Nitrogen; D010758:Phosphorus; D012722:Sewage; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Chemical industrial park; anaerobic hydrolysis acidification; fluoride; microbial community; nitrogen and phosphorus removal