10.6084/m9.figshare.4763341 Ming Xu Ming Xu Jiashun Cao Jiashun Cao Chao Li Chao Li Yong Tu Yong Tu Haisuo Wu Haisuo Wu Weijing Liu Weijing Liu Operational and biological analyses of branched water-adjustment and combined treatment of wastewater from a chemical industrial park Taylor & Francis Group 2017 Chemical industrial park fluoride anaerobic hydrolysis acidification nitrogen and phosphorus removal microbial community 2017-03-17 09:42:50 Journal contribution https://tandf.figshare.com/articles/journal_contribution/Operational_and_biological_analyses_of_branched_water-adjustment_and_combined_treatment_of_wastewater_from_a_chemical_industrial_park/4763341 <p>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, NH<sub>3</sub>–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.</p>