title: [Pilot study on the biochemical treatment of mother liquid of polyvinyl chloride produced by suspension polymerization].
abstract: In the pilot study on the treatment of mother liquid of polyvinyl chloride produced by suspension polymerization (SPVC) by using a novel aerobic treatment system-4 cascade aerobic biofilm reactors with internal circulation, the removal efficiencies of the COD and turbidity at different HRT together with the resistance impact of the system were researched. The laws of the biological growth and the development were observed. Some primary factors (suspended solids, chironomidae larvae, nutrition) influencing the steady operation of the reactor were studied and their controlling methods were suggested. The experiment results show that the start-up period was very short and the total COD removal rate was over 75% at HRT of 14 h, the effluent less than 50 mg/L can steadily meet the requirement of wastewater discharge standard and also be reused after advanced treatment.
authors.affiliation: College of Environment Science & Engineering, Nankai University, Tianjin 300071, China.
authors.forename: Chang-bo
authors.initials: CB
authors.lastname: Zhou
authors.forename: Yun
authors.initials: Y
authors.lastname: Zhou
authors.forename: Zhen-jia
authors.initials: ZJ
authors.lastname: Zhang
mesh_terms: D000818:Animals; D001420:Bacteria, Aerobic / Q000378:metabolism; D018441:Biofilms; D019149:Bioreactors; D002683:Chironomidae / Q000378:metabolism*; D007220:Industrial Waste / Q000032:analysis; D010865:Pilot Projects; D011108:Polymers; D011143:Polyvinyl Chloride / Q000032:analysis*; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods*
chemical_list: D007220:Industrial Waste; D011108:Polymers; D011143:Polyvinyl Chloride