【作者】 刘艳； 解立平； 费学宁； 姜远光； 张玉忠；

【Author】 LIU Yan~(1,2),XIE Liping~(1,2),FEI Xuening~3, JIANG Yuanguang~3,ZHANG Yuzhong~(2,4) (1.College of Environment & Chemical Engineering,Tianjin Polytechnic University, ;2.State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University,Tianjin 300160,China;3.Department of Environmental and Municipal Engineering,Tianjin Institute of Urban Construction,Tianjin 300384, China;4.College of Materials Science and Engineering,Tianjin Polytechnic University,Tianjin 300160,China)

【机构】 天津工业大学 环境与化学工程学院； 天津工业大学 中空纤维膜材料与膜过程教育部重点实验室； 天津城市建设学院环境与市政工程系； 天津工业大学 材料科学与工程学院；

【摘要】 对一体式光催化—膜分离三相流化床反应器光催化降解溴氨酸废水时的影响因素进行了研究.结果表明,微滤膜对溴氨酸具有吸附作用,但无过滤、截留能力;酸性条件以及外加H₂O₂均可有效提高一体式反应器光催化脱色率;此外,脱色率随溴氨酸浓度的增大而降低,且适宜浓度为20 mg/L.反应器长期运行过程中,脱色率可维持在91%～95%之间,而催化剂的悬浮浓度维持在0.792～0.815 g/L,在线反冲洗可有效地减缓膜污染.一体式反应器可长期、稳定地处理溴氨酸废水.更多还原

【Abstract】 The effects of degrading bromoamine acid wastewater by an integrative three-phase fluidized-bed reactor coupling with photocatalysis oxidation and membrane separation were investigated in the paper. The results showed that bromoamine acid can be adsorpted by micro-filtration membrane,but it can’t be filtered by the membrane.The acidic wastewater and H₂O₂ dosed all raised the decolorized efficiency.Besides, The decolorized efficiency of the reactor decreased with bromoamine acid concentration increasing, and the appropriate concentration is 20 mg /L.In long-running process,the decolorized efficiency remained from 91%to 95%,and the suspension concentration of TiO₂ was also kept in the range from 0.792 to 0.815 g /L.Backwash on line effectively retarde the membrane fouling.The integrative reactor can photocatalytic degrade bromoamine acid wastewater steadily for a long time.更多还原