Fe-Mn/Al_(2)O_(3)催化臭氧处理膜浓缩化工废水的研究  

Research on Fe-Mn/Al_(2)O_(3) Catalytic Ozonation to Treat Membrane Concentrated Chemical Wastewater

作　　者：熊威 李想 吴雅琴[1] 杨波[1] 李淑娜 祝海涛 XIONG Wei;LI Xiang;WU Yaqin;YANG Bo;LI Shuna;ZHU Haitao(Hangzhou Water Treatment Technology Development Center Co.,Ltd,Hangzhou 310012,China)

机构地区：[1]杭州水处理技术研究开发中心有限公司,浙江杭州310012

出　　处：《水处理技术》2021年第7期94-98,共5页Technology of Water Treatment

基　　金：杭州市重大科技创新(20182013A02);浙江省重点研发计划(2021C04002);浙江省海水淡化技术研究重点实验室

摘　　要：评估了两种自制的Fe-Mn/Al_(2)O_(3)催化剂的催化性能,考察了FMA-1/O_(3)系统处理两种化工废水膜浓水能力,并探究了水力停留时间(HRT)、臭氧浓度及H_(2)O_(2)的添加对废水处理效率的影响。结果表明:在一定条件下,FMA-1催化臭氧去除对氯苯酚的性能为51.7%,比Al_(2)O_(3)/O_(3)系统提高了16.2%,优于FMA-2/O_(3)系统。在一定条件下,较O_(3)系统,FMA-1/O_(3)系统处理聚氯乙烯生产废水纳滤浓水的COD去除效率提升9.2%,并发现HRT增加到22 min时,出水COD去除增加,再提高到33 min,COD去除的增加逐渐达到极限。对于FMA-1/O3系统处理聚氯乙烯生产废水纳滤浓水和氧化锌生产废水反渗透浓水,增加臭氧浓度能不同程度提升COD的去除,协同0.065%H_(2)O_(2)催化,则大幅度提升COD的去除效果,在O_(3)浓度为10.7 mg/L且加入H_(2)O_(2)时,两种废水的COD去除率分别提升了19.2%和18.9%。This study evaluated the catalytic performance of two self-made Fe-Mn/Al_(2)O_(3) catalysts, investigated the ability of the FMA-1/O_(3) system to treat the membrane concentrated water of two kinds of chemical wastewater, and explored the effects of the hydraulic retention time(HRT), ozone concentration, and the addition of H_(2)O_(2) on wastewater treatment efficiency. The results showed that, the performance of FMA-1 catalytic ozone to remove p-chlorophenol was 51.7%, which was 16.2% higher than that of the Al_(2)O_(3)/O_(3) system and was better than the FMA-2/O_(3) system. Under certain conditions, compared to the O_(3) system, the COD removal efficiency of the FMA-1/O_(3) system for the treatment of concentrated wastewater of polyvinyl chloride production wastewater was increased by 9.2%. The COD removal rate of the effluent was increased when the HRT was added to 22 min, and increasing to 33 min, the increase of effluent COD removal rate gradually reached the limit. The FMA-1/O_(3) system for the treatment of polyvinyl chloride production wastewater nanofiltration concentrated water and ZnO production wastewater reverse osmosis concentrated water, the increase in ozone concentration promoted the removal of COD to varying degrees. The addition of 0.065% H2O2 had a good effect on the COD removal. When the O_(3) concentration was 10.7 mg/L and H_(2)O_(2) was added, the COD removal efficiencies of two kinds of wastewater increased by19.2% and 18.9%, respectively.

关 键 词：Fe-Mn/Al_(2)O_(3) 催化臭氧氧化 膜浓缩化工废水 H2O2强化 

分 类 号：O643.36[理学—物理化学] TQ028.8[理学—化学]