氧化/陶瓷膜过滤组合工艺处理石化废水研究  

Research on Application of Oxidation and Ceramic Membrane Filtration Combined Process for Petrochemical Wastewater Treatment

作　　者：黄文靓 付宛宜 张锡辉 HUANG Wen-jing;FU Wan-yi;ZHANG Xi-hui(Tsinghua Shenzhen International Graduate School,Tsinghua University,Shenzhen 518055,China)

机构地区：[1]清华大学深圳国际研究生院,广东深圳518055

出　　处：《中国给水排水》2022年第8期65-72,共8页China Water & Wastewater

摘　　要：以天津某油田开采废水为原水,采用氧化/陶瓷膜过滤组合工艺对混凝预处理后的上清液进行处理,对比了H;O_(3)、NaClO和O_(3)三种氧化剂分别与陶瓷膜组合的处理效果。结果表明,O_(3)氧化效果最好,在O_(3)投加量为80 mg/L条件下,O_(3)/陶瓷膜组合工艺对浊度、石油类物质、COD、DOC、UV_(254)及荧光类有机物的去除率分别达到99.69%、86.52%、71.03%、46.02%、58.79%和94.14%,并且O_(3)与陶瓷膜之间存在协同作用。陶瓷膜纳米膜孔催化臭氧氧化,可提高有机污染物的降解效率,同时O_(3)能够有效缓解陶瓷膜污染。将臭氧/陶瓷膜组合工艺应用于石化废水处理领域,具有较高的技术可行性和应用价值。A combined process of oxidation and ceramic membrane filtration was applied for the treatment of supernatant from coagulation pretreatment of an oil field produced water in Tianjin,and the treatment performances of H;O_(3),NaClO and O_(3)combined with ceramic membrane were compared.O_(3)had the best oxidation performance.When the dosage of O_(3)was 80 mg/L,the turbidity,petroleum substances,COD,DOC,UV_(254)and fluorescent organic substances removal efficiencies of the combined process reached 99.69%,86.52%,71.03%,46.02%,58.79%and 94.14%,respectively.In addition,there was a synergistic effect between O_(3)and ceramic membrane.Ozone oxidation catalyzed by nano-ceramic membrane improved the degradation efficiency of organic pollutants,and O_(3)effectively alleviated the fouling of ceramic membrane.The application of O_(3)and ceramic membrane combined process in petrochemical wastewater treatment has high technical feasibility and application value.

关 键 词：石化废水 氧化 陶瓷膜过滤 臭氧 

分 类 号：TU992[建筑科学—市政工程]