功能陶瓷膜催化臭氧氧化处理页岩气压裂废水  

Treatment of Shale Gas Fracturing Wastewater by Functional Ceramic Membrane Combined with Ozonation

作　　者：杨德敏 张烨 袁建梅 廖新睿 陈颖馨 王益平[6] YANG Demin;ZHANG Ye;YUAN Jianmei;LIAO Xinrui;CHEN Yingxin;WANg Yiping(National and Local Joint Engineering Research Center of Shale Gas Exploration and Development(Chongqing Institute of Geology and Mineral Resources),Chongqing 401120,China;Key Laboratory of Shale Gas Exploration,Ministry of Natural Resources(Chongqing Institute of Geology and Mineral Resources),Chongqing 401120,China;Chongqing Huadi Resources and Environmental Technology Co.,Ltd,Chongqing 401120,China;College of Environmental Science and Engineering,Ocean University of China,Qingdao 266100,China;Chongqing Gas Field,PetroChina Southwest Oil&Gasfield Company,Chongqing 401147,China;China Railway Eryuan Engineering Group Co.,Ltd,Chengdu 610031,China)

机构地区：[1]页岩气勘探开发国家地方联合工程研究中心(重庆地质矿产研究院),重庆401120 [2]自然资源部页岩气资源勘查重点实验室(重庆地质矿产研究院),重庆401120 [3]重庆华地资环科技有限公司,重庆401120 [4]中国海洋大学环境科学与工程学院,山东青岛266100 [5]中国石油天然气股份有限公司西南油气田分公司重庆气矿,重庆401147 [6]中铁二院工程集团有限责任公司,四川成都610031

出　　处：《水处理技术》2023年第10期122-125,140,共5页Technology of Water Treatment

基　　金：重庆市自然科学基金面上项目(cstc2020jcyj-msxmX0128);重庆市技术创新与应用发展重点研发项目(CSTB2022TIADKPX0196);重庆市科研机构绩效激励引导专项项目(cstc2022jxjl20012)。

摘　　要：采用功能陶瓷膜催化臭氧氧化处理页岩气压裂废水,考察了不同功能陶瓷膜、初始pH、臭氧投加量、反应时间等因素对压裂废水处理效果和膜污染控制效果的影响。结果表明:氧化锰陶瓷膜、氧化钛陶瓷膜和氧化铝陶瓷膜具有良好的臭氧催化功能,与臭氧组合促进了氧化反应系统中羟基自由基(·OH)的产生,明显增强了废水处理效果,相比单独臭氧氧化COD去除率最高提升了21.65%。在初始pH为7.5、臭氧投加量为80 mg/L、反应时间为60 min时,氧化锰陶瓷膜与臭氧组合处理压裂废水COD去除率为79.17%;臭氧可有效控制氧化锰陶瓷膜污染,随着臭氧浓度的增加,ΔTMP明显下降,当臭氧投加量为80 mg/L时,ΔTMP达到最大下降比率72.78%。A combined process of functional ceramic membrane with ozonation was applied for the treatment of shale gas fracturing wastewater,and the influences of the different functional ceramic membrane,initial pH value,ozone dosage,reaction time on the effect of fracturing wastewater treatment and membrane fouling control were investigated.The results showed that the manganese dioxide ceramic membrane,titanium dioxide ceramic membrane,alumina ceramic film have a good ozone catalytic function,its enhanced the production of hydroxyl radical(·OH)combined with ozonation process,and significantly enhanced the wastewater treatment effect.The highest removal rate of COD has increased by 21.65%compared with ozonation alone.When the initial pH value was 7.5,ozone dosage was 80 mg/L,reaction time was 60 min,the removal rate of COD in the combined process of manganese dioxide ceramic membrane with ozonation reaching 79.17%.The fouling of manganese dioxide ceramic membrane could effectively control by ozone.The maximum falling rate of trans-membrane pressure(TMP)was reached 72.78%when the ozone dosage was 80 mg/L.

关 键 词：页岩气压裂废水 功能陶瓷膜 臭氧氧化 羟基自由基 膜污染 

分 类 号：TQ028.8[化学工程]