混凝-臭氧-超滤工艺处理活性炭滤池反冲洗废水  

The Combination of Coagulation and Ozonation as A Pre-treatment of Ultrafiltration in Recycling of Activated Carbon Filter Backwash Water

作　　者：于晓斐 周冰洁 林涛[1,2] YU Xiao-fei;ZHOU Bing-jie;LIN Tao(College of Environment,Hohai University,Nanjing 210098,China;Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education,College of Environment,Hohai University,Nanjing 210098,China;Nanjing Water&Wastewater Engineering Design Institute Co.,Ltd.,Nanjing 210036,China)

机构地区：[1]河海大学环境学院,江苏南京210098 [2]河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098 [3]南京市给排水工程设计院有限公司,江苏南京210036

出　　处：《环境科技》2020年第1期31-35,共5页Environmental Science and Technology

基　　金：国家科学自然基金：“超滤净水膜污染形成过程中微界面上的作用机制与控制研究”（51778208）

摘　　要：针对活性炭滤池反冲洗废水中颗粒物、有机物及微生物的复杂水质特性,研究了混凝-臭氧-超滤工艺的净化效能,以期为水厂反冲洗废水的处理提供技术支撑。试验结果表明,添加混凝-臭氧氧化预处理后,超滤膜出水水质良好,浊度为0.10 NTU,UV254和ρ(DOC)分别为0.026和1.35 mg/L,微生物指标、消毒副产物和嗅味物质等其他各项指标均达到GB 5749-2006《生活饮用水卫生标准》,同时,超滤过程中膜污染程度较低。因此,混凝-臭氧-超滤工艺对活性炭滤池反冲洗废水有良好的净化效能,并可以保持长期稳定运行。For the complex water quality characteristics of particles, organic matter and microorganisms in activated carbon filter backwash water, the purification efficiency of the combination of coagulation and ozonation as a pre-treatment during ultrafiltration was studied in order to provide technical support for the recycling of backwash water. It was shown by the test results, the quality of ultrafiltration membrane product water was good when the combination of coagulation and ozonation was as a pre-treatment. The turbidity was 0.10 NTU, UV254 was 0.026 and DOC was 1.35 mg/L.The microbial indexes, the disinfection by products, the odor compounds and other various indexes met the national standards for drinking water quality(GB 5749-2006). At the same time, the degree of membrane fouling was low during ultrafiltration. Therefore, ultrafiltration with the combination of coagulation and ozonation as a pre-treatment had a good purification efficiency for backwash water and can run stably for a long time.

关 键 词：超滤工艺 活性炭滤池反冲洗废水 预处理 平板陶瓷膜 废水处理 

分 类 号：X5[环境科学与工程—环境工程]