粉末活性炭联合超滤技术去除2-MIB探索实践  

Exploration and practice of powder activated carbon combined with ultrafiltration technology for removing 2-MIB

作　　者：于宏静 郭琴 高旭辉 张卉珂 许子荣 赵旺 YU Hongjing;GUO Qin;GAO Xuhui;ZHANG Huike;XU Zirong;ZHAO Wang(Shenzhen Shenshui Guangming Water Co.,Ltd.,Shenzhen 518107,China)

机构地区：[1]深圳市深水光明水务有限公司,深圳518107

出　　处：《给水排水》2024年第9期27-32,共6页Water & Wastewater Engineering

摘　　要：针对水源水中2-甲基异莰醇(2-Methylisocamphene,2-MIB)引起的嗅味问题,于深圳市光明区某给水厂开展粉末活性炭(Powdered activated carbon,PAC)吸附、混凝沉淀、超滤、砂滤联合去除水源水中2-MIB研究。结果表明,PAC吸附工艺可有效去除2-MIB,但会引起虹吸滤池处理负荷增加,导致滤池藻类及PAC发生穿透,进而引发滤后水及出厂水2-MIB返增。压力罐式超滤系统一体化装置占地面积较小,无需停水实施改造,可克服老旧水厂用地难等问题,通过与PAC吸附工艺相结合,可解决老旧水厂滤池效能不足缺陷,组合工艺可发挥单一技术优势,以应对2-MIB水质问题,并且可提升水厂整体出水水质。In response to the odor problem caused by 2-Methylisocamphene(2-MIB)in the source water,a study was conducted on the combined removal of 2-MIB from the source water by Powdered Activated Carbon(PAC)adsorption,coagulation precipitation,ultrafiltration,and sand filtration at a water supply plant in Guangming District,Shenzhen.The results indicate that the PAC adsorption process can effectively remove 2-MIB,but it will cause an increase in the treatment load of the siphon filter,leading to the penetration of algae in the filter and causing a backflow of 2-MIB in the filtered water and effluent.The integrated device of pressure tank ultrafiltration system takes up a small area and does not require water shutdown for renovation.It can overcome the problems of difficult land use in old water plants.By combining with PAC adsorption process,the insufficient efficiency of old water plant filters can be solved.The combined process can leverage the advantages of a single technology to address the 2-MIB water quality problem and improve the overall effluent quality of the water plant.

关 键 词：2-甲基异莰醇 藻类 活性炭吸附 超滤 

分 类 号：TU991[建筑科学—市政工程]