超滤作为臭氧/生物活性炭前处理工艺的适用性研究  

Applicability of Ultrafiltration as the Pretreatment for Ozonation and Biological Activated Carbon Filtration Process

作　　者：董秉直[1] 何欢[1] 李甜[1] 陈艳[2] 赵青青 DONG Bing-zhi;HE Huan;LI Tian;CHEN Yan;ZHAO Qing-qing(College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;School of Civil Engineering and Architecture,Zhejiang University of Science and Technology,Hangzhou 310023,China)

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]兰州交通大学环境与市政工程学院,甘肃兰州730070 [3]浙江科技大学土木与建筑工程学院,浙江杭州310023

出　　处：《中国给水排水》2025年第7期33-38,共6页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07201-001)。

摘　　要：用超滤替代常规工艺作为臭氧/生物活性炭的前处理工艺,组成超滤-臭氧/生物活性炭工艺,并与常规-臭氧/生物活性炭进行比较,考察两种工艺对污染物的去除效果及消毒副产物生成情况。结果表明,超滤可有效截留浊度和藻类,虽然对TOC和UV254的去除效果劣于常规工艺,但后续臭氧/生物活性炭的去除效果远优于采用常规工艺作为前处理的去除效果。此外,超滤替代常规工艺作为前处理可有效提升臭氧/生物活性炭去除三卤甲烷和卤乙酸前体物的效果;由于超滤有效去除了可生物同化有机碳(AOC)和生物可降解溶解性有机碳(BDOC)的前体物,后续臭氧/生物活性炭的去除效果提升。三维荧光平行因子分析表明,超滤前处理可有效提高活性炭去除有机物的效果。This study applied ultrafiltration(UF)as pretreatment of ozonation and biological activated carbon(O3/BAC)processes,forming a treatment train of“UF-O3/BAC”,to replace the treatment train of“conventional processes(e.g.coagulation-sedimentation-sand filtration)-O3/BAC”.The effectiveness of both trains in removing pollutants and disinfection by-product precursors were compared.The results showed that UF effectively removed turbidity and algae;and although UF reduced organic matters characterized by TOC and UV254 less effectively than the conventional processes,the O3/BAC following UF performed much better than that after the conventional processes.Compared to the“conventional processes-O3/BAC”train,the“UF-O3/BAC”train exhibited higher efficiency in removing precursors of trihalomethanes(THMs)and haloacetic acids(HAAs);as UF effectively removed precursors of assimilable organic carbon(AOC)and biodegradable dissolved organic carbon(BDOC),the performance of the following O3/BAC process on removing AOC and BDOC was enhanced.Three-dimensional fluorescence spectroscopy in couple with parallel factor analysis showed that UF pretreatment significantly improved the capacity of the BAC in removing organic matters.

关 键 词：前处理 超滤 臭氧/生物活性炭 消毒副产物 AOC 

分 类 号：TU991[建筑科学—市政工程]