摘要
水中存在的天然有机物(NOM)在饮用水处理过程中不仅会增加消毒副产物(DBPs)的数量,影响后续工艺处理,还会和水中的其他物质结合生成毒性更强的物质(有机金属络合物),严重危害人类身体健康。因此,研究NOM的去除对水质安全意义重大。文中介绍了NOM的种类及其危害,根据国内外去除NOM技术的研究现状,综述了混凝、吸附、高级氧化、膜处理和离子交换等技术去除NOM的效果及机理,重点阐述了以混凝为核心单元的耦合工艺对NOM去除的研究进展,分析了各种耦合工艺的优势与局限性,并对今后混凝技术的研究方向进行了展望。
In the process of drinking water treatment,natural organic matter(NOM)in water will not only increase the number of disinfection by-products(DBPs)and affect subsequent process treatment,but also combine with other substances in water to form more toxic substances(organometallic complexes),which seriously endanger human health.Therefore,the study on the removal of NOM is of great significance to water quality safety.This paper introduces the kinds of NOM and its harmful to consumers.And it summarizes the effect and mechanism of NOM removal by coagulation,adsorption,advanced oxidation,membrane treatment and ion exchange according to the research status of NOM removal technology at home and abroad.And it focuses on the research progress of NOM removal by coupling process with coagulation as the core unit,the advantages and limitations of various coupling processes are analyzed,the research direction of coagulation technology in the future is prospected.
作者
白毛毛
王洪波
陈飞勇
王一凡
李文轩
BAI Maomao;WANG Hongbo;CHEN Feiyong;WANG Yifan;LI Wenxuan(School of Municipal and Environmental Engineering,Shandong Jianzhu University,Jinan 250101,China;Resources and Environment Innovation Institute,Shandong Jianzhu University,Jinan 250101,China)
出处
《净水技术》
CAS
2023年第2期5-13,38,共10页
Water Purification Technology
基金
国家水体污染控制与治理科技重大专项(2017ZX07501-003)。
关键词
天然有机物
消毒副产物
混凝
高级氧化工艺
离子交换
natural organic matter(NOM)
disinfection by-products(DBPs)
coagulation
advanced oxidation processes(AOPs)
ion exchange
