摘要
地下水和地表水是饮用水的主要水源,这些水源水中大多含有天然有机物。超滤可以去除水中大部分天然有机物,但在膜过滤过程中,天然有机物与水中的矿物质沉积在膜上形成滤饼层,造成膜污染的同时,严重影响超滤工艺的性能。通过预处理、原位物理或化学清洗等方法,可以缓解天然有机物造成的膜污染。详细分析了天然有机物造成的膜污染机制,探讨了新型技术在超滤膜处理天然有机物的应用,并指出未来的研究方向。
Groundwater and surface water are the main sources of drinking water,most of which contain natural organic matter(NOM).Ultrafiltration(UF)can remove most of the NOM from water,but during membrane filtration,NOM and minerals in the water deposit on the membrane to form a filter cake layer,causing membrane fouling and seriously affecting the performance of UF process.Membrane fouling caused by natural organic matter can be alleviated through pretreatment,in-situ physical or chemical cleaning,and other methods.Detailed analysis was conducted on the mechanism of NOM membrane fouling,and the application of new technologies in the treatment of NOM by ultrafiltration membranes was explored.Future research directions were also pointed out.
作者
陈彦蓉
CHEN Yanrong(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang 110168,China)
出处
《供水技术》
2025年第4期1-5,共5页
Water Technology
关键词
天然有机物
膜污染
超滤
饮用水处理
预处理
natural organic matter
membrane contamination
UF
drinking water treatment
pretreatment
