期刊
CURRENT POLLUTION REPORTS
卷 8, 期 1, 页码 51-80出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s40726-021-00208-1
关键词
Nanofiltration; Rejection; Exclusion theory; Fouling; Nanomaterials
This paper reviews the latest research progress of nanofiltration (NF) separation technology, focusing on NF membrane preparation methods and materials. Membrane fouling and its mechanisms are analyzed, along with key pretreatment and cleaning methods. The practical applications of NF in groundwater, pharmaceutical wastewater, and textile wastewater treatment are briefly introduced. The paper concludes with a discussion on the shortcomings and prospects of the existing research progress.
Water is the material basis for living organisms and one of the primary resources to maintain the sustainable development of the earth's ecological environment. As a water purification method, nanofiltration (NF) separation technology has been widely considered by researchers in recent years. However, most of the studies on NF in the literature focus on membrane modification, and there are only a few reviews available. In this paper, the latest research progress of NF is reviewed, and the processes of NF membrane preparation using phase inversion, layer by layer, and interfacial polymerization are described. Polymer materials used for NF membrane preparation are reviewed and the main types of nanofillers to generate thin film nanocomposite membranes, including metal organic frameworks, boron nitride, Ti3C2TX, graphene oxide, SiO2, and iron oxide are discussed. Membrane fouling is inevitable during NF operation and this paper analyzes the mechanisms of fouling and summarizes key pretreatment and cleaning methods required to remediate the long-term effects of cake layer formation. The steric hindrance effect, Donnan effect, and dielectric exclusion are analyzed, and some common characterization methods are summarized. The practical applications of NF are briefly introduced including groundwater, pharmaceutical wastewater, and textile wastewater treatment. Finally, the shortcomings and prospects of the existing research progress are put forward.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据