Adsorption-filtration characteristics of melt-blown polypropylene fiber in purification of reclaimed water

• Published in: Desalination Vol. 201; no. 1; pp. 198 - 206
• Main Authors: Liu, Li, Xu, Zhonghou, Song, Cunyi, Gu, Qingbao, Sang, Yimin, Lu, Guilan, Hu, Hualong, Li, Fasheng
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 30.11.2006; Elsevier
• Subjects: Adsorption; Adsorption mechanism; Adsorption-filtration; Applied sciences; Chemical engineering; Exact sciences and technology; Filtration; Liquid-liquid and fluid-solid mechanical separations; Melt-blown polypropylene fiber; Pollution; Polyaluminum chloride; Purification of reclaimed water; Purification of reclaimed water; Melt-blown polypropylene fiber; Polyaluminum chloride; Adsorption-filtration; Adsorption mechanism; Filtration; Purification; Adsorption; Turbidity; Microparticle
• ISSN: 0011-9164; 1873-4464
• DOI: 10.1016/j.desal.2006.02.014

Melt-blown polypropylene fiber (MBPF) is a recently developed new material for filtration. This study evaluates the efficiency of using MBPF filter to treat reclaimed water with respect to analysis of the COD Cr, SS, NH 3-N and turbidity for the water samples before and after adsorption and filtration with MBPF filter. Experimental results indicate that MBPF can significantly reduce COD Cr, SS and NH 3–N values of the reclaimed water. Furthermore, the adsorption and filtration efficiency can be greatly improved if the water sample has been pretreated with polyaluminum chloride (PAC) due to that microparticles and organic compounds will be flocculated or coprecipitated by the polyaluminum ions, therefore, become easily blocked and captured by the 3-dimensional network of the filter or absorbed on the large surface of the fiber.