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

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 CODCr, SS, NH3-N and turbidity for the water samples before and after adsorption and filtration with MBPF filter. Experimental results indicate that MBPF can significantly reduce CODCr, SS and NH3–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.