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Separating film, separating film element, separating film module, sewage and waste water treatment device, and separating film manufacturing method
Separating film, separating film element, separating film module, sewage and waste water treatment device, and separating film manufacturing method
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机译:分离膜,分离膜元件,分离膜组件,污水和废水处理装置以及分离膜的制造方法
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摘要
A separation membrane has a porous substrate and a porous resin layer on at least one surface of the porous substrate and the porous resin layer contains a resin. Part of the resin permeates through the porous substrate to form a composite layer. At least one of the following relationships (1) and (2) is satisfied: (1) the porous resin layer has an average pore size in the range of 0.01 to 0.2 mu m and a standard variation of the pore size of 0.1 mu m or less at the surface, and (2) the porous resin layer has macrovoids having short diameters of 0.05xA or more wherein A represents the thickness of the porous substrate, and the rejection of micro particles having an average particle size of 0.9 mu m is at least 90%. This separation membrane can be readily produced by a method for making a separation membrane according to the present invention. IMAGE
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