Second, the membrane method of water treatment material classification
According to the different materials, the film can be divided into inorganic film and organic film. Inorganic film is mainly ceramic film, glass film, metal film, the filter accuracy is low, selectivity is small. (PVDF), polyvinyl chloride (PVC), polyethersulfone (PES), polysulfone (PS), cellulose acetate (CA) and so on, due to the organic film Filtration accuracy is high, selectivity, widely used in the field of water resources and industrial special separation and other fields.
At present, large-scale water treatment program using more of the vinylidene fluoride (PVDF), polyether sulfone (PES) material made of microfiltration / ultrafiltration membrane components. Reverse osmosis membrane manufacturing materials are mostly cellulose acetate (CA) and so on.
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