Ultrafiltration (UF) is a separation principle for screening, with pressure as the driving force to realize mechanical separation membrane separation process,namely under certain pressure , when the mixed solution of large molecules or a small molecule solute through the membrane surface, solvent (e .g.,inorganic salt) and small molecule solutes through the membrane, and the solute molecules due to mechanical filtration membrane as concentrate intercept.To achieve the purpose of purification, separation and concentration.
Hollow fiber ultrafiltration membrane is an important form of separation membrane . The membrane pores are capillary and the micropores are located on the wall of the tube.The solution is based on whether its components can be purified, separated and concentrated through these micropores .Among the membrane components per unit volume,hollow fiber membrane has the largest effective area , high filtration and separation efficiency ,easy cleaning , simple structure , easy operation and low price .The production process does not produce secondary pollution, so it is widely used.
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