This hollow fibre ultrafilter adopts dissymmetrical semipermeable film which is made from macromolecule material with special process.
The raw liquid flows under pressure, inside or lut side the film. The macromolecule substance and colloid particles in the raw liquid are clogged at the film surface and are brought away by circulating raw liquid. Then the raw liquid becomes inspissated, furthermore, the subtance in liquid is seperated,concentrated.
