... mineral water treatment plant with Ultra filtration membrane water filtering filter for water treatment with different membrane material (PES,PS,PVDF,PVC,PAN,PP)Hollow fiber ultrafiltration membrane ... of the membrane is 0.4-0.6mm or 1.5-1.6mm, inside diameter is 0.3-0.5mm or 0.9-1.0mm ... . The micropores distribute around the wall of the membrane. The entrapping ...