Membrane treatment technology compared with conventional treatment. Outstanding water has a good stability. Small footprint. High degree of automation. Low maintenance costs. Coupled with the recent decline in membrane costs and the emergence of strong anti-pollution membrane. The field of micro-polluted water is increasingly widely used UF membrane can remove bacteria, viruses, two insects (Cryptosporidium and Giardia), algae and aquatic organisms, and reduce the subsequent disinfection of chlorine