Introduction
Ultra filtration is a membrane separation process, using screen as separation principle and pressure as driving force. Membrane ultra filtration is a dynamic process during which the membrane is hard to be influenced and will not have status change under normal temperature and pressure. The Scope of filtrating is 0.005 to 0.01 micron. This technology can effectively remove the particles, colloid, bacteria and organic polymer, etc in water. It is widely used in electronic, pharmaceutical, food, textile, chemical, and environmental protection etc. fields.
Ultra filtration equipment is composed of a series of membrane element on the basis of the processing performance. According to the different filtrating methods, it has internal pressure type and external pressure type.