On April 1, ZGSH's new membrane production unit with an annual output of 40,000 nanofiltration/reverse osmosis membrane projects was officially put into operation. The device can produce reverse osmosis membranes and nanofiltration membranes, and the product performance has reached the international advanced level, laying a solid foundation for China to build a world-class high-performance membrane industrial base.
Nanofiltration reverse osmosis membrane
Reverse osmosis membrane is an artificial semi-permeable membrane with certain characteristics made by simulating biological semi-permeable membrane, and it is the core component of reverse osmosis technology. Reverse osmosis applies a pressure greater than natural osmotic pressure to make the direction of permeation proceed in the opposite direction, thereby pressing the water molecules in the raw water to the other side of the membrane to become clean water, which can effectively remove the dissolved salts in the water. , Colloids, microorganisms, organics, etc. Nanofiltration/reverse osmosis membrane technology is now widely used in seawater desalination, industrial wastewater treatment and reuse, domestic sewage treatment and other fields. Among them, reverse osmosis RO technology accounts for nearly 70% of China's seawater desalination projects.