The History of Reverse Osmosis Membrane Development

In 1748, Nollet discovered osmosis.

In 1920, a complete theory of dilute solutions was established.

In 1953, the excellent semi-permeability of cellulose acetate was discovered.

In 1960, the first cellulose acetate reverse osmosis membrane was successfully fabricated.

In 1970, DuPont invented the aromatic polyamide hollow fiber reverse osmosis device.

In 1980, fully aromatic polyamide composite membranes and their spiral wound elements were introduced.

In 1990, medium-pressure, low-pressure, and ultra-low-pressure high-desalination polyamide composite membranes entered the market, opening up broad prospects for the development of reverse osmosis technology.

In 1998, low-fouling membranes were successfully developed, further expanding the application range of reverse osmosis.