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"Infiltration" in seawater desalinationdesalinationIn the field of water treatment, also known as forward osmosis, it is a pair of methods that are mutually reversed with reverse osmosis.As a potential new technology for water purification and desalination, forward osmosis is being studied theoretically and practically from multiple perspectives and at a deeper level in the world.In 1976, there was an original attempt of liquid-liquid system abroad. In 1992, the forward osmosis (non pressurized) adsorption osmosis method for desalination of liquid-solid system was invented in China (CN92110710.2).It was not until about 10 years later that he followed the international trend again and started the standard imitation and replication mode.[1]
Chinese name
forward osmosis
Foreign name
FO
Field
Seawater desalination, desalination, water treatment, concentration
Non pressurized Osmotic Adsorption (1990s) Seawater Desalination, or“Forward osmosis method”It allows water to enter a super absorbent adsorbent or a solution or solid with a salt concentration even higher than that of seawater through the forward osmosis of the porous membrane, without external pressure, but the special salt "extract" in the solution is easy to evaporate, and does not need to add too much heat (the energy ratio of heating energy to reverse osmosis pressure).It is divided into solid salt and liquid salt directions.Solid salt desorption consumes less energy.seawater desalination technology : Non pressurized adsorption infiltration desalination method (CN92110710.2) 1992: Deng Yu's invention in the 1990s
