An expert in PVC tarpaulin / PVC film industry since 2002

What is the PVC film science film method?

by:LINYANG     2020-09-02
The PVC film science membrane method is a method of seawater desalination, which uses the principle of osmotic pressure. That is, when fresh water and sea water (salt water) are separated by a permeable membrane, under normal circumstances, water molecules in the fresh water will penetrate to the sea water side under the action of osmotic pressure. When a pressure greater than the osmotic pressure is applied to the seawater side, the water molecules in the seawater can penetrate through the permeable membrane like the freshwater side, and the ions produced by the salt in the seawater cannot pass through the permeable membrane due to the large volume, thus making the water molecules It is separated from salt molecules to obtain fresh water. The membrane method is also called reverse osmosis, which uses the principle of osmotic pressure.
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