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Infiltration technology is the most advanced and most energy efficient membrane separation technology. Reverse osmosis membrane, sodium filtration equipment, PP cotton, etc. The principle is that under the effect of osmotic pressure in the solution, based on other material can not be through the semi-permeable membrane which will leave to these substances and water. As the reverse osmosis membrane, pore size is very small (only 10A or so), so the water can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. (removal rate as high as 97-98%). System has good water quality, low energy consumption, pollution-free, simple process, easy operation and convenience.

Seawater reverse osmosis technique is commonly used, brackish water of fresh water; water softening treatment; wastewater treatment and food, medicine, chemical industry, purification, concentration, separation and so on. In addition, the reverse osmosis technology for desalination pre-treatment also achieved good results, enabling the load on ion exchange resins easily by more than 90% recycled resin dosage can be reduced by 90%. Therefore, not only cost savings, but also environmentally friendly. Reverse osmosis technology can also be used except in the water particles, organic substances, colloidal materials, the ion exchange resin to reduce pollution, extend the life of all have a good effect.

Reverse osmosis is the preparation of high water the most widely used as a desalination technology that separation of the object is the scope of the solution and the molecular weight ionic hundreds of organic matter, reverse osmosis (RO), ultrafiltration (UF), microporous membrane filtration ( MF) and electrodialysis (ED) is membrane separation technologies.

2) Applications

Nearly 30 years, reverse osmosis, electrodialysis, ultra filtration and membrane filtration has entered the industrial applications, rapid development in the semiconductor, IC manufacturing process, food, medicine and industry, usually as a high pure water reverse osmosis in desalination, Ultra-filtration water system is more than a post-processing, water treatment membrane filtration is used in the pretreatment and post-processing, used to filter particles and bacteria. Water is widely used in electronics industry, chemical raw material water, health water, food and drink water, soft water, industrial ultra-pure water and other industries.