Reverse osmosis technology is the use of differential pressure as the power of membrane filtration technology

Reverse osmosis technology is the use of differential pressure as the power of membrane filtration technology, originated in the us aerospace science and technology research in the 1960 s, after gradually into civil, has been widely used in scientific research, medicine, food, beverage, chemical, electric power, electronics, paper, etc.

RO reverse osmosis membrane pore size is small to nanoscale ( Nano = 10 to 1 9 meters) Can, under certain pressure, H2O molecules through the RO membrane, and the source water of inorganic salt, heavy metal ions, organic matter, colloid, bacteria, viruses and other impurities through the RO membrane, which can be through the water and can't through the enrichment of water strictly separated.

sintered filter equipment principles

when the pure water and brine is separated by a semipermeable membrane is ideal, the ideal semi-permeable membrane allows only by and prevent salt by water, the membrane water of pure water side will spontaneously through a semipermeable membrane into the salt water on one side, this phenomenon is called osmosis, if put pressure on the salt water side of the membrane, then the spontaneous flow of water is restrained and slow down, when the pressure reaches a certain value, net flows of water through the membrane is equal to zero, the pressure is called osmotic pressure, when in film brine lateral pressure is greater than the osmotic pressure, the flow of water will be reversed, at this point, the water in the salt water will flow into the water, the above phenomenon is the reverse osmosis water ( RO） The basic principle of treatment