RO membrane water purifier filter :
RO  is the abbreviation of Reverse Osmosis in English, which means reverse osmosis. Reverse osmosis is a new membrane separation technology developed in the 1960s. It relies on reverse osmosis membranes to separate solvents and solutes in solution under pressure. the process of. The full English name of reverse osmosis is "REVERSE OSMOSIS", abbreviated as "RO".
RO (Reverse Osmosis) reverse osmosis technology is a membrane separation and filtration technology that uses osmotic pressure difference as the driving force. It originated from the research of aerospace science and technology in the United States in the 1960s, and gradually transformed into civilian use. Food, beverage, seawater desalination and other fields.
The RO reverse osmosis membrane has a pore size as small as nanometers (1 nanometer = 10 * -9 meters). Under a certain pressure, water molecules can pass through the RO membrane, and inorganic salts, heavy metal ions, organic substances, colloids, bacteria, and viruses in the source water. Impurities and other impurities cannot pass through the RO membrane, so that pure water that is permeable and concentrated water that is permeable are strictly distinguished
Reverse osmosis, also called reverse osmosis, is a membrane separation operation that uses pressure difference as the driving force to separate the solvent from the solution. Pressure is applied to the material liquid on one side of the membrane. When the pressure exceeds its osmotic pressure, the solvent will reversely permeate against the direction of natural permeation. Thus, a permeated solvent, ie, a permeate, is obtained on the low-pressure side of the membrane; a concentrated solution, ie, a concentrated liquid, is obtained on the high-pressure side. If seawater is treated with reverse osmosis, fresh water is obtained on the low-pressure side of the membrane, and brine is obtained on the high-pressure side.
During reverse osmosis, the permeation rate of the solvent, ie, the flow energy N, is: N = Kh (Δp－Δπ) (where Kh is the hydraulic permeability coefficient, which increases slightly with increasing temperature; Δp is the static pressure difference between the two sides of the membrane ; Δπ is the osmotic pressure difference of the solution on both sides of the membrane). The osmotic pressure π of the dilute solution is: π = iCRT (where i is the number of ions generated by ionization of the solute molecules; C is the molar concentration of the solute; R is the molar gas constant; T is the absolute temperature.)