Home > Industry Knowledge > Content

What is RO membrane?

Sep 22, 2017

As the name suggests RO membrane shell is loaded RO membrane material, the RO membrane from the protective effect.

RO membrane / RO membrane shell

 

RO is the abbreviation of English Reverse osmosis membrane, the Chinese means: reverse osmosis, the general flow of water from low concentrations to high concentrations of water, once pressurized, will flow from high concentrations to low concentrations, the so-called reverse osmosis principle: RO membrane pore size is one millionth of the hair (0.0001 microns), generally the naked eye can not see the bacteria, the virus is its 5000 times, so only the water molecules and some beneficial human mineral ions can pass, the other Impurities and heavy metals are discharged from the waste water pipe, all desalination process, as well as space people waste water recycling treatment are used this method, so RO membrane, also known as in vitro high-tech artificial kidney. Reverse osmosis is a new membrane separation technology developed in the 1960s, which relies on the reverse osmosis membrane to separate the solvent and solute in the solution under pressure. The full name of the reverse osmosis is "REVERSE OSMOSIS", abbreviated as RO (Reverse Osmosis) reverse osmosis technology is the use of pressure table difference as the driving force of the membrane separation and filtration technology, from the United States in the 20th century, the sixties of the aerospace science and technology research, and gradually transformed into civilian, has been widely used in Scientific research, medicine, food, beverage, desalination and other fields. (1 nanometer = 10 * -9 m), under certain pressure, H2O molecules can pass through the RO membrane, and the source of inorganic salts, heavy metal ions, organic matter, colloid, bacteria, viruses And other impurities can not pass through the RO membrane, so that can be pure water and through the concentrated water can not be distinguished. The general tap water after RO membrane filtration after the pure water conductivity 5μs / cm (RO membrane filtration effluent conductivity = water conductivity × desalination rate, the general import reverse osmosis membrane desalination rate can reach more than 99%, 5 years to run Can guarantee more than 97%. On the water conductivity requirements are relatively high, you can use two reverse osmosis, and then after a simple treatment, water conductivity less than 1μs / cm), in line with national laboratory three water standards. And then through the atomic-level ion exchange column filter, the water resistivity can reach 18.2M. Cm, more than the national laboratory level of water (GB 6682-92).