Water purification principle of reverse osmosis water purifier
Simply put, its technical principle is mainly membrane separation and filtration technology powered by pressure gauge. This technology originated in the 1960s, and was originally mainly used in aerospace research. With the continuous development and update of technology, it is gradually transformed into home use and is now widely used.
The pore size of RO reverse osmosis membrane is as small as nanometer (1 nm = 10-9 m), which is one millionth of that of hair. Invisible to the naked eye, bacteria and viruses are 5000 times more than it. Under a certain pressure, H2O molecules can pass through the RO membrane, while impurities such as inorganic salts, heavy metal ions, organic substances, colloids, bacteria and viruses in the source water cannot pass through the RO membrane, thus strictly distinguishing permeable pure water from impermeable concentrated water to achieve the purpose of purifying water.
Compared with bottled water, the purified water produced by RO reverse osmosis pure water machine is fresher, more hygienic and safer. Widely used in water purification brands: it can be drunk raw or boiled. The most prominent feature in this respect is that the kettle or electric thermos will never scale again.
Water purifier composition of reverse osmosis water purifier
General reverse osmosis water purifier adopts the form of five-stage filtration.
Primary filtration: At present, water purifiers on the market generally use 5μm PP cotton as filter element material to remove large particles of impurities such as rust and sand.
Secondary filtration: granular activated carbon is used as filtration material, which can effectively remove odor and improve the purity of water. It also has a high removal rate of chlorine, phenol, arsenic, lead, pesticides and other impurities and other harmful substances in water.
Three-stage filtration: PP cotton of 1μm is used as the filter material, and some manufacturers use compressed activated carbon as the filter material. Strengthen the effect of primary and secondary filtration.
Four-stage filtration: RO membrane, made of specific polymer materials, with selectivity. It can selectively permeate some components in water and aqueous solution under the action of external pressure, so as to achieve the purpose of purification or concentration and separation.
Because the pore size of reverse osmosis membrane is very small, it can effectively remove dissolved salts, colloids, microorganisms and organic substances in water.
It is the main component of reverse osmosis water purifier, and its performance index directly determines the effect of water purifier.
Five-stage filtration: after activated carbon, the main function is to improve the taste of water.
RO water purifier is widely used in military, medical, industrial, civil and other fields because of its excellent performance. Known as one of the six high-tech in this century. In our daily life, the water produced by pure water is fresher, more hygienic and safer than bottled water, and it is also more hygienic and delicious when used for cooking. Bathing with pure water can remove impurities from the skin, moisturize the skin and play a natural beauty effect; Water purifiers and water purifiers can provide water for small household appliances such as humidifiers, steam irons and beauty instruments, and there will never be annoying scale; The water produced by the water purification equipment using this technology is used with the ice maker, and the ice cubes made are crystal clear without any peculiar smell.