Water purifier, also known as water purifier, water filter, is the use of water according to the requirements of the water quality of the depth of filtration, purification and treatment of water treatment equipment. Usually referred to as water purifier, generally refers to the use of small filters for home use, the core of the technology for the cartridge device in the filter membrane, the main technology from the ultrafiltration membrane and RO reverse osmosis membrane two kinds of Nobana water purifier to analyze the two kinds of look.
One, the advantages of different
1, reverse osmosis water purifier: microfiltration, adsorption, ultrafiltration, reverse osmosis, ultraviolet sterilization, ultra-purification and other technologies in one, fresher, more hygienic, safer.
2, ultrafiltration water purifier: produced water can be directly drinkable; the latest generation of cartridges, high filtration precision, long service life, its water hammer, pressure resistance and other tests have passed the NSF test standards.
Second, the shortcomings of different
1, reverse osmosis water purifier: water for direct drinking of pure water, water is smaller, the ratio of roughly 4 to 1, discharged wastewater is undrinkable
2, ultra-filtration water purifier: ultra-filtration water purifier water ratio of 2 to 1, filtered water can be drunk directly, but the premise is that the normal tap water, after all, ultrafiltration membranes are only A physical filtration, chemical substances can not be filtered, so there is no problem with the general tap water filtration. But the taste of the water after ultrafiltration membrane filtration is not as good as reverse osmosis membrane.
Three, the principle of different
1, reverse osmosis water purifier: reverse osmosis membrane is dissolved in the water through the permeability of the membrane is harmful to the human body to remove heavy metal ions, but also filter out other ions are not conducive to good health, and is very effective in dissolving and removing the water of chlorine, carbon tetrachloride, and other organic compounds in the water, the water molecules in the water for the benefit of human beings to leave, and other Impurities such as bacteria, pollutants, viruses, limescale, etc., are turned into concentrated water to be eliminated.
RO reverse osmosis water purifier has a layer of RO membrane, the pore size of this membrane is as small as nanometer level, and as small as viruses, bacteria, its volume is also the RO membrane pore size of thousands of times. After the RO membrane is basically only water, does not contain other elements, filtered water can be raw drinking can also be boiled.
2, ultrafiltration water purifier: ultrafiltration membrane purification technology is a purely physical filtration, which relies on the ultrafiltration membrane surface densely covered with microscopic holes for screening, filtration accuracy depends on the ultrafiltration membrane pore size and pore size uniformity, the suspended solids in the water, particles, bacteria, colloids and viruses and other macromolecular substances can be retained. There is a layer of ultrafiltration membrane inside the ultrafiltration water purifier, and the pore size precision of this layer of filtration membrane ranges from 0.01 to 0.001 μm, which is an order of magnitude larger than that of RO reverse osmosis water purifier. At the same time, the ultra-filtration membrane not only allows water to pass through, but also allows some small molecules of smaller size to pass through.