In recent years, environmental pollution has become more and more serious, and many people are paying more and more attention to their own health. Therefore, many people choose to install a fresh air system when the new house is renovated. However, the fresh air system is not affordable to ordinary families. Therefore, many people turn their attention to drinking water, and more and more families are buying water purifiers. After all, the disease has come from the mouth and has to attract people's attention. There are many types of water purifiers on the market, so how to buy water purifiers? In the end, choose reverse osmosis or ultrafiltration, which is better? Xiao Bian deliberately went to consult a professional.
Whether it is reverse osmosis or ultrafiltration water purifiers, their core components are membranes, and the difference between the two is mainly reflected in the membrane components.
Normal permeation refers to placing two different solutions in the same container and separating them with a semi-permeable membrane. The dilute solution at one end naturally flows to the side of the concentrated solution at the other end, and a pressure is formed. The difference is called osmotic pressure.
Reverse osmosis refers to the application of a pressure greater than the osmotic pressure on the side of the concentrated solution. The concentrated solution will flow to the dilute solution. This flow direction is opposite to the original direction of penetration, so it is called reverse osmosis. The working principle of the water is like this.
Ultrafiltration refers to the purification of the solution, separation or concentration membrane through the separation technology to achieve the purification of the solution.
The difference between the two is: 1. The pore size of the membrane element, the pore size of the reverse osmosis membrane is only one percent of the ultrafiltration membrane, so the reverse osmosis water purifier can remove chemical pollutants such as heavy metals, pesticides and chloroform in the water, but the ultrafiltration water purifier Can't do this.
The ultrafiltration water purifier mainly removes particulate pollutants and bacteria from the water, but these reverse osmosis water purifiers can also do so.
2. For the use of clean water, the reverse osmosis water purifier uses a quality water supply, pure water is for drinking, and concentrated water is used for washing; however, ultrafiltration water purifiers are generally used for washing, unless the tap water quality is very high. When it's good, it can be used directly as drinking water.
In addition, reverse osmosis water purifiers have these advantages over ultrafiltration water purifiers: 1. Can remove all kinds of impurities in the water to make the water quality safer; The taste of the water is better; 3. It can reduce the hardness of water and make the boiler not scale. These are not possible with ultrafiltration water purifiers. Therefore, as a drinking water use, Xiao Bian is still recommended to buy a reverse osmosis water purifier.
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