Household water purifiers have gradually entered our daily life, but do you really know about water purifiers? Let's give you some relevant knowledge today.
1、 What is the function of water purifier
In our daily life, when our drinking water is delivered to thousands of households, it is often accompanied by serious secondary pollution, which mainly includes red insects, heavy metals, and residual chlorine and hydrocarbons generated after water purification. The main function of water purifier is to help us purify these things, and also improve the sense of drinking water.
2、 How the water purifier works
The water purifier enters the purification system by pumping the tap water into the machine body along the water pipe. In the evolution system, most of the pollutants and harmful substances in the water are intercepted and absorbed through the PP cotton and activated carbon filter element, mainly through the high-density infiltration filter screen above to filter various impurities in the water by water pressure, including red worms, rust, organic floats, sediment, etc, Then, RO reverse osmosis technology is used to further filter out the more subtle carcinogens in the water, such as residual chlorine and excessive heavy metals. Finally, the purified water is released from the faucet, so that people can drink relatively clean water, and the wastewater containing impurities generated during purification is discharged.
3、 What is the purification level of the water purifier
At present, RO reverse osmosis technology is widely used in water purifiers on the market, which can reach 5 levels of filtration
Level 1 5um PP cotton (used to prevent scale, rust, impurities, etc.)
Level 2 Granular activated carbon (for adsorption of chemicals)
Level 3 1um PP cotton or compressed activated carbon (CTO)
Level 4 RO membrane (key filter element)
Level 5 Rear coconut shell activated carbon filter element (used to improve the taste)
The purification capacity is between the drinking water purified by ultrafiltration machine and pure water.
At present, the only recognized purification method in the world that can remove the secondary pollutants, residual chlorine, heavy metals and other substances in tap water caused by filtration is the RO reverse osmosis filter element. Take the "Smith" brand water purifier on the market as an example, and use the MAX3 generation RO reverse osmosis technology water purifier. The so-called RO reverse osmosis principle is to apply greater pressure on the raw water side than the natural osmosis pressure, Make the water molecules reverse osmosis from the side with high concentration to the side with low concentration. Since the pore size of reverse osmosis membrane is far less than hundreds or even thousands of times of the case toxin and bacteria, it can remove impurities, thus achieving the purpose of water softening and purification. Its advantages are small size, suitable for domestic water purifiers.
4、 What is the displacement of water purifier
The discharge capacity of water purifier usually refers to the total amount of purified water that can be produced per hour. The impact of this displacement is that the waiting time of the daily household water purifier will affect the smoothness of the water flow in people's daily life. The higher the corresponding value is, the better. For example, the Smith R600ETD1 water purifier can reach a displacement of 1.6L/min, which is basically consistent with the original water outlet speed of the faucet.
5、 What is in the filter element of the water purifier
The filter element of the water purifier is the most core part of the water purifier. Take the Smith (A.O. Smith) water purifier R600ETD1 AO for example, the composition usually includes
PP cotton is used to filter large particles of impurities.
Carbon fiber can effectively absorb residual chlorine, disinfection by-products, organic matter, color, odor and other impurities in water.
MF filter element to intercept bacteria and viruses
Granular activated carbon is used to improve the taste and make the water sweet and delicious.
The filter element can be said to be the core component that affects the purification capacity of the water purifier. The filter element of many products on the market corresponds to its products. At present, the better one on the market is the five-grade purification filter element, which can complete all the above functions and ensure the purification efficiency.