What is the technological content of the water purifier?

Nowadays, people are paying more and more attention to drinking water, water processors such as water softeners and water purifiers are increasingly entering people's lives, and the treatment technology is becoming more and more "superb".

So, what is the technological content of the water purifier? Can the water purifier guarantee the function of "water purification"? What kind of drinking water is healthy and safe?

1

Water softener softens the water but it is not drinkable

Water is soft and hard, and the hardness of water is also called salinity. It refers to the content of calcium and magnesium salts dissolved in water. Soft water includes rainwater, snow water, purified water, etc .; hard water includes tap water, as well as surface water and groundwater in nature.

Tap water is hard water and can be softened by a water softener.

The water softener uses ion exchange technology to exchange the functional ions of filter materials such as resin and calcium and magnesium ions in the water, thereby absorbing excess calcium and magnesium ions in the water, reducing water hardness and removing scale (calcium carbonate or carbonic acid) Magnesium).

Although the softened water removes excess calcium and magnesium compounds in the water, it does not remove the harmful substances that may exist in the tap water due to secondary pollution problems. In addition, the water softener uses a polymer compound filter material, which will affect the water quality, so it is recommended not to directly drink water that has been softened.

Although the softened water can not be directly consumed, it is very good as domestic water. It removes the alkali and scale, which can better avoid the scaling problem of water pipes, faucets and wading equipment. At the same time, it is softer and more comfortable than ordinary tap water for bathing and washing clothes. Long-term bathing with soft water has a beautiful skin effect; the washed clothes are also cleaner.

2

Purified water of water purifier should be graded

The water purifier uses filtration technology to separate particulate matter from water through semi-permeable materials. The core component is a filter element. Different models have different combinations of filter elements, ranging from first-level filters to nine-level filters.

The microfiltration water purifier uses a filter membrane with a pore size of 0.02 microns to 10 microns as a medium to filter water, which can remove various impurities, rust, sand, odor, residual chlorine, and some heavy metals seen in the water. At present, the most commonly used microfiltration water purifiers on the market use PP cotton filter and activated carbon filter. Its technology is relatively mature and the application is relatively wide, but it needs to be cleaned and replaced in time, and the service life varies from 3 to 18 months.

The ultrafiltration type water purifier uses ultrafiltration membrane or nanofiltration membrane filter element, which uses the filter membrane with pore size of 0.001 microns to 0.2 microns as the medium to filter the water, which can remove bacteria, viruses, E. coli and other harmful water Macromolecular organic matter. However, relevant experts believe that if there are only ultrafiltration membrane filter elements in the ultrafiltration water purifier, without PP cotton, activated carbon and other filter elements, odor and residual chlorine cannot be removed, it is easy to block, and the service life of the membrane is shortened, so it is recommended to choose this A model used in combination with three filter elements.

3

Reverse osmosis water purifier has the highest degree of purification

Reverse osmosis water purifier is the water purifier with the highest filtration precision on the market, and its core is the reverse osmosis membrane. The filtration pore size of the reverse osmosis membrane is one part per million of hair hair, and one part per thousand of bacteria and viruses. The working principle of reverse osmosis membrane technology is to apply pressure to tap water so that water molecules and ionic mineral elements can pass through the reverse osmosis membrane, while inorganic salts, organic matter, bacteria, viruses, etc. dissolved in water cannot penetrate the reverse osmosis membrane .

Similarly, the reverse osmosis water purifier also combines PP cotton, activated carbon and other filter elements to intercept large particles of impurities, prevent clogging, and extend the life of the reverse osmosis membrane.

Use the water purified by reverse osmosis water purifier to cook, cook soup, make tea, and make coffee, which can ensure the original flavor, fully decompose the nutrients in the food, and is more suitable for human body absorption. The use of pure water in a humidifier or beauty device that requires water is more beneficial to skin health.

However, it should be noted that if the quality of the water purifier is not enough, high-quality water may also be contaminated, and the quality of the water purifier filter core is directly related to the quality of the water and the service life of the water purifier.