Water purifier filter to teach you the second to understand the correct posture of drinking water

Due to the frequent stimulation of water pollution incidents, people's health awareness has been qualitatively improved, and the water purifier has quickly become "popular" in just a few years. However, the survey data shows that although people are more aware of water pollution and realize that water purifiers are needed to protect drinking water safety, most people do not have a clear understanding of water purifiers. As far as the various filters of the water purifier are concerned, its characteristics, working principle and applicable scenarios, as a consumer, how much do you know?

Four major filter types dominate the mainstream

According to industry experts, according to the filtration accuracy, the current filter can be divided into four types: microfiltration membrane , ultrafiltration membrane , nanofiltration membrane, reverse osmosis membrane . Due to the difference in filtration accuracy, the four filter cartridges have different application scenarios. In order to enhance the filtering effect, the water purifier often applies different types of filter cartridges to different filtration links of the same product.

It is understood that the current PP cotton filter , activated carbon filter , ceramic filter, etc. are all in the microfiltration category. The filtration precision is generally 0.1~30 microns, and the service life can reach 6 months. It can remove the sediment and rust in the water. particulate impurities, but the face of the water of bacteria, viruses, organic matter, heavy metal ions and other harmful substances are powerless. Microfiltration membranes are usually installed in front of ultrafiltration membranes and reverse osmosis membranes. As pre-processors for ultrafiltration water purifiers and RO water purifiers , they can effectively protect ultrafiltration membranes and reverse osmosis membranes and extend the life of the machine. .

Since its inception, ultrafiltration membranes have been hailed as one of the six high-tech achievements of the 21st century. Ultrafiltration membrane filtration accuracy of 0.01 ~ 0.1 microns, life expectancy of up to 12 months, can filter out rust, sediment, suspended matter, colloids, bacteria, viruses, macromolecular organics and other harmful substances in the water, and can retain beneficial to the human body Some mineral elements. Ultrafiltration membrane cartridges are easy to operate, low in cost, do not require any chemical reagents, and have a large water production capacity to make full use of water resources. Therefore, ultrafiltration water purification products still occupy an important position in the market.

The reverse osmosis (RO) membrane is the most advanced filter cartridge with a life span of up to 24 months and a pore size of 0.0001 micron. Under certain pressure, only water molecules can pass through the reverse osmosis membrane, while the inorganic salts in the raw water. Heavy metal ions, organic matter, colloids, bacteria, viruses and other impurities cannot pass through the reverse osmosis membrane because their diameter is larger than 0.02 μm, so the water filtered through the reverse osmosis membrane is more pure. At present, reverse osmosis water purifiers have occupied an absolute dominant position in the market.

The nanofiltration membrane filtration precision is between ultrafiltration and reverse osmosis, which can intercept nanoscale materials, and the desalination rate is lower than that of reverse osmosis. Because nanofiltration is more efficient in removing natural organic matter from water and can properly retain low molecular weight inorganic components, nanofiltration is an ideal filtration technique. However, the nanofiltration technology is still immature and cannot filter heavy metals. There is no real nanofiltration water purification product on the market, and the nominal “nanofiltration” is actually a small pore size ultrafiltration membrane filter.

Household water purification must also be "reverse osmosis"

Authoritative data show that the current proportion of reverse osmosis (RO) water purifiers in the water purification market has exceeded 80%. In the industry's view, reverse osmosis water purifiers can occupy such a large proportion in the market, thanks to their superior water purification effect and long life. However, the reverse osmosis water purifier must continue to work hard on the filter itself and continue to innovate in order to "go to the next level."

Due to the traditional reverse osmosis technology, the reverse osmosis filter is not completely ideal. The wastewater ratio is as high as 1:3. The core that is not completely closed is also prone to bacterial growth. In the absence of automatic flushing function, the water is extremely vulnerable. Secondary pollution".

In the face of consumers' urgent demand for high-quality drinking water, enterprises need to spare no effort to develop and innovate, not only to provide consumers with innovative reverse osmosis water purification products, but also to create a full range of pre-sales and after-sales services for consumers to ensure the majority of consumption. Health and clean water is worry-free.

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