Introduction: Human life is inseparable from the water, with the improvement of living standards, more and more people pay attention to the quality of drinking water, began to install a water purifier at home, but the water purifier is really useful? If the water purifier is good why people still buy pure water, the following to analyze the pros and cons of the water purifier:
1, cartridge water purifier: This water purifier uses a cartridge structure, according to different needs, can be matched with different cartridges, the advantage of the cheaper price, the filtration accuracy is relatively high (containing ultra-filter cartridge). The disadvantage is that the life of the cartridge is relatively short (for example, PP cotton life in 3-5 months, activated carbon life in about half a year, ultra-filtration life 1-2 years), the water output is small, only suitable for drinking.
2, water purifier: This water purifier uses RO reverse osmosis technology, first appeared in the aviation industry, is to solve the problem of drinking water for the airmen and research and development, the advantages of high precision water (in addition to the water molecules, any substance can not be), the shortcomings of the purified water is too pure, the lack of beneficial trace elements for the human body, an average of one cup of pure water, to produce 3 cups of waste water. The average cup of pure water, to produce 3 cups of waste water, and must use electricity at the same time.
3, ionized water machine: through the electrolysis of water electrolysis for acid and alkaline two kinds of water, alkaline water for drinking (because the human body is an acidic structure, often drink alkaline water, can regulate the acid-base balance, promote metabolism), acidic water used for bathing (or used to sterilize and disinfect), and at the same time, through electrolysis, change the molecular group of the water (water), change to 6 molecular groups of small water. changed to 6 molecular groups of small molecules). This type of water machine was first used as a medical device, for common skin diseases have certain therapeutic effects. His disadvantage is that the cost is high (about 6,000 for a normal one), while the pH value of the water also depends on the electrolysis version, which requires electricity.
4, magnetized water machine: Advantages: through magnetization, change the molecular group of water, more conducive to human absorption. Disadvantages: people with gastrointestinal disorders should be used with caution, because the magnetized water has a certain gastrointestinal stimulation.
5, the central water purifier: water purifier installed in the home of the total water intake pipe, so that all the water at home are purified, the advantages of a long life of the filter media (the shortest is also 5 years), easy to operate, and at the same time with the function of backwash, you can extend the life of the filter media. The disadvantage is that the purification accuracy is not particularly high, if used to deal with drinking water, the effect is not particularly good
In addition, there are many defects of the water purifier:First, the price is expensive, the use of the price is too high
Certain manufacturers of water purifiers in the sale of the process of one of the most commonly played card is? The most important thing to remember is that you can't afford to buy a new one. The most important thing to remember is that you can use a water purifier to protect your home from the elements, and you can use it to protect your home from the elements. The most important thing to remember is that you have to be able to get the best out of it. The lowest cost solution to the water quality problem. However, I found in the investigation process, the water purifier market is a mixture of good and bad, the price of 300 yuan?10,000 yuan, but it is understood that the sales price of 5,000 yuan below the water purifier is difficult to guarantee the quality. In addition, if the quality of water purification is to be guaranteed, the core equipment of the water purifier? Filter membrane should be based on the amount of water and its environment in about half a month on a replacement, and the cost of the filter membrane is relatively high, so for the average family without professional engineers, it is difficult to accurately grasp and realize.
Secondly, it is impossible to customize the water purification method according to the water quality, trying to? Use a key to open 10,000 locks?
From the perspective of water treatment science, different water quality must be customized for different water treatment programs. The general manufacturers of water purifiers are in accordance with a certain assumption of water quality design filtration program, can not be specifically tailored to the local tap water quality specific customized, however, due to frequent changes in the local water quality, such as the groundwater source for the dynamic Yellow River water, which may make the assumption of water quality design filtration program is invalid.
Third, the real water treatment device, must be equipped with specialized equipment and personnel
As the water purifier purified water quality is not stable, consumers should have a considerable amount of water production process and laboratory knowledge, the home must be equipped with relevant water quality, microbiological testing equipment, in order to test the water quality at any time, or the use of water purifiers may cause a new The source of pollution. Some experts say:? To ensure the water quality of the water purifier, a water quality laboratory and a microbiology inspector is essential.
Fourth, water purification is only an industrial test, so far there is no national standard
The relevant person in charge of the city's quality inspection department, compared with the tap water, bottled water, water purifiers, the market is small. Its users are generally busier or more trendy people, the popularity of the narrower, has not really formed a certain scale, so at present China has not developed a unified standard, there is no counterpart of the special quality inspection department. In recent years, although the country has introduced relevant regulations on the production of water processors to implement the declaration of health permit approval system, but for the more important impact on the safety of the use of the process but there is no testing requirements, which is greatly different from the barrel of water, bottled water management. Barrels of water, bottled water, the state quality supervision, health and other departments not only to regularly require companies to send inspection, but also in the market at any time sampling, and published in the main media.
Over the years, the water purifier industry has been lukewarm, and did not become the mainstay of the drinking water industry as quickly as the theory. At present, foreign developed countries basically give up, mainly in barrels and clusters of quality water supply to solve the problem of safe drinking water. Filtering methods and harsh conditions of use simply can not guarantee the use of water purifiers brought about by the safety of drinking water, and the current household water purification technology and use of the environment can not be suitable for the needs of the Chinese market.
Water purifier is really useful, the above is the analysis of the pros and cons of the water purifier, although useful but not too when the family, more suitable for the company and other places where the crowd is more concentrated!