Ten brand water purifier water purifier can benefit the National Investment low supply water purifier water treatment by the way, can be divided into the following 10 categories: 1. Softening refers to water hardness (mainly water calcium and magnesium ions) to remove or reduce certain extent. Water softening process, just to soften water, but can not improve water quality. 2. Distillation refers to boiling water, steam is then collected, allowed to cool and condense into liquid. Distilled water is extremely safe drinking water, but there are some issues to be further explored. Because of distilled water does not contain minerals, which became the reason for human life made easy opponents aging. Another advantage of the higher cost of distillation, consuming energy, not removal of volatile substances. 3. Boiling tap water to boil drinking means, which is an ancient method commonly used in the country. Boiling water can kill bacteria, but some chemical substances and heavy metals can not be removed, even if its content is very low, so the drink is still unsafe. 4. Magnetization method is the use of magnetic water treatment effect, called magnetic water treatment. Magnetization process is the process water after the direction perpendicular to the magnetic field lines through the magnet, i.e., the magnetization process to complete the process. China for water magnetization process is still in its infancy practice and research, foreign purifier does not require magnetic feature, because water does not belong to the scope of magnetized water, but belong to medical problems. 5. Mineralization law refers to the water again to add beneficial to human body mineral elements (such as calcium, zinc, strontium and other elements) on the basis of purification. Commercial water purifier usually by adding stone in water purifier to achieve the purpose of mineralization, but the Ministry of Health has explicitly stated: "wading products not promote any health function." 6. Ozone, ultraviolet disinfection sterilization these areas only, can not afford to remove heavy metals in water and chemical substances, the body to kill bacteria in the water still remains, and become pyrogen. 7. Activated carbon adsorption can be divided into the following three forms 7.1 granular activated carbon is more commonly used, the use of nature, coal, shell (core) and other carbonaceous materials by chemical or physical activation of the legal system. It has a lot of pores and specific surface area, which has a strong adsorption capacity, can effectively adsorb organic pollutants in water. In addition, in the activation process, the non-crystalline form some parts of the activated carbon surface oxygen functional groups, these groups make chemically activated carbon adsorption and catalytic oxidation, reduction performance, can effectively remove some metal ions. 7.2 infiltration silver activated charcoal and silver will be together, not only for the adsorption of organic pollutants in water, but also has a bactericidal effect, but also the growth of bacteria in the activated carbon will not solve the water purifier sometimes nitrite including the problem of high water tolerance. When the water through seepage silver activated carbon, silver ions will gradually released, played the role of disinfection. Because of activated carbon to remove the water color, bromine, chlorine, iron, arsenic, mercury, cyanide, phenols, etc. have a good effect, more than 90% sterilization effect, it is applied in a small water purifier. A new 7.3 fiber activated carbon adsorption material organic carbon fibers formed by the activation process, with well-developed pore structure, large specific surface area, and numerous functional groups. Abroad using activated carbon fiber solvent recovery, gas purification, has made remarkable achievements; also done a lot of research work in water treatment applications. 8. RO reverse osmosis RO reverse osmosis membrane is a reverse osmosis and other international popular way, do not add to the raw water filtration treatment (physical method) after any compound produced for direct human consumption of pure water machine (also known as Terminal water purification equipment). Using water meets Chinese Ministry of Health, "drinking water health standards" (2001) municipal tap water as raw water, a PPF meltblown filter raw water pre via two carbon filter (1 granular activated carbon, a sintered activated carbon) filtered, and then applying pressure to make it through the pore size of the pre-millionth microns RO filtered water (reverse osmosis, English Reverse Osmosis) membrane, and finally through the material for a Nutshell (coconut shell) of silver activated carbon (aka Small T33) adjusting the pH of the water (to make the system out of pure water becomes sweet and mellow taste) and the production of pure water. RO reverse osmosis water purification system of pure water with respect to bottled water fresher, healthier, safer, and it's very versatile: you can drink, you can also boil drinking, in this respect the most prominent feature is the kettle or electric thermos never furring; the water used for cooking, more health, more palatable; with pure water bath, you can remove the impurities on the skin, moisturize the skin, to play the effect of natural beauty; can be provided to the humidifier, steam iron, beauty instrument, such as small appliances needed water, and never will be annoying scale; and supporting the use of ice, ice made crystal clear, without any odor. Reverse osmosis technology: reverse osmosis original is REVERSE OSMOSIS, it is a collection of multi-national NASA scientists, government support, spending billions of dollars, after years of study together. Reverse osmosis principle is to exert greater pressure than the natural osmotic pressure in the raw water side, a high concentration of water molecules by osmosis to the low concentration of one party. Since the pore size is far less than the cases of bacteria and virus hundreds of times or even thousands of times or more, so a variety of viruses, bacteria, heavy metals, soluble solids, organic pollution, calcium and magnesium ions, etc. can not through a reverse osmosis membrane, so as to achieve water softening purification purposes. 9. Microfiltration and ultrafiltration microfiltration is cellulose or a microporous membrane made of a polymer material, with its water retention uniform pore size to particles, bacteria, colloids, etc., so that it does not pass through the membrane are removed. This microporous membrane filtration technology, also known as grain density filter technology to filter micron or nanometer-sized particles and bacteria. Ultrafiltration and microfiltration membrane separation technology belong to, there is no clear line between the two, ultra filtration pressure of work generally about 0.3 MPa, can remove macromolecules, bacteria, viruses, etc., but a lower flux . 10. When the compound is difficult to remove when a process harmful substances in water, the use of two or more kinds of processes is the compound. Such as activated carbon adsorption, ultraviolet disinfection, activated carbon adsorption reverse osmosis, activated carbon adsorption micro filtration (ultrafiltration), polypropylene microfiber, activated carbon, microfiltration (ultrafiltration) and so on. In the complex water purifier, water purifier composite membrane technology, excellent performance, particularly more significant effect in the removal of microorganisms (bacteria, algae, etc.), some of which are of good quality water purifier can drink , has been welcomed by consumers, has become a hot water purifier current development. The design and manufacture of water purifier is a comprehensive science and technology. Design principles purifier should sake of users. Water features on various parts of China, the Yangtze River and personnel populated areas of organic pollution, and small towns across the country supply enterprises and the use of regional groundwater bacterial contamination problems exist. Therefore, only part of the quality of the water purifier can adapt to different water quality across the country, so the water purifier manufacturers should be based on water conditions in different regions, and carefully designed to adapt to different sources, but good treatment effect purifier. In short purifiers related to the millions of people of drinking water safety and health, for their quality and water quality water purifier manufacturers must receive attention, and continue to absorb and use of advanced technology and equipment, and constantly improve water purifier quality in order to meet people's growing consumer needs.