Advantages: Purified water quality, good taste, no secondary pollution.
Disadvantages: Some waste of resources.
1. Ultrafiltration membrane water purifier
This type of water purifier uses a filter element structure. According to different needs, it is divided into various types and styles. It is the most popular type in the current and future markets. mainstream models on the market.
Generally, there are coarse filtration water purifiers and direct drinking series water purifiers; coarse filtration water purifiers generally use PP cotton filter elements and activated carbon filter elements, which can remove various impurities, rust, and mud visible to the naked eye in the water. It contains sand and other harmful substances, but it is not suitable for direct drinking; direct drinking water purifiers generally use ultrafiltration membrane filters or nanofiltration membrane filter water purifiers, which have large water output, high filtration accuracy, and can effectively remove various bacteria and viruses in the water. , E. coli and other macromolecules harmful to the human body. The filtered water can be drank directly, retaining minerals that are beneficial to the human body. It is equivalent to the quality of mineral water. It is suitable for use in the entire family or in the kitchen, or can be used only for drinking water. , has the advantages of low cost, easy installation and long service life.
The only disadvantage is that it cannot remove calcium and magnesium ions (water alkali) in the water. If used with a water softener, the effect will be perfect.
2. Pure water machine
This water purifier uses RO reverse osmosis technology. It first appeared in the aviation industry and was developed to provide drinking water for pilots. , the advantage is that the water output is highly accurate (except for water molecules, no substance can pass through), and it is pure water.
The disadvantage is that the purified water is too pure and lacks trace elements that are beneficial to the human body. On average, a cup of pure water will produce 3 cups of waste water, and electricity must be used; and the maintenance cost of the machine itself is also relatively high. , because there are many pipe joints, small problems such as water seepage are prone to occur.
3. Water softener
The water softener is based on the principle of ion exchange, that is, using Na to exchange Mg2 Ca2 to reduce the hardness in the water to below 70 mg/L and become soft water. Its main The function is to remove water, alkali and scale.
Advantages and disadvantages of water softeners: Advantages: remove scale, have good water-alkali effect, and have large flow rate, which basically does not reduce the water pressure.
Soft water has strong cleaning ability, strong effect on laundry, shower, beauty and skin care, and high degree of cleanliness. The use of soft water can avoid scaling of various water heaters and central air conditioners, prevent showerheads from being clogged, and extend service life; it can also Can reduce energy consumption.
At the same time, it also saves washing supplies and reduces the intensity of housework. Soft water is most suitable as domestic water.
Disadvantages: Bacteria, viruses and organic matter cannot be removed, and it is not recommended to drink them raw; salt is required for regeneration; and a certain amount of waste water is produced.
4. Magnetized water machine
Advantages: Through magnetization, the molecular groups of water are changed, which is more conducive to human body absorption. Disadvantages: People with gastrointestinal diseases should use it with caution, because magnetized water has certain irritation to the gastrointestinal tract.
5. Central water purifier
Install the water purifier on the main water inlet pipe of the home to purify all the water in the home. The advantage is that the filter material has a long life (the shortest time is 5 years), easy to operate, and equipped with backwash function, which can extend the life of the filter material.
The disadvantage is that the purification accuracy is not particularly high, and if it is used to treat drinking water, the effect is not particularly good.
6. Water ionizer
Through electrolysis, water is electrolyzed into acid and alkali water. Alkaline water is used for drinking (because the human body has an acidic structure and is often consumed Alkaline water can adjust the acid-base balance and promote metabolism). Acidic water is used for bathing (or for sterilization and disinfection). At the same time, it changes the molecular groups of water through electrolysis (changing water into small molecular groups of 6 molecules). .
This kind of water machine was first used as a medical device and has certain curative effects on common skin diseases.
The disadvantage is that the cost is high (the ordinary one is about more than 6,000), and the pH value of the water also depends on the electrolytic plate, which requires electricity. It is also recommended to be used under the guidance of a doctor. Blind use may cause side effects for some people who are not suitable for their physical constitution.
Extended information;
Water purifier, also called water purifier and water purifier, is a water treatment equipment that performs deep filtration and purification of water according to the requirements for water use. The water purifier we usually talk about generally refers to a small purifier used at home.