What are the types of water purifiers? What kind of water quality does it take to make coffee?

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At present, there are many kinds of household water purifiers on the market, various concepts and various water purification technologies are dazzling. Below, the editor sorted out and summed up several types of household water purifiers, let's learn about it!

What kinds of water purifiers are there? Introduction of 7 types of water purifiers

1. PP cotton filter element water purifier

That is, the single-barrel water purifier with all kinds of PP cotton filter elements, the price of the machine is generally low, but the filter elements are easy to clog, the replacement frequency is high, and the filtration accuracy is not very high, this is only used for the preliminary filtration of water and can not be drunk directly.

2. Composite sintered activated carbon water purifier

The main filter medium is activated carbon rod. Activated carbon rods are usually fired from activated carbon powders of different sizes and adhesive materials at high temperature.

Features: due to the porous structure of activated carbon powder (it is estimated that the specific surface area of 3 to 5 grams of active carbon powder is the size of a standard American football field), the fired activated carbon rod is very dense and has high removal efficiency for pollutants such as odor, odor, residual chlorine and volatile organic compounds in tap water. Activated carbon rods produced by some manufacturers can even filter sporangia according to American NSF53 standards. And can retain the minerals in the water, without the use of microfiltration, ultrafiltration and other additional filter media.

In addition, in the firing process of activated carbon rods, other filter media can be added through a special process formula to make activated carbon rods have more functions of removing volatile organic compounds (VOC), heavy metals and other indicators.

Due to the excellent performance of composite sintered activated carbon rods, this kind of products can be directly used in drinking, cooking and other occasions with high filtration requirements.

This kind of product can also integrate medical-grade folding bacteria removal membrane, which can achieve 0.2 micron absolute filtration accuracy, effectively filter more than 99.99% of pathogenic bacteria, spore cysts and other microorganisms in water, and ensure cleaner drinking water. The common standards or specifications of composite sintered activated carbon water purifiers are the hygienic Safety and function Evaluation Specification of drinking Water quality processors of the Ministry of Health of the people's Republic of China (MOH) and NSF/ANSI 42, NSF/ANSI 53 of the National Health Fund (NSF).

3. RO reverse osmosis pure water machine

The pure water machine can completely remove the harmful substances in the water and remove the minerals in the water at the same time. The purified water is pure water. The pressure of the water is not enough for its working pressure, so it also needs a booster pump, with the help of electricity and pressure. Its big disadvantage is that there is a lot of waste water, which generally needs to be filtered out about 50% of the waste water. It has higher purification cost and less water production, so it can only be used for

4. Clean drinking machine

The compound filtration design of imported non-woven fabric, Japanese ultrafiltration membrane and imported coconut shell activated carbon can effectively filter out bacteria in the water, as well as chlorine, pathogenic microorganisms and other harmful substances, and the external kettle can also avoid drinking thousands of boiling water with excessive heavy metals. To ensure that the purification effect of direct drinking tap water is still an integrated design, which can prevent secondary pollution.

5. Ultrafilter

Ultrafiltration water purifier can effectively remove sediment, suspended solids, rust, bacteria, colloids and some macromolecular organic matter, and can effectively retain some minerals and trace elements that are beneficial to us. Its advantages are that the filter element has a long service life, large water output, no need to add electricity and pressure, and compared with other purification equipment, the cost is lower, so it is very suitable for domestic water purification. The big disadvantage is that it has no removal effect on heavy metals and organic pollutants at all.

6. Ceramic filter water purifier

This kind of water purifier uses a plug-in ceramic filter element, which has a large water output and meets the water demand of the kitchen. the pore of the double control membrane ceramic filter element with the highest precision of 0.1 μ m is much smaller than the bacteria, so that the bacteria are completely isolated from the outside of the filter element, but the water can pass through. and retain beneficial minerals and trace elements in the water. At the same time, in the use of the water purifier will not produce secondary pollution, not afraid of blockage, to achieve the terminal water purification function. The disadvantage is that the life of the filter element is relatively short and the water output is small.

7. Water softener

The greatest effect of the water softener is that it can soften the water quality, reduce the hardness of the water, and then reduce the production of scale. The general softening method is to use recycled sodium resin to replace calcium and magnesium ions in water. But it can not play the role of purification, nor can it remove all kinds of harmful pollutants in the water.