Can the drinking water filters sold in the market achieve the purpose of filtration?
Currently on the market a variety of water filter is various, like PP cotton, activated carbon, ultrafiltration, reverse osmosis, ceramics etc., can effectively filter the impurities and bacteria, water and minerals, the filtering process of professional knowledge is more complex, I tell you to do a presentation, but according to classification can be divided into the aperture.
4, reverse osmosis: filter pore size of 0.0001-0.001 microns, typical applications such as reverse osmosis membrane, can filter out ions, basically only water molecules through, but need energy consumption, waste water more;The drinking fountains sold on the market are generally ultra - filtration machines, reverse osmosis machines, ceramic machines, each with its own characteristics, can be purchased according to their own needs:1, the whole house water purification: it is recommended to buy ultra filter machine, low cost, no energy consumption, long service life, purification capacity, after the activated carbon, you can drink straight;2, straight drink: it is recommended to use reverse osmosis machine, but the need for electricity pressure, waste water accounted for 7.
1, micro filter aperture in 0.2-20: micron range, typical applications of PP cotton, activated carbon, can filter sediment, algae and bacteria;2, 0.005-0.2: ultrafiltration filter aperture in micrometers, particularly pressure and internal pressure of two, typical applications of PP film, PVDF film, PS film, can filter most viruses, including microfiltration, organic matter; ultrafiltration membrane is a new material, is widely used in the water treatment industry, especially PVDF (polyvinylidene fluoride) ultrafiltration membrane has the characteristics of strong acid and alkali resistance, aging resistance, large flux, easy cleaning,3, 0.001-0.02: nanofiltration filter aperture in micrometer range, typical applications of PP cotton, activated carbon, can filter most of the organic matters;
