How does the ultra-pure water machine work?

The place we live in is polluted , and we will find that there are more and more filters, water purifiers, pure water machines and other filtration equipment in the current market. Therefore, although we cannot solve these problems quickly, there are also some devices that can effectively purify water, such as water purifiers. let's see!

The ultrapure water machine adopts methods such as pretreatment, reverse osmosis technology, ultra-purification treatment and post-treatment, which can almost completely remove the conductive medium in the water, and can also remove undissociated colloids, gases and organic substances in the water to very low water treatment equipment . Ultrapure water machine is also known as: ultrapure water machine, ultrapure water equipment, ultrapure water instrument, ultrapure water system, laboratory ultrapure water device, etc. The resistivity of the ultrapure water produced by the ultrapure water machine should usually be greater than 10 megohms, and water above 10 megohms is called ultrapure water. The effluent of good ultrapure water can reach 18.25 megohms.

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The ultra-pure water machine is roughly divided into four units: pretreatment, reverse osmosis, ultra-purification, and terminal ultrafiltration. The tap water first passes through the pretreatment unit to remove larger particles, suspended solids and some organic matter in the water. Then it enters the reverse osmosis unit to carry out interceptive removal of ionic substances and macromolecular substances (such as viruses, microorganisms, etc.) in the water. After that, it goes through the purification and ultra-purification unit to purify and ultra-purify the tiny ions remaining after being removed by the membrane, so as to reduce the ion content in the water to a trace level. Finally, UV, ultrafiltration and other technologies are used to ensure that the microorganisms, organic matter and pyrogens in the ultrapure water meet the needs of various experimental applications.

The ion exchange of the ultrapure water machine is a special solid adsorption process, which is carried out by the electrolyte solution of the ion exchanger. A general ion exchanger is a water-insoluble solid granular substance, that is, an ion exchange resin. It can absorb a certain cation or anion from the electrolyte solution, and exchange another ion with the same charge sign contained in it in equal amounts, and release it into the solution. This is the so-called ion exchange. According to the type of ions exchanged, ion exchangers can be divided into two categories: cation exchangers and anion exchangers.

We all know that water is composed of water molecules, but the impurities in it are not beneficial to our human body, but do a lot of harm. Then the above ultra-pure water machine can use ion exchange technology to achieve the effect of accurately purifying water sources, and it can also Through the large increase and decrease of steps to achieve the various types of water we need, the ultrapure water machine is more suitable for laboratory water.