The purification principle of ultrafiltration membrane water purifier, the working principle of ultr

In fact, it is very simple, that is, the substances in the water are physically filtered through the ultrafiltration membrane to achieve the effect of purification. Clean water molecules, as well as minerals in the form of ions in the water, can pass through ultrafiltration membranes due to their extremely small size; For example, dirty things such as rust and colloids are relatively large and cannot pass through the ultrafiltration membrane, so they are left in the membrane and washed away when the water is re-opened.

The working principle of ultrafiltration water purifier, at present, there are many kinds of water purifiers on the market, and people who want to buy ultrafiltration water purifiers can understand its working principle and process, which is helpful for use and maintenance. Let's take a look at the working principle of ultrafiltration water purifier.

Ceramic cartridge filtration

A water purifier that uses a ceramic filter cartridge to filter microorganisms has high filtration accuracy and can remove germs and insect eggs in the water. When filtration, it uses micropores to filter impurities, with high stability. The filtration grade is closely related to the pore size of the filter element, so it is important to look at its pore size when selecting.

Fiber filter cartridge water purification

Water purifiers that use glass fiber and hollow fiber filter cartridges can remove harmful substances from the water, because glass fibers are microns, and most of the harmful substances cannot pass through. It has a long service life of around 1000L. I purchase it and can use it for a long time.

Iodine resin sterilization

Iodine resin sterilization was used in the early days'Outdoor water purification technology, supplemented by activated carbon to eliminate odors, when using, we must pay attention to its life, because with the consumption of iodine resin, the sterilization ability of the water purifier will also decrease, and it is best to replace the iodine resin regularly.

Activated carbon filter cartridge purifies water

High-quality activated carbon has a good removal effect on organic micropollutants, but it is easy to adsorb saturation and needs to be replaced regularly, otherwise the Zijun produced in the water will endanger people's health. At present, most of the water purifiers on the market use this water purification technology, such as AUTEK and so on.

Ultrafiltration water purifier water production and flushing process

Filtration process

The ultrafiltration water purifier uses the ultrafiltration membrane as the filter medium, and the micropores only allow small molecule substances in the water to pass through, and all large molecule substances are isolated, which truly realizes the filtration of harmful substances. When it works, it is driven by the pressure difference between the two sides of the membrane, and there are about 6 billion micron microns of micropores in the wall of the membrane filament, which can filter out even the smallest bacteria, because the volume of bacteria is much larger than microns. In addition, rust, suspended solids, sediment, etc. are filtered out of the water.

The whole water purification process is efficient and fast, without secondary pollution.

Water production process

When tap water enters the water purifier and passes through the ultrafiltration membrane tube, under water pressure, the micropores of the membrane only allow small molecules to pass through, such as beneficial minerals and trace elements, and finally make pure water that is beneficial to the human body. The original sediment and macromolecular organic matter in the water will be filtered out, and the whole water production process ensures the cleanliness of the effluent.

Rinse process

When filtering water, a large number of harmful substances in the water, such as bacteria, rust, colloids, suspended solids, etc., need to be washed on the surface of the ultrafiltration membrane to prevent clogging. If water yield decreases, it may also be due to not flushing the ultrafiltration membrane regularly. By simply rinsing the ultrafiltration membranes, the water yield can be restored to its original level.

With the deepening of industrialization, there are more and more pollutants in the rivers, and the tap water is taken from the rivers, which will inevitably receive some pollution. So, how does water purifier filtration work?

Water purifier filtration uses a filter element, which is a physical filtration process. It separates water molecules and other impurities through the size of the grid on the cartridge.

Water purifiers generally have a variety of filter elements, and each filter element targets different impurities. For example, there are PP cotton, activated carbon, ultrafiltration membrane, reverse osmosis RO membrane and other types.

PP cotton is mainly through the water rust, sediment and other large particles of matter, through the filter orifice on the PP cotton, the large particle matter is isolated on the outside.

Activated carbon has the effect of absorbing stuffiness and calling for attachment, which can adsorb residual chlorine in tap water, remove the odor of tap water, adsorb color substances, and restore the thoroughness of tap water.

The ultrafiltration membrane filters bacteria and viruses in tap water, and the ultrafiltration membrane further narrows the pores, so that the passage rate of bacteria and viruses is greatly reduced.

RO membranes can filter all of the above impurities because they have the smallest pores and are mainly used to filter heavy metals from tap water. At this point, almost all the pollutants in the tap water have been filtered, and the chain deficit can be directly drunk.