About the water purifier RO membrane, how much do you know

In the purchase of water purifiers, I believe we have heard of “RO membrane cartridge” or “reverse osmosis membrane cartridge”, some friends do not quite understand what it means.

Water purifier we also called reverse osmosis RO water purifier, from this name, we know the significance of the RO membrane in the water purifier, it exists so that the water purifier is worthy of the name, can filter out pure water for drinking.

Then RO membrane in the end what?

RO membrane is what RO is the abbreviation of English Reverse Osmosis, Chinese meaning reverse osmosis can also be called reverse osmosis. So “RO membrane” is the meaning of reverse osmosis membrane, sometimes called “RO reverse osmosis membrane”.

RO is a membrane separation technology, relying on the pressure difference, in the high concentration of the solution side of the pressure to make it flow to the side of the low concentration of the solution, the solution and solute separation technology.

Applied to the field of water purification, it is the initial filtration of water, and then further refine the filtration to remove heavy metals and other impurities in the water.

The advantage of doing so lies in the ability to fully guarantee the purity and safety of water.RO membrane filtration is actually the use of osmotic pressure difference as the driving force of the membrane separation and filtration technology.

In addition, because the RO membrane pore size is 0.0001 microns, is one millionth of a hair, so the RO membrane filtration effect is very good, can filter out the impurities in the water, colloid, heavy metal ions, organic matter, bacteria and viruses and so on.

RO reverse osmosis membrane and ultrafiltration membrane what is the difference?

1. two membrane water supply uses are not the same

RO reverse osmosis membrane is mainly used for household drinking water, with the continuous improvement of reverse osmosis technology, reverse osmosis water supply has been able to meet the entire kitchen water volume.

The ultrafiltration membrane water supply can only be suitable for household and washing.

2. The two membrane standards are not the same

RO reverse osmosis membrane standards are higher.

Ultrafiltration membrane qualified standard for 100 colonies per milliliter of water, and RO reverse osmosis membrane is 20 colonies per milliliter of water.

It can be said that RO reverse osmosis membrane standard is four times higher than ultrafiltration membrane.

3. The pore size difference between the two membranes

RO reverse osmosis membrane pore size for ultrafiltration membrane pore size of 1/100, so reverse osmosis membrane can remove the water of the very small organic molecules in the pollution, such as chemical organics, organic pesticides pollution.

And ultrafiltration membrane can not.

RO reverse osmosis membrane also has the role of softening water quality, hard water to soft water

RO membrane is how to come?The source of RO membrane, and seagulls have a great relationship.

In 1950, the American scientist DR.S.Sourirajan inadvertently found seagulls in the sea flight from the surface of the sea slurping up a large mouth of seawater, after a few seconds, spit out a small mouth of seawater, which gave rise to questions.

A seagull, being a land animal that breathes through its lungs, would never be able to drink seawater that is high in salt, so why would it drink it?

After autopsy, in the seagull body found a layer of film, the film is very precise, seawater by the seagulls inhaled into the body after pressurization, and then by the pressure of water molecules through the penetration of the film into fresh water, while containing impurities and high concentration of salt seawater will be spit out of the mouth, seagulls laryngeal mucous membrane tissue, which is the prototype of reverse osmosis membrane.

Seagulls spit out this small mouth of seawater, in fact, is the water purifier work produced after the “wastewater”.

RO membrane applications
RO membrane applications are very broad, from the beginning of the aerospace field to solve the astronauts' water problems, to the back gradually turned to civilian use at home and abroad in the pharmaceutical, military, food, scientific research, seawater desalination and other fields to play their own utility.

With the more mature RO membrane technology, it began to be used in the water purifier industry, today, can provide direct drinking water RO reverse osmosis water purifier has become the standard for many families, it changed the traditional way of drinking water in the past, not only protects the residents of the health of drinking water, but also greatly improves the quality of people's lives.

RO membrane maintenance

Generally speaking, the RO membrane cartridge will be in the fourth or fifth layer of filtration of the water purifier, and the service life is also longer than other cartridges.

A water purifier is basically composed of PP cotton, activated carbon, RO membrane cartridges, the first few levels of filtration of large particles of impurities, largely reducing the RO membrane filtration pressure, to extend the service life of RO.

However, users usually have to develop the habit of timely replacement of the cartridge, because the water purifier is used for a long time, there are likely to be impurities into the RO membrane, clogging the pores of the RO membrane, resulting in a shortened life expectancy, and even the case of no water.

It should be noted that, although the RO membrane cartridge purification strength is strong, but in the daily use of the need to replace and maintain, in general, the RO membrane service life of 24 months.

Don't look at its long life, daily maintenance can never forget.

RO membrane filtration aperture is small, impurities are easier to attach to the cartridge, so regular flushing cartridge is a very necessary thing.

Therefore, timely replacement of water purifier cartridges at all levels, not only to ensure the health of the water, but also to extend the service life of the RO membrane, from the overall savings of core costs.