Now more and more families begin to pay attention to the quality of water, and water purifiers are more and more popular, and various drinking water equipment has entered thousands of households. Among them, ro reverse osmosis water purifier is favored by everyone because it can deeply improve the water quality and conduct deep treatment of water quality, so as to make the water quality healthier and ensure the water quality.
What is the principle of ro membrane reverse osmosis water purifier? What are the advantages and disadvantages? What are the recommended water purifier styles? Next, I will give you a detailed explanation one by one.
1、 Principle of ro membrane reverse osmosis water purifier
The principle of ro reverse osmosis water purifier is simply to let water molecules pass through the RO membrane (eliminate substances harmful to human body in water) by pressurizing. Because the filtration precision of RO membrane is extremely high, it can achieve the purpose of purifying water quality. There are two key steps, one is pressurized reverse osmosis, the other is RO membrane filtration. If you understand these two concepts, you can basically understand them.
(1) Pressurized reverse osmosis:
When the water purifier is working, the water containing impurities will enter the RO membrane part of the white cylinder in the middle from the gray blue part on the right side of the figure.
RO reverse osmosis water belongs to low concentration solution, while incoming water belongs to high concentration solution. Generally speaking, the flow mode of water is from low concentration to high concentration. However, if a pressure greater than the osmotic pressure is applied to the concentrated solution, that is, the water inlet side, the direction of penetration will be opposite, starting from high concentration to low concentration, and then purified water can be obtained. This process is called reverse osmosis.
(2) RO membrane filtration:
It is like a sieve, which can sieve out all impurities except water. Since the filtration accuracy of RO membrane can reach 0.0001 μ m, which is one millionth of that of hair, and the common bacterial virus is 5000 times of that of the RO membrane. Therefore, all kinds of viruses, bacteria, heavy metals, solid soluble substances, contaminated organic substances, calcium and magnesium ions, etc. cannot pass through at all. Therefore, the water flowing out of RO reverse osmosis water purifier can be directly drunk.
2、 Advantages and disadvantages of ro membrane reverse osmosis water purifier
Although the purified water of ro membrane is very clean at present, it also has some shortcomings.
Advantages: The reverse osmosis water purifier can remove impurities, rust, colloids, bacteria, viruses, etc., as well as radioactive particles, organics, fluorescent substances, pesticides that are harmful to human health. It can also remove unwanted hydroalkali and heavy metals, so as to ensure that there is no hydroalkali when boiling water and ensure the health of family members.
Compared with other types of water purifiers, RO reverse osmosis water purifier has the most powerful filtering function and the best filtering effect.
Disadvantages: Since the reverse osmosis water purifier needs to pass through a five layer filtering system, the reverse osmosis membrane needs to be replaced regularly according to the water quality, which is generally 1-2 years old. The first three filter materials of the reverse osmosis membrane need to be replaced frequently, which is generally 3-6 months.
The filter element of the water purifier is the most expensive part. If the filter element of the water purifier is replaced frequently, the consumption of the filter element will increase accordingly, and special personnel will be required to install it. The cost spent on the filter element in those two years may be more expensive than the price of the water purifier itself.
Post time: Oct-10-2022