Why do more and more people like to use reverse osmosis water filtration systems? The reason is that the advantages of reverse osmosis water have become a popular choice for people. Reverse osmosis membrane is a highly efficient water treatment technology with a very good filtration effect. Therefore, we will provide you with what reverse osmosis water filtration is, its working principle, and its advantages analysis. Please continue reading.
What is reverse osmosis water filtration?
Reverse osmosis is a membrane separation operation that uses pressure as a driving force to separate solvents from solutions. Pressure can be applied to the liquid on one side of the membrane. When the pressure exceeds the osmotic pressure, the solvent will reversely penetrate in the opposite direction of natural penetration. Thus, the permeated solvent, i.e., the permeate, is obtained on the low-pressure side of the membrane; the concentrated solution, i.e., the concentrate, is obtained on the high-pressure side.
Related Reading: What is a reverse osmosis water filtration system?
Is reverse osmosis water good for you?
Many people wonder if reverse osmosis water is good for health. Reverse osmosis water filtration systems are state-of-the-art water treatment systems that remove 99.9% of all contaminants and sediments, or particles as small as 0.001 microns, so it is safe to drink reverse osmosis water.
However, some reverse osmosis water filtration systems may filter out minerals during the filtration process. Relatively speaking, the minerals filtered out are negligible. You can also make up for it by consuming food elsewhere or using a reverse osmosis system that can replenish minerals, such as using ITEHIL reverse osmosis water filtration systems, to easily and quickly get healthy and safe drinking water.
Working principle of reverse osmosis water filtration
Reverse osmosis water filtration technology is one of the most widely used water treatment technologies. It can effectively remove impurities, organic matter, inorganic salts, and other components in water to obtain high-purity water. The core component of reverse osmosis water filtration technology is the reverse osmosis membrane, and the reverse osmosis membrane needs to be protected and maintained by a reverse osmosis water filter during use.
Reverse osmosis water filters are usually composed of filter housings, filter elements, water inlets, water outlets, etc. The filter element is an important component. The filter elements used in reverse osmosis water filters are usually the pre-filter element and post-filter element of the reverse osmosis membrane. The pre-filter element is usually a coarse filter, which can remove large particles of impurities and suspended matter in the water, effectively protecting the reverse osmosis membrane from damage. The post-filter element is usually a fine filter, which can remove tiny particles, colloids, bacteria, etc. in the water, thereby ensuring the purity of the outlet water.
Related Reading: How Does Reverse Osmosis Water Filter Work?
What are the advantages of reverse osmosis?
A wide range of impurities can be filtered out
The use of reverse osmosis membranes can effectively filter out all impurities in the water with high filtration accuracy. Whether it is large particles or small impurities, it can be effectively filtered. In addition to filtering out organic floating objects, it can also filter out various mutant bacteria and bleaching powder or pesticide residues, metal dirt, etc., including large particles of mud and sediment that can also be easily removed and filtered out.
Can make drinking water healthier and purer
The various substances contained in the water are mostly invisible to the naked eye. Long-term use of various impure water will cause pollutants to accumulate in the body, causing certain damage to the body or causing diseases. Therefore, the use of reverse osmosis membranes can effectively help remove various impurities in the water, making the water quality purer and meeting the use standards, which is more beneficial to human health.
Let users save water costs
The use of reverse osmosis membranes can make it more convenient for users to drink water, and not always needing to order bottled water can save more cost resources, and the water output can be cleaner and safer than bottled water. Therefore, the use of reverse osmosis membranes can not only make water use safer but also save a lot of capital costs for purchasing bottled water.
Advantages of reverse osmosis membrane
Reverse osmosis technology is the most advanced and cutting-edge technology in water purification since the development of society, and it also has advantages that other treatment methods cannot achieve. The pore size requirements, material requirements, processing requirements, component requirements, and use requirements of reverse osmosis membranes are quite strict.
Advantage 1. Small membrane pores.
Reverse osmosis is a membrane separation technology developed in the 1960s. The pore size of reverse osmosis membranes is mostly less than or equal to 10x10-10m.
Advantage 2. Thin thickness and high-pressure resistance.
The thickness of the reverse osmosis membrane is thinner than that of ordinary paper, and at the same time, it can withstand pressures of up to several or more than ten MPa.
Advantage 3: Composition of reverse osmosis membrane
Membrane coating. The polymer slurry prepared in a certain proportion is evenly applied to the membrane substrate with a high-precision scraping machine. Under a constant temperature, constant humidity, and high cleanliness environment, the solvent in the slurry is vaporized to form a uniform and flawless membrane pore. The thickness of the membrane coating after forming is generally 0.02-0.08um (2-8*10-5mm).
Porous support layer. Since the membrane surface layer is ultra-thin and its mechanical strength is extremely poor, the membrane surface layer is compounded on a porous material with strong compressive resistance for support.
Fabric reinforcement layer. It plays a protective and reinforcing supporting role, is the basic material of the membrane, and is made of special non-woven fabric material.
Advantage 4: Composition of membrane element
The membrane element must also go through the process of film rolling to make the reverse osmosis membrane into a usable membrane element.
The membrane element is composed of 12 layers of double-sided reverse osmosis membrane with a pure water guide net in the middle, plus 12 layers of concentrated water guide net, which are flatly wrapped around a hard central tube with 2 rows of small holes in the middle. Each membrane is 1.2 meters long.
Frequently Asked Questions
Is drinking reverse osmosis water good for health?
Long-term drinking of water from RO reverse osmosis water purifiers is not beneficial or harmful to the human body. RO water purifiers can effectively remove impurities, odors, colors, and most bacteria, viruses, and other harmful substances in water through RO reverse osmosis membrane filtration to improve water quality.
RO water purifiers may remove some trace elements in water, such as magnesium and calcium, but the main source of these trace elements for the human body is fruits and meat, not drinking water, and these trace elements can be supplemented through food.
Secondly, the more alkaline substances in the water, the more alkaline it is. Drinking overly alkaline water will cause the pH value of the human body to be unbalanced, destroy the balance of intestinal flora, and cause gastrointestinal discomfort and other problems. But in most cases, the pH value of water filtered by RO water purifiers is neutral, which generally does not cause a major impact on the human body.
Which is better, reverse osmosis water or alkaline water?
Reverse osmosis water and alkaline water each have their advantages, depending on personal needs and health conditions.
Reverse osmosis water can remove most harmful substances and obtain clean, pure drinking water. Alkaline water is a type of drinking water with an alkaline pH value, which is said to neutralize acidity in the body and has antioxidant, metabolism-promoting, and digestion-improving effects.
Alkaline water is the drinking water chosen by some people in specific circumstances, such as when the body is prone to high acidity and wants to improve digestion and absorption.
Should we drink RO water or tap water?
In every 1000 ml of tap water, the content of zinc and iron is less than 0.2 mg, while the daily zinc supplement required by adults is 10-15 mg and iron is 12-18 mg. Therefore, the trace elements ingested through tap water are relatively insignificant, however, the higher concentration of calcium and magnesium in tap water still has certain benefits for the human body.
In contrast, real purified water undergoes multiple layers of filtration, which usually removes impurities, trace elements, inorganic salts, and possible pathogenic bacteria in the water. Therefore, it is safe, non-toxic, and pollution-free, and is beneficial to the human body. Therefore, if economic conditions permit, buying real purified water is a good choice.
