Far away everyone knows that during their life a person drinks about seventy-five tons of water. At the same time with her, he “drinks”, as Louis Pasternak believed, about eighty percent of his illnesses. According to doctors, along with the water in the body penetrates a huge number of microbes, accelerating the aging process.
Reverse osmosis is one of the most famous ways to filter water. It allows you to remove even the smallest particles having the magnitude of the ion. In addition, the “reverse osmosis” filter today helps purify drinking water from salts and other inclusions. But that's not all: it improves the taste, color and even the properties of the liquid.
The process that is scientifically called “reverse osmosis” is hyperfiltration, during which water under high pressure flows through a special membrane that inhibits impurities. Today, many companies - manufacturers of cleaning systems - produce filters that work according to this principle.
Not all of us imagine that water that comes out of the tap in houses and apartments is, in essence, a solution. And it contains a certain amount of numerous elements - metals, salts, inorganic and organic compounds and much more.
The reverse osmosis system as a method for cleaning fluids has been known since the sixties of the last century. Initially, it was used to desalination of salt water on submarines, today, according to this principle, many hundreds of thousands of cubic meters of drinking water are produced in the world.
Improved technology has made it possible to use a reverse osmosis filter at home. At the moment, practically all countries of the world have already installed such numerous systems in apartments and houses.
Reverse osmosis filters solve not only the problem of water hardness, but also scale. No other cleaning technology, including those using ion exchange materials, is able to solve the mitigation task as effectively as these systems do. Therefore, if this problem is the priority, then there is simply no alternative to these filters.
As evidenced by the reviews, and this is confirmed scientifically, the water filtered in this way has a unique degree of purification. In its properties, it is as close as possible to thawed snow, which is obtained from ancient glaciers. And this, as is known, is the most ecologically clean and healthy water for humans.
Principle of operation
The phenomenon of "reverse osmosis" is basic in the process of metabolism of any living organisms. Due to this principle, many nutrients enter the living cell and slags are also removed. It is most clear to imagine what a reverse osmosis system is, by observing it using the example of two salt solutions having different concentrations and separated by a semipermeable membrane. The latter transmits ions of a certain size, at the same time being a barrier to large molecules. As a result, water ions are able to penetrate through reverse osmosis, the membrane of which, as it were, squeezes them, in turn, retaining the salts dissolved in them.
If there are solutions with different densities on different sides of this semi-permeable “partition”, then they will move from a weak to a more concentrated volume. At the same time, they will cause an increase in the level of the liquid in the latter.
Due to reverse osmosis, the process of penetration of molecules through the membrane will occur, even when both of these solutions will be under completely the same external pressure.
In this case, the difference in the height of the levels is proportional to the force under the influence of which water flows through the membrane and which is called “osmotic pressure”.
In order to buy the filter “reverse osmosis”, you need to know the necessary parameters. The characteristics that distinguish this device determine the performance of the membrane and the volume of its hydroaccumulator - storage tank. The amount of water that will be necessary to meet the needs of a particular user depends on the throughput characteristics of the filter.
As a rule, its production in these filters varies from one hundred and eighty to three hundred and eighty liters per day. For industrial options, this indicator can be determined by a figure one hundred times more.
On this basis, the choice is determined on the basis of the individual needs of the buyer. For example, for a family of four, a tank with a capacity of twelve liters is sufficient.
Those who are tired of purchased water in plastic bottles, causing sufficient damage to the family budget, it is best to think about water filters. After all, when buying reverse osmosis cleaners, the user will receive many benefits. First of all, at his house a harmless and very pleasant water will flow from the tap, and secondly, the taste of tea, coffee and even soups will change. In addition, his kettle will no longer "suffer" from scale.
And all because the “reverse osmosis” system, on the basis of which these household filters work, purifies water using a thin-film special membrane. It functions according to the principle borrowed from Mother Nature. Water from a water pipe passes through a semi-permeable membrane that rejects even the smallest particles of suspension - about a ten thousandth micron in size and allows only water and oxygen molecules to pass through, removing dirty components into the drainage.
According to the method of connection and type of functioning filters "reverse osmosis" is close to running varieties that are installed "under the sink". The installation of such a system is the connection to the water supply and sanitation. It can be quite easy to implement under the sink in the kitchen.
Plants have a “reverse osmosis”, in which after tanks and postfilters put the mineralizer, saturating the water with a complex of useful salts. When choosing you need to pay attention to the presence of the pump increases the inlet pressure. If the pressure in the water distribution system in terms less than three atmospheres, its existence on the device “reverse osmosis” actually.
In addition, due to the existence on the market of a large number of manufacturers and models, you should pay attention to the mounting methods as well as to the filter elements when buying. They need to be correlated with the placement capabilities, for example, on or under the sink. The dimensions of this device also play an important role.
Another relevant factor for choosing the “reverse osmosis” filter model is the number of steps in front of the membrane, as well as their comparison with the composition of the liquid coming from the plumbing system.