Reverse osmosis

Today every second person living in an ordinary city apartment uses water purification systems that flow from the tap, because it contains many harmful impurities. Reverse osmosis will allow to solve such a problem quickly enough, but whether it is necessary to do, whether personal expenses of time, money and forces for water purification are really necessary. We will deal with this issue in this article, as with what is reverse osmosis and how effective it is.

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Do I need to filter the water from the tap?

The opinion about the big contamination of tap water is rather controversial, as recently all people drank it and did not think about any negative consequences. In large cities, the quality of water is strictly controlled, therefore, in principle, it is not necessary to purify it.

Manufacturers of such cleaners are able to find an approach to ordinary people and to convince that our water can not really just drink so. Therefore, products for filtration - jugs, coolers, have become so popular nowadays. But in fact, no special devices do not need to clean the water coming into the apartment from an old rusty water pipe, you just need to install a mechanical filter in the apartment or several filters that work in turn.

The ideal technology for water purification is reverse osmosis. Let's get to know him better, to see if he is needed in every apartment.

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What is reverse osmosis?

This filter works on the basis of the application of a reverse osmosis membrane, capable of purifying water from all kinds of impurities that exist today. In fact, similar technology was used by the ancient Greeks - they let the sea water through the walls of a vessel made of wax, and it became fresh.

In the sixties, already started using industrial plants that helped turn seawater into fresh water. Due to the fact that the reverse osmosis filter has been maximally improved, it has been used not only in industrial conditions, but also in residential buildings.

Important! As a result of such cleaning, the water becomes crystal clear and safe, in its properties it is very similar to the thawed water of ancient glaciers.

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Truth and myths about reverse osmosis

According to experts and ordinary people, water purified with this technology is ideal for daily use. On this topic, scientists have been arguing for more than one year. And even today there are a lot of erroneous opinions and myths, as well as misconceptions about reverse osmosis.

Consider the myths that have no confirmation to once and for all dispel the false notions about it:

The first myth

Reverse osmosis purifies water from healthy mineral compounds. No self-respecting company and its customers will claim this, because this filter actually kills only:

• viruses and bacteria;
• radionuclides;
• heavy metals;
• inorganic and organic compounds and also suspended matter.

Important! Yes, it removes minerals, but only related to inorganic pollutants.

Myth of the second

The water that has been cleaned, gets rid of minerals that are important for life. This is a huge error, because it actually remains after purification with its own properties inherent in it.

Water works like a magnet: collects discarded, rejected and unnecessary mineral substances and, through lymph and blood, delivers them to the kidneys and easy for subsequent excretion.

The third myth

The reverse osmosis system negatively affects the condition of the teeth. And this is also a mistake, because on the contrary - people who constantly use purified water, are less likely to encounter problems related to teeth.

The Myth of the Fourth

Many believe that the water purified in this way loses its flavor. In fact, the taste is the main reason for buying bottled water. Most consumers are convinced that it is the minerals that make the water taste. But in reality it becomes so because of the presence of oxygen. Normal water should not have a metallic aftertaste.

Important! The water obtained after cleaning with such a filter is ideal for drinking and cooking, and is the cleanest and safest.

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More about the reverse osmosis membrane

The membrane installed in the filter is a composite polymer that can be characterized by an uneven density, consisting of two layers connected inextricably with each other. The first layer acts as a barrier.

The membrane is a kind of filter that meets all the requirements, and due to this, water passing through it gets rid of unnecessary mineral impurities. Osmosis for water purification in the course of work is slowly becoming dirty and this negatively affects the functioning of the plant itself. To restore its properties and specified performance characteristics, it is necessary to thoroughly clean the machine, by backwashing with a stream of water or by blowing with compressed air.

Important! To extend the life of your filter, it is recommended to add chemical reagents to the waste water, which help to fight the formation of sediment. Most often such inhibitors are either an inhibitor or sulfuric acid.

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Design of reverse osmosis systems

These units are arranged differently, because everything depends on the water that is being cleaned and the conditions under which the process is carried out. But nevertheless, there is a standard equipment that assumes the availability of such functional elements:

• Pre-filter - it helps to prepare water for the main process and involves the removal of solid particles with a size of no more than 5 microns.
• Filtration unit - designed for installation of membranes involved in the process of water purification.
• Pump that creates the necessary fluctuations in pressure, thereby providing a return flow of water.
• Tying the filtration unit - for its safe operation.
• Instrumentation and control instruments - for automatic control of the unit.
• Washing unit - designed for cleaning the membrane surface to improve the quality of the installation.

Important! You can also install additional cartridges that will perform some more useful functions, which will make the reverse osmosis system work more efficiently:

• Ionizer - helps saturate the water with positive ions and eliminate negative ones. The resulting water is much more easily absorbed by the body and normalizes the pH level, and also excretes toxins well.
• Mineralizer - due to it in the process of water purification it is saturated with salts and minerals that support saline solution in the body.
• Water softener cartridge - removes heavy metal salts, which promote the formation of scale on the elements of washing machines, dishwashers, as well as on the dishes.
• Bioceramic cartridge - restores the structure of water that it has by nature.

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Water purification steps through the installation of the reverse osmosis system

The standard water purification scheme with this unit is five-step and consists of several stages, observing the sequence of which in the end we get clean and useful water.

Important! Reverse osmosis involves the passage of water after mechanical cleaning through a special membrane containing a lot of microscopic holes. They detain the dirt, which is washed off into the sewer by a stream of water.

The very first and mandatory stage of water purification is preliminary mechanical treatment, which involves the passage of water through a whole system of cartridges:

1. Filter for deep cleaning. It is capable of retaining the largest mechanical particles( rust and sand).
2. Coal block. It purifies water of phenols, heavy metals, oil products and chlorine.
3. Fine cleaning cartridge. At this stage, additional water purification is carried out, namely the removal of the tiniest particles.
4. In the next step, water passes through the reverse osmosis membrane.
5. After filtration of water through the membrane, it accumulates in a sealed container made of plastic or metal, divided into two parts by a rubber membrane. At the same time, on the one hand, air is pumped into the tank, and on the other side water is poured.
6. The fifth stage of cleaning is a carbon filter. Water under pressure is pushed out of the tap and undergoes final cleaning.

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How to choose the ideal filter for yourself?

The reverse osmosis filter should be selected based on the following criteria:

• Determine what kind of water you need. It is necessary to take this decision in order to determine the number of required number of modules.
• Specify, under what pressure water comes to you through water pipes. This is important, because through the membrane, filtration can only occur under a pressure of at least three milliamperes. Otherwise - you will have to buy an additional mounted or built-in pump.
• Decide whether you need a mineralizer and ultraviolet emitter.
• Determine when selecting a filter, whether it should have an infrared module that makes water more useful.
• The choice of a membrane deserves special attention, and it is better if it has a special coating protecting it from accumulation of dirt. Such membranes serve much longer.

Important! In addition to all the above points, you also need to take into account the amount of filtered water that your family consumes in a month to choose the unit of the desired volume.

All the defective filter elements must be changed immediately, because this will depend on the quality of water consumed and your health.

Now you have a complete idea of ​​what reverse osmosis is, how it works and functions, how useful it is in life, and whether its installation is reasonable. We hope you made the right decision and secured yourself against the questionable quality of water once and for all in such an easy way, without the regular purchase of various water purification devices or expensive bottles of "mineral water."