Everyone knows that the water that flows from the tap in each house, has undergone preliminary chemical treatment. But the question, how much it is necessary and correct, is still open.
In the 1900s, chlorine compounds were first used to rid water of the harmful microorganisms living in it. Since then, little has changed. This method is used today everywhere.
Reference! It was the chlorination of water in 1908 that helped cope with the cholera epidemic in Russia.
To neutralize the activity of microbes and protozoa at sewage treatment plants, liquid chlorine or bleach is added to the water collected from natural water bodies. They are disastrous for all the "living creatures" there. In this case, it is believed that the standards of chlorine, adopted by GOST, are quite small and can not harm people So water is disinfected, gets normal color, smell and neutral taste.
City services add excess chlorine compounds to ensure that all pathogenic flora and fauna are rendered harmless. Usually the procedure is carried out at the rate of not less than 0.3 mg of residual chlorine per liter half an hour after the treatment. If the figure is less, then the water is considered poor quality. During periods of epidemics double chlorination can be carried out, then the concentration of compounds becomes even higher.
In some cities (Moscow, St. Petersburg), ozone treatment and ultraviolet treatment technologies have begun to be used to purify drinking water, and sodium hypochlorite is also used to replace chlorine. But all this is not as effective as chlorination itself. Therefore, these technologies are rather additional methods to improve the quality of water.
In the near future, it is unlikely that a rejection of the established procedure will occur, because:
- This is the most effective way to disinfect water from all known at the moment;
- there is no chlorine deficiency in the world, which makes it relatively cheap;
- long-term practice of use shows all its advantages.
All this suggests that today replacing the water treatment procedure with chlorine for something else is impossible and meaningless. One can only hope that in the near future, scientists will invent new ways to disinfect drinking water.
Unfortunately, despite all the arguments in favor of chlorine treatment, such water is still harmful and dangerous to humans. It's all about residual chlorine, which tends to accumulate in the body. In addition, when heated (for example, when boiling a kettle), an even more toxic substance is formed - chloroform.
Even if you try not to use untreated tap water, it still gets inside the human body through the skin. It has been proven that an hour spent in a warm chlorinated bath is about ten liters of water consumed. By the way, when you feel dry and tight skin after home hygiene procedures - this is the manifestation of a high concentration of chlorine in the water. It adversely affects the hair (makes it dry and brittle), irritates the nasopharyngeal mucosa and eyes.
As a result of years of research, scientists have concluded that there is a direct relationship between the use of chlorine water and the development of dangerous diseases. The detrimental effect of the accumulation in the body of this substance can be liver diseases, heart and kidney failure, cancer of the breast, intestines, and larynx. In addition, pregnant women are increasing the risk of miscarriage and the possibility of developing serious fetal abnormalities (for example, cleft lip or cleft palate).
The simplest procedure is upholding. Before you use the water for its intended purpose, you can collect it in a separate container and let it stand for about 24 hours. Then the upper half of this volume can be carefully poured into a kettle or pan for cooking, and the remainder must be drained - it contains all settled carcinogens.
The above method is not for everyone. To make the process faster, more convenient and easier, it is recommended to use an additional cleaning system. For example, carbon filters perfectly free water from all harmful substances. They can be used both as individual containers and as a static device right under the sink. The only condition for their use is frequent replacement (according to the instructions, approximately once every one or two months).
Important! Remember that after filtration, no preservative substances remain in the water, so literally in a day there will already be a lot of bacteria in it.
Now you know all about the benefits and dangers of chlorination and can make an independent conclusion about how important it is to take measures to neutralize residual compounds after chlorination.
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