Why do we need clean water? The body needs water – it is no substitute. Water – the most necessary for the body nutrient. It not only dissolves all the minerals, proteins, starch and other soluble components in it, and then scatters them throughout the body in the blood, but also generates energy. Why do I need chlorine? The mechanism of action of chlorine disinfection studied well enough. It is the oxidation of organic matter bacterial cells, coagulation, and damage to its hull, inhibition and denaturation of enzymes, which leads to the death of the bacteria. Today the main use two methods of chlorination: prehlorirovanie and posthlorirovanie. Goal prehlorirovaniya – pre-treatment before the water treatment facilities to improve or facilitate its further purification.
Prehlorirovanie in case of deterioration of water quality on bacteriological, unpleasant odors flavors should be higher doses. Free active chlorine in most cases provides a significant improvement in water quality due to active oxidation of organic substances. The method of pre-chlorination posleperelomnymi doses commonly used in water treatment practice (Kiev, Nikolaev, Vinnitsa, Dnepropetrovsk, etc.). Posthlorirovanie used for water disinfection which is the final stage of water purification. Posthlorirovanie carried out in small doses, ensuring the presence of residual chlorine after the clean water reservoirs at the level of the requirements of GOST. Without any disinfection in city water is necessary. Spring floods are in the mud ponds that had accumulated in the snow, the solutions of fertilizers, herbicides. In the autumn the same thing happens because of rain: salvo emissions from factories, oil spill and its derivatives, accidental discharges of sewage water is converted into solutions of chemicals regardless of the season.