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Water disinfection and purification have developed a lot in the last century. This has led to a decrease in diseases that came from water. Most pathogen microorganisms are eliminated by water treatment techniques such as coagulation, flocculation, decantation or filtration. Although, in order to have a healthy drinking water, it is also necessary to disinfect it.

There are several disinfectants that kill or eliminate pathogenic microorganisms. The most common methods used for water disinfection are: chlorine, peroxide, bromine, silver, ozone, ultraviolet. Each disinfectant has advantages or disadvantages, and it can be used to disinfect water depending on certain conditions.

The need for water disinfection

Most microorganisms are removed from water during its purification treatment. However, in order to ensure the safety of water that is not harmful to health, it must be disinfected.

Microorganisms are found everywhere in nature. The human body comes in contact with them, and we live with them whole life. Most microorganisms are harmless, and they even contribute to certain vital processes in the human body, such as metabolism.

But there are also microorganisms which are harmful. Pathogenic microorganisms from water have certain properties that distinguish them from chemical pollutants. They are living organisms, they are not dissolved in water, but they coagulate and attach to colloids and solids in water. Pathogenic microorganisms from water can be divided into three categories: bacteria, viruses and protozoan parasites.

Chlorine gas

Molecular formula: CI2 CAS NO.: 7782-50-5 General description: Chlorine is a yellowish-green gas with a specific, irritating and suffocating odour. It liquefies easily under pressure, even at ambient temperature. The product liquefies easily under pressure, even at normal temperatures. Chlorine is heavier than air, and it accumulates in the lower parts. The product dissolves easily […]
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Sodium hypochlorite 12.5% - 20 litres / 1000 litres

Sodium hypochlorite (NaOCI) is a salt of sodium resulting from its reaction with hypochlorous acid (HCIO). The salt is in the form of a white powder, which is obtained by combining chlorine with sodium by introducing chlorine (CI) in gaseous form into a solution of sodium hydroxide (NaOH). Use: bleaching agent in the textile industry, […]
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