The incubation period of the disease is 2-3 days. Infection with Legionella is particularly dangerous for people with lowered immunity and if in time not to begin treatment, the probability of death increases to 39 percent.
Upon detection of the above symptom should seek immediate medical attention.
Lives where Legionellosis?
Most often the source of infection is water that contains the bacteria of the genus Legionella. Infection occurs through particles of water or steam that are formed during passage of water through the faucet in the shower, in the equipment of saunas and baths, in systems of cold and hot water. There is a risk of infection and in production processes, using humidifiers, cooling systems and cooling towers. Also the risk of infection can represent such everyday things as air conditioners, humidifiers and even fountains in the parks.
Although legionellosis and is spread by airborne droplets from person to person it is not passed.
Bacteria of the genus Legionella actively proliferate at temperatures from 20 to 66 degrees Celsius, in the biofilm formed on the surfaces of pipelines, showers, tanks, heaters, as well as in a variety of applications with minor water exchange. At temperatures above 66 degrees Celsius — the bacteria die within two minutes.
How to avoid and how to fight it?
It is necessary to ensure the conditions under which the bacteria can not reproduce. You must ensure that the cold water temperature did not exceed 20 s, and hot was below 66 P.
Before you take a shower or brush your teeth, it is recommended to drain for two minutes. Also it is recommended to regularly clean and treat chemical means of mesh filters, faucets, shower heads, to avoid organic deposits. Special attention should be paid to areas where water is rarely used.
Regardless, private, public, or industrial building, in all cases, the bacteria can get into your system from the outside together with water and immediately begin to multiply in organic sediments. This situation can occur in two cases: incoming cold and hot insufficiently cleaned or it was done incorrectly.
There are many ways to clean infected water and destroy organic deposits. The right - in accordance with local legislation and in consultation with experts, to plan the cleaning and maintenance in order to reduce the risks of Legionella.
What cleaning method to use?
Choosing the cleaning method, it is necessary to take into account the basic functions of the building:
Medical institution, residential building, hotel, pool, industrial building, and a condition of engineering systems and other criteria. For different types of buildings need different types of treatment: public (non-residential) and industrial buildings, you can choose heat treatment, and cooling towers to more appropriate chemical.
There is also microfiltration. This is the most expensive and the most efficient method among all methods of cleaning.
GRUNDFOS – chemical water purification systems.
It should be noted that chlorine itself is used in systems of centralized water supply, but unfortunately, he is not capable of fighting with organic deposits. This GRUNDFOS has in practice proven and effective system for the chemical cleaning Oxiperm Pro, which gaseous chlorine dioxide how effectively destroys pathogens (Legionella and others) and the biofilm environment of reproduction.. it is generally Accepted that if the total concentration of chlorine and chlorine dioxide at the outlet of the faucet reaches 0.2 to 0.3 ppm organic deposits are not formed. The larger the building, the longer the cleaning process.
Oxiperm Pro installation does not require the termination of operation of the building. With correct work, people will not feel that the process of disinfection. Ideally, the plant should work continuously, it is necessary to carry out continuous prevention, which will ensure the purity of the water supply system. At the moment, the practice shows that the purification of the water supply system the problem of building comes in the form of one-time campaigns.
The setting has a certain degree of risk potentially, in this regard, it is important to determine the capacity of the plant, to properly mount adhering to the manufacturer's requirements and legislation. GRUNDFOS specialists recommend: make sure that the people or companies that carry out work in your water system has been properly trained and certified.
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