Legionella is a type of bacteria that can cause Legionnaires’ disease, a serious lung infection. Legionella is found naturally in water, but it can grow and multiply in warm, stagnant water, such as in hot water systems, cooling towers, and humidifiers.
Water treatment Legionella disinfection is the process of using chemicals or other methods to kill Legionella bacteria in water systems. This is important to prevent the spread of Legionnaires’ disease.
Chemical disinfection is the most common method of Legionella disinfection. Chlorine, chlorine dioxide, and ozone are all effective at killing Legionella bacteria.
Chlorine is the most widely used disinfectant for water treatment. It is relatively inexpensive and easy to use. Chlorine can be added to water in the form of sodium hypochlorite (bleach) or calcium hypochlorite.
Chlorine dioxide is a more powerful disinfectant than chlorine, but it is also more expensive. Chlorine dioxide is often used in large buildings and industrial facilities where the risk of Legionella infection is high.
Ozone is a gas that can be dissolved in water to create a powerful disinfectant. Ozone is effective at killing Legionella bacteria, but it can also be corrosive to water pipes and equipment. Ozone is often used in combination with other disinfectants, such as chlorine.
In addition to chemical disinfection, there are a number of other methods that can be used to control Legionella growth in water systems. These methods include:
Many buildings and facilities have water treatment Legionella disinfection programs in place to help prevent the spread of Legionnaires’ disease. These programs typically include a combination of the following measures:
By following these tips, you can help to protect your employees and visitors from the risk of Legionnaires’ disease.
Water treatment Legionella disinfection is an important part of preventing the spread of Legionnaires’ disease. By using a combination of chemical disinfection, physical cleaning, temperature control, and other methods, building owners and operators can help to keep their water systems free of Legionella bacteria.