Methods Used for Legionella Remediation in Commercial Buildings
Legionella can grow in various water systems such as cooling towers, hot water tanks, and large plumbing systems. This is due to these systems being warm and stagnant areas that are under constant exposure to water.
If Legionella is found in a commercial building’s water system, it is important to take steps to remediate the problem. The following are some of the methods that can be used for Legionella remediation:
- Chemical treatment: This is the most common method of Legionella remediation. A chemical disinfectant, such as chlorine or ozone, is added to the water system to kill the bacteria.
- Physical treatment: This method uses physical means to remove or kill the bacteria. For example, the water system can be flushed with hot water or steam, or the bacteria can be removed by filtration.
- Biological treatment: This method uses bacteria or other organisms to compete with Legionella for food and space.
- Combination treatment: This method uses a combination of chemical, physical, and biological treatments.
The best method of Legionella remediation will vary depending on the specific circumstances. The type of water system, the level of contamination, and the budget are all factors that will need to be considered.
In addition to remediation, it is important to take steps to prevent Legionella growth in the future. These steps include:
- Keeping hot water temperatures above 120 degrees Fahrenheit.
- Draining hot water tanks and pipes regularly.
- Cleaning and disinfecting cooling towers and other water systems on a regular basis.
- Installing a point-of-use filter on faucets that are used for drinking or cooking.
By taking these steps, you can help to protect your employees and customers from Legionnaires’ disease.
Here are some additional items to keep in mind about Legionella remediation:
- The remediation process should be carried out by a qualified professional.
- The water system should be tested after remediation to ensure that the Legionella has been eliminated.
- The water system should be monitored on a regular basis to prevent future outbreaks.
By following these guidelines, you can help to ensure that your commercial building’s water system is safe and healthy.