Back to results
US 7,252,801 B2Granted
Method for controlling legionella in cooling towers
OwnerJohn Innes Coffeyinventor
Life of this patent
Estimating the term…
Abstract
A method of controlling Legionella bacteria in cooling water systems is described. The method involves the heating of recirculating cooling water to temperatures of 70° C. for sufficient time to kill the bacteria. The method functions best in combination with chemical bactericides.
Claims13
A method of controlling legionella in an operating cooling water system for a fluid conditioning plant comprising the steps of:
- recirculating cooling water in the system through a bypass heating system, and
- heating the recirculating water in the bypass heating system to an elevated temperature of at least 60° C. for a predetermined period of time,
- wherein the water in the bypass heating system comprises less than 5% of the water in the cooling water system.
Dependencies are inferred from the claim text.