Applications
Water present in the aero-refrigerant towers form a favourable environment for the development of micro-organisms (bacteria, algae and fungus).
In fact, all the necessary factors for rapid development of micro-organisms are pre-sent (at different degrees) :
– Natural light,
– Oxygen (mixing),
– Nutrients (air-scrubbers), – Water temperature
(often between 20°C and 30°C),
– Etc …
The extremely rapid proliferation of living organic matter results in the appearance of sludge, deposit which disturbs the good working order of the installations (motor overheating, decreasing of thermal performance).
Moreover the presence of micro-organisms is often responsible for localised corrosion under deposit (production by their metabolism of corrosive products., …).
Among bacteria, the most virulent and the most supervised is the legionella pneumophila.
In fact, the inhalation of micro-droplets of water contaminated by this bacteria can cause legionellose to mankind.
The decree of 14 December 2013 (relating to cooling installations by water dispersion in an air-flow subject to authorization or declaration under the heading no 2921 ) has for objective to limit the risk of legionellose at the source by making sure that at each installation the concentration in legionellose in the water circuit remains inferior to 1000 UFC/L.
It has been demonstrated that biofilm provides good protection for bacteria against any form of aggression, and excessive injections of biocide have not always yielded good results.
To effectively combat Legionella pneumophila, the treatment must be directed towards the TOTAL elimination of the biofilm while minimizing the injection of biocide. To achieve this objective, we recommend the use of our solution.