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Solution To 'Legionella'

Date:
September 17, 2005
Source:
Elhuyar Fundazioa
Summary:
As a result of the joint working between teams of experts from the Iberia Ashland Chemical, S.A. company and the INASMET-Tecnalia Technological Centre, a solution has been found to prevent the serious disease caused by the bacteria known as "legionella" and other similar disorders.

As a result of the joint working between teams of experts from the Iberia Ashland Chemical, S.A. company and the INASMET-Tecnalia Technological Centre, a solution has been found to prevent the serious disease caused by the bacteria known as “Legionella” and other similar disorders.

This achievement has meant a great advance for human health. It is based on the biocidal and bacteriostatic effect of the SONOXIDE® system, used in refrigeration towers of factory buildings and installations that are prone to be the focus for the proliferation of Legionnaires' disease.

In order to validate the system, the team of INASMET-Tecnalia experts designed a refrigeration tower simulation within a biologically-isolated laboratory (P2 level). A wide range of trials were carried out in this isolated and secure system in order to determine the efficacy thereof.

Regarding the technology developed, it consists of a system based on low-intensity, high-frequency ultrasounds which, together with the introduction of micro-bubbles of air, produce an effect of photo-sonoluminiscence. The concentration of ultrasounds by constructive interference generates a pressure front that produces a decompression of the gases dissolved in the water. This wave front produces a luminous plasma around the bubbles, as well as high pressure and temperatures.

These pressures and temperatures have two effects: on the one hand, they eliminate the circulating bacteria and, on the other, they generate an oxidative stress that is transmitted throughout the water refrigeration system. This stress, together with the continuous loss of circulating bacteria throughout the system, reduces the formation of biofilm even at extremely low levels – and maintains this to such an extent that the fixing of “legionella” bacteria or any other micro-organisms needing biofilm in order to grow in the system, is impeded.


Story Source:

The above story is based on materials provided by Elhuyar Fundazioa. Note: Materials may be edited for content and length.


Cite This Page:

Elhuyar Fundazioa. "Solution To 'Legionella'." ScienceDaily. ScienceDaily, 17 September 2005. <www.sciencedaily.com/releases/2005/09/050917085551.htm>.
Elhuyar Fundazioa. (2005, September 17). Solution To 'Legionella'. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2005/09/050917085551.htm
Elhuyar Fundazioa. "Solution To 'Legionella'." ScienceDaily. www.sciencedaily.com/releases/2005/09/050917085551.htm (accessed April 24, 2014).

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