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Legionella & Radiation
Dear RADsavers,
A collegue involved in industrial radiation safety aske me to post the
following on RADsafe. You may send your replies directly to him.
QUOTE
At the company Corus Staal in IJmuiden Holland, a company which produces
about 6.5 million tons of steel, there are kilometers of cooling-water tubes
in which are, unfortunately sometimes some colonies of legionella-bacteria.
To diminish or even better to get rid of those bacteria in these
cooling-water tubes, irradiation with ultraviolet non-ionising radiation
and/or addition of chlorine in the systems did not have the desired result.
As local radiation engineer I wonder or investigations are being done or
publications or being made to get rid of these bacteria by using a
radioactive source (e.g. Co-60) against the outerwall of the tube(s). At
this moment I am just interested in the technical (im)possibilities of this
method and for the time being not in for example justification, legislation
and social acceptation.
Thank you beforehand for your reactions.
Kind Regards,
Jaap Th. van Nes (e-mail address: jaap.van-nes@corusgroup.com)
UNQUOTE
Gert Jonkers
Nuclear Measurement Techniques / Ionising Radiation Safety Expert (CHP) /
NORM HSE Expert
Shell International Chemicals B.V.
P.O. Box 38000, 1030 BN AMSTERDAM, The Netherlands
Tel: +31 (0)20 630 34 24 Fax: 29 11
Email: Gert.G.Jonkers@opc.shell.com
Internet: Http://www.shell.com/tis-en/
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