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Posted By Martin Taylor
Hello everybody
I am hoping somebody can advise me on 2 matters associated paint spraying
Firstly - is there any guidance or research in the maximum continuous time that air fed BA should be required to be worn
Secondly - is there any guideance on the need to treat water in the spray booth (recirculated water back booth)with biocides and if so what are the issues with performance of biocides in this environment.
thanks
Martin Taylor
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Posted By Paul Leadbetter
Martin
Don't know about your first point but the water in your spray booth will be colonised by bacteria, slime moulds, etc if the water is not treated. At the very least, this could result in some unpleasant smells (as with untreated machine tool sumps). Anyone getting the untreated water into cuts and abrasions could be at risk of dermatitis.
Have you talked to the equipment supplier?
Paul
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Posted By Simone Plaut
hydrogen peroxide is a good choice biocide for preventing bacterial growth.
It also has the added benefit of improving air quality at the same time
dont have any references on this but ozone has plenty of refs in literature etc and this is efffectively the same thing.
(3 H202 >< 03 + H20)
cheers
Simone
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Posted By Martin Taylor
thanks Paul - we are experiencing smells but not significant (we are spraying solvent paints which have a distinctive smell also) and I take your point about infection and dermatitis from people cleaning the booths.
Should I be concerned about more serious effects such as legionella. I would argue that the risk of legionella is minimised as there is little risk of inhalation of aerosol spray - do you think this is reasonable?
I am concerned at the introduction of hazardous treatment chemicals without a health benefit
interested in other views
thanks MT
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Rank: Guest
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Posted By Paul Leadbetter
Martin
I agree; if there is plenty of draught, there should be no inhalation risk to the operators.
Paul
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