Re: Decon of old rusty material

[phf@cap.urenco.co.uk]

Mark

I would agree that any trial decontamination should be undertaken using either 
Respiratory Protective equipment or in some kind of glove box but the levels of 
contamination may only be low. We tend to use wet decontamination techniques using a 
dilute sulphuric acid to clean the metal followed by citric acid and hydrogen 
peroxide. This technique will clean the metal but there will be a progressive 
weakening of the peroxide. This is a tried and trusted method but as I was only 
involved with the Health Physics side I cannot remember the concentrations required. 
I assume that the only contaminant is Uranium. If you want more information my E-mail 
address is phf@cap.urenco.co.uk and I will try to help.


Best Wishes

Paul Fazey

Urenco Capenhurst

The above message has not been approved by my employers and is my opinion only.

______________________________ Reply Separator _________________________________
Subject: Decon of old rusty material
Author:  radsafe@romulus.ehs.uiuc.edu at INTERNET
Date:    10/18/96 2:48 PM


One of my sites in northwestern NY is 
contaminated with uranium.  I'm going up there 
week after next to try a test decon of metal 
machinery.  
     
My plan is to use a wire brush attached to a 
hand drill.   My plan is to use the brush with 
some soap and water.
     
I was wondering if any of the more experienced 
people out there had any "pearls of wisdom" 
with this method and could offer some advice. 
Also if someone has some better ideas please 
tell.
     
Mark Winslow
US EPA - Region II