On Mar 11, 2009, at 22:42 , William Robb wrote:
The silver recovery cartridges that photo labs use for recovery are essentially a 5 gallon pail packed with steel wool. They aren't quite that simple, and I believe the steel wool isn't quite the same as what comes in a Bulldog package.
Doesn't the steel have to have a current applied to it to attract the silver deposits? When I was working in a lab that used a lot of fixer, we had rotating stainless steel drums in wooden tubs with a voltage applied. Don't know the details, but we shipped over 350 pounds of silver a month that we had to break off the drums with hard rubber no- bouce hammers.
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