Amount of recovery from Silver Recovery units

["Marlyn Aguilar" <maguilar@eha.health.state.hi.us>]

Hi Everyone,

Does anyone know how much silver is recovered from 
xray/photographic fixer when using a silver recovery units?  Some 
dentists that I have been working with want to compare numbers to 
see if using silver recovery would be economical for them or even 
make them some money.  Has anyone compared the different 
types of silver recovery units and their effectiveness?  For example, 
this type of unit with this amount of fixer would yield this much 
silver.  

Thanks in advance for any input!


Marlyn Aguilar
Hawaii Dept of Health
Waste Minimization Coordinator