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printech, January, 2001
RE: CRC canisters for low flow


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From:Steven Noble (Snoble@pmai.org)
Date:Tue, 16 Jan 2001 16:05:51 -0500


Sherry- >From my understanding it is a very low-tech form of electrolytic silver recovery technology. It operates on the same principle as any other electrolytic system but simply is the "cathode/anode" part of an electrolytic system, there is no container for the fixer to flow through. You place the system in a fixer bath (according to the brochure that we have seen) and plug it in and it "plates out" the silver. In theory it should work. Keep in mind that gains in silver recovery efficiency have come through either having the silver-rich solution circulate around the cathode or having the cathode rotate (spin) in the solution. Also, remember that avoiding sulfide build up (done only through properly adjusting the electrical current in the system) on your "silver plate" is a key to keeping an electrolytic recovery system running efficiently. I do not think that this system has the capabilities to adjust the current in the system. It is more of a "plug in and go" type system. The extremely low cost should be a point of question since most electrolytic systems cost many, many times more. I have no experience with the Silver Magnet but have run across them at CMP workshops in KS and OK. I would imagine that it has applications since it operates on known technology but I do not think it will get a facility into compliance with discharge limitation in most cities.



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