Roman Black wrote:
>
> John Waters wrote:
> >
> > I think Alan's solution of re-cycling waste is the most environmental
> > friendly. It may even be a good product idea - a small self-contained tank
> > with all necessary electrodes and circuits, you use it for PCB copper
> > etching, when finished the job, press on a button and it will automatically
> > perform electrolysis to recover the etched copper. You can use it for a long
> > time without even adding new Ferric Chloride. I think many Hobbyist or
> > experimenter will buy if it is commercially available.   :-)
> >
> > John
>
> Does this really work? How well? Any dangerous
> gasses released? Could be a brilliant idea, I have
> gone through LOTs of ferric chloride in the
> last 25 years. :o)
> -Roman

Brainwave! How about using electrolysis to ETCH
the boards in the first place? Treat the board as
one electrode and remove the copper that way.
Umm, ok so as it gets near the end of the process
parts of the board would disconnect. But you could
remove the bulk of the copper? And all copper removed
would be deposited on your other electrode ready for
sale as scrap metal. No environmental problems.
-Roman

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