If spent pickle is loaded with copper ions (?). Would it not be
possible to renew the mix by removing the copper through plating a
piece of sacrificial copper? If I soaked a piece of copper wrapped in
steel wire would that renew the pickle?
I work with copper and use a vinegar and salt pickle solution.
Wouldn’t the same work for Sparex?
I’m doing a test now and the green colour is reduced but there seems
to be a cloudy deposit that is forming. I will try to filter it out,
and then test my “cleaned” solution.