where to from here...., page-2

Looks like APG has some competition in the recycling of Spent pickle liquor.

Part of INL's announcement

"Intec has proven technology for the recovery of heavy metals from wastewater, mine water, and waste sludges, and is currently operating a portion of its Burnie Research Facility for the recycling of heavy metals from automotive industry wastes. A variation of this technology has been proposed, under which the spent pickle liquor would be fully recycled, generating an industry-applicable iron product, highgrade zinc metal that can be returned to the hot-dip zinc galvanising bath, and refreshed acid pickle
liquor. This would be a zero-waste outcome, with significant environmental benefits at much lower cost than the current industry benchmarks in Victoria and elsewhere in the world."