Half-gallon copper reduction cell set up

I'm showing the simple method to recover copper from e-waste solutions. Take your concentrated copper-containing waste and dilute with water 1 unit of concentrate to 4 units of water. Let sit in a warm spot until it turns clear blue and solids settle out. Take your jar and make a bimetal setup as you see in the video, with a wire connecting the iron and copper pieces which remains outside the solution. Then pour the copper solution into the jar and let the reaction run! It usually takes 4 days to complete the reduction into copper crystals. If left in there after the copper is reduced, other metals can begin to reduce, such as cobalt, tantalum, and others less reactive than iron; which will form a dark black powder on the iron.