Very simple but practical ...
Published by Wayne Pozarycki, ZBiG Consult - Managing Director
Very simple but practical method is to dose with ferrous sulphate. This will eliminate the cyanide.
And if you don't have a reliable source of ferrous sulphate, then make your own with excess scrap metal in sulphuric acid - resulting liquid is pure ferrous sulphate. :)
1 Comment
Is presence of free ammonia have impact on ferrous sulphate ?
Published by Manjunath S, Head Projects, Utilities at TATA STEEL
1 Comment
I would think that ammonia would have little impact, but I am not 100% sure on that. My experience with ferrous and cyanide destruction comes from my time on the Gold plants in South Africa, where we made a scrap metal/sulphuric acid ferrous plant and dosed the tailings before it wa sent underground in a backfill operation - so no ammonia involved at all.
The best would be to run a small test to establish your ferrous dosage requirement and at the same time undertake observations of the impact of the ammonia, if any, on the destruction of cyanide.
Good luck with this interesting problem.
Published by Wayne Pozarycki, ZBiG Consult - Managing Director