and then dissolved in sulphuric acid. They are refined using electrolysis.
After recovering any selenium, mercury and, above all, cadmium, effluent is routed to a two-stage neutralisation employing lime; this process ... Densadeg, Industrial effluent treatment, Metallurgy and hydrometallurgy, Electrolysis, Dechlorination ... Densadeg Industrial effluent treatment Metallurgy and hydrometallurgy Electrolysis Dechlorination...