Abstract:
A bench scale hydrometallurgical method is proposed for the detection nd removal of copper from the effluents discharged by various industries into Kabul Rivet. The conditions, rob as, effect of cid concentration temperature and acid leaching time were optimized The effluents were ashed at 500-600 degreesC and the residue was leached with 7.5 M HCl for six hours at 80 degreesC. Almost 99% removal of copper is achieved from the acid leached solution by extraction into 5% solution of trioctylamine in benzene and subsequently stripping with 0.1 M HCl solutions. The technology developed is economically feasible because the solvents used are regenerated and recycled just after washing with distilled water.
