'SPOP'(Specific Product Oriented Precipitation):A new concept to recover metals from mining waste water avoiding hydroxide sludge?

摘要

Environmental pollution is a non-negligible issue for most mines and becomes an urgent task when acidic and metal loaded waters are created. "SPOP" is an environmentally friendly low-energy concept to protect water as a resource: the purified water can either be reused in various processing steps or discharged without environmental impact. The solid residues consist of precipitated oxides and native metals. This makes SPOP to a powerful method for secondary mining due to the economically attractive recovery of metals dissolved in aqueous solutions.