A laboratory sample of apparatus and technological complex for regeneration of sulfuric-acid solutions for leaching of heavy metals from wastes has been developed. The developed method will allow selective separation of heavy metals and creation of closed cycles for technological solutions.
The process was studied and a prototype of hardware and technological complex for separation of non-metallic component from metal-containing waste was developed. Mathematical modeling of the leaching process and optimization of the leaching regime were carried out. The developed method is 20-30 % more economical than the existing methods.