Eco-Innovative Products and Technologies Based on the Recycling of Certain Wastes from Tanneries and Non-Ferrous Metals Industry for the Transition of the Leather Industry to a Circular Economy Model

This paper presents experiments of recovery/recycling/reuse of as much tannery waste as possible to obtain new auxiliary materials with high added value and low eco-aggressiveness intended for leather processing. The paper also deals with conversion of waste difficult to manage (some of which is unrecyclable) from the non-ferrous metal industry into factors for increasing the eco-efficiency of the leather industry.