“…Anyway, the simplest and most widely way for energy recovery remains incineration. By this route, rejects and residues in the production of brown packaging paper based on 100 % recycled paper can be used to generate 20-35 % of the energy needs of a paper mill (Menke, 2013). In order to verify this potential use, some targeted physicochemical properties of our screen rejects were evaluated, including elemental composition, heating value, moisture and ash content.…”