As in the previous stage, it is required to eliminate water and limonene traces from the sludge. The amount of evaporated limonene, estimated to be 137.8 g/FU, is also burned converted in CO2. The electricity consumption of the oven was evaluated equal to 186 MJe/FU. After this step, the dried AnF obtained as homogeneous grey powder can be directly employed as organic fertilizer without any further treatment replacing a typical inorganic commercial fertilizer (NPK, 20:10:10). The avoided production of 1 kg of NPK per each kg (ratio 1:1) of produced dry sludge is considered in the model.