Treating apparatus for vegetable substances and/or substances of biologic origin and/or substances from the biologic fraction of industrial and municipal wastes, for the conversion of said substances into biomass to be used for producing electric and thermal energy from renewable sources, comprising: a containment unit (201, 301) adapted to contain said substance to be treated, exsiccation means (205, 305) adapted to insufflate hot air into said containment unit in order to exsiccate said substance, and motion means (202, 302) adapted to put in motion said substance inside said containment unit (201, 301) during said exsiccation, a pre-treatment unit comprising mechanical pressing and/or grinding means; characterized in that: said pre-treatment unit is configured to remove part of the water content of said substance before said substance is inserted into said containment unit (201, 301), also characterized in that: said containment unit has a substantially cylinder-like or truncated-cone-like shape, and wherein said motion means comprise rotation means adapted to allow said containment unit to rotate about at least one axis of rotation substantially coinciding with the axis of said cylinder, and motor means adapted to rotate said containment unit in order to move and stir said substance, by exerting a centrifugal action that moves away a residual water contained in the substance, and said containment unit comprises at least one wall comprising a plurality of holes, said holes being so sized as to allow to hold inside said substance put in motion during said rotation, said holes being further configured to allow said hot air, insufflated by said exsiccation means, to enter said containment unit through said holes. said pre-treatment unit is configured to remove part of the water content of said substance before said substance is inserted into said containment unit (201, 301), also characterized in that: said containment unit has a substantially cylinder-like or truncated-cone-like shape, and wherein said motion means comprise rotation means adapted to allow said containment unit to rotate about at least one axis of rotation substantially coinciding with the axis of said cylinder, and motor means adapted to rotate said containment unit in order to move and stir said substance, by exerting a centrifugal action that moves away a residual water contained in the substance, and said containment unit comprises at least one wall comprising a plurality of holes, said holes being so sized as to allow to hold inside said substance put in motion during said rotation, said holes being further configured to allow said hot air, insufflated by said exsiccation means, to enter said containment unit through said holes. said containment unit has a substantially cylinder-like or truncated-cone-like shape, and wherein said motion means comprise rotation means adapted to allow said containment unit to rotate about at least one axis of rotation substantially coinciding with the axis of said cylinder, and motor means adapted to rotate said containment unit in order to move and stir said substance, by exerting a centrifugal action that moves away a residual water contained in the substance, and said containment unit comprises at least one wall comprising a plurality of holes, said holes being so sized as to allow to hold inside said substance put in motion during said rotation, said holes being further configured to allow said hot air, insufflated by said exsiccation means, to enter said containment unit through said holes.