NOVELTY - The apparatus has a containment unit that contains the substance (101) to be treated. An exsiccation unit is adapted to insufflate hot air into containment unit in order to exsiccate the substance. A motion unit is adapted to put in motion the substance inside the containment unit during exsiccation. A pre-treatment unit (102) is provided with a mechanical pressing and/or grinding unit to remove portion of the water content of the substance before the substance is inserted into containment unit.    USE - Treating apparatus for vegetable substances derived from sylviculture and from fishing industry, aquaculture industry and marine algae industry, and from mowing and pruning of public and private greenery, substances of biologic origin and substances from biologic fraction of industrial and municipal wastes for conversion of substances into biomass used for producing electric and thermal energy from renewable sources.    ADVANTAGE - The residual energy of vegetable substances is valorized without producing any climate changing substances. The waste management is improved. The waste collection chain is expanded and the volume of waste substances is reduced. The considerable quantities of biomass are produced effectively. The environment and the public health are effectively protected.    DETAILED DESCRIPTION - The pre-treatment unit is provided with a holed matrix (104) configured to be crossed by substance during pressing and/or grinding. A screw (103) is configured to rotate and at the same time push substance through holed matrix. A motion unit is provided with a rotation unit to allow the rotation of the containment unit about one axis of rotation coinciding with the axis of cylinder. A motor unit is adapted to rotate the containment unit in order to move and stir substance. The holes in wall are sized as to allow holding the substance. The hot air is provided to enter the containment unit using hole. A conveyor belt is provided inside the containment unit for transporting and putting in motion substance. A pneumatic circuit is configured for connecting to heat exchanger (107) that is suppliable with heated water produced by a process for producing electric or thermal energy from treated substance. The exchanger is adapted to heat the air. An INDEPENDENT CLAIM is included for a treating method for vegetable substances and/or substances of biologic origin and/or substances from the biologic fraction of industrial and municipal wastes.    DESCRIPTION OF DRAWING(S) - The drawing shows an explanatory view illustrating the biomass treating method.    Substance (101)    Pre-treatment unit (102)    Screw (103)    Holed matrix (104)    Heat exchanger (107)