NOVELTY - Improved process for dehydrating organic waste and transforming into biomass and biogas, comprises mechanical dehydration step, biotechnology step, thermal drying of organic waste, and waste pruning to obtain biomass and biogas. The process comprises: (a) discharging organic waste to remove residual contaminants; (b) subjecting organic waste free of contaminants to mechanical dehydration; (c) pumping resulting effluent to treatment plant (5); (d) driving extracted by rotary dryers (7) and crushing dried residue; and (e) returning ground residue to feed furnace for drying waste.    USE - The process is useful for dehydrating organic waste and transforming into biomass and biogas.    ADVANTAGE - The process: provides clean energy from biomass and biogas and reduces organic waste landfills, thus increasing the utilization of biomass while reducing polluting manure; is rapid and can be completed within 8 hours; and utilizes the abundantly available residues of trees and vegetation, food scraps, mud and water treatment plants as raw materials to produce biomass and biogas, hence economical and energy efficient.    DETAILED DESCRIPTION - Improved process for dehydrating organic waste and transforming into biomass and biogas, comprises a set of consecutive stages configured for mechanical dehydration step, biotechnology step, thermal drying step of organic waste, preferably of type class IIA not inert waste, pruning of trees and vegetation, food scraps, mud and water treatment plants to obtain biomass and biogas. The process comprises: (a) discharging the organic waste for receiving hoppers (2) and leading to sorting lines with electromagnets, rotating screens and manually sorting conveyor to remove residual contaminants comprising plastics, glass, metals and other contaminants; (b) subjecting the organic waste free of contaminants to mechanical dehydration by passing them on rollers; (c) pumping the resulting effluent to the treatment plant (5) maintained at pH 5-8 with quicklime, lime milk or sodium hydroxide, and after treating, passing the effluent to biodigesters step up flow for anaerobic process where the methanogenic bacteria produces biogas, the desulfurized biogas is burnt in motor generators (6) for Otto-cycle electricity generation, and the effluent passing through the digestion step is pumped to a physical-chemical treatment plant where it is treated; (d) driving the extracted fibers of the steps (a)/(b) by rotary dryers (7) where the relative humidity is 70-80%, while the moisture of the output is 8-20%, and after leaving the dryers the dried residue is crushed by hammer mill or knives (8); and (e) returning the ground residue i.e. 20-40% for the process to feed the furnace for drying the waste itself, while pelletizing the another part of the ground residue.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic flowchart of the dehydration process for obtaining biomass and biogas.    Receiving hoppers (2)    Effluent treatment plant (5)    Motor generators (6)    Rotary dryers (7)    Hammer mill or knives (8)