NOVELTY - Solid waste is ground and sifted such that thick material is re-injected to grinding. Material from fluidizing sifter is sent to anaerobic digestion stage (I), and to the next. Amount of solid reactors configured with plant, is optimized by enzymatic excitation in each stage and compression, friction and drainage of solid material. Liquid for anaerobic reaction is separated. Chemically enhanced mud compensators is generated and made biotically inert along with fuel production and gas is reused. Equipment for treatment and final disposal of waste is also claimed.    USE - For treating and final disposal of domestic solid waste with production of methane as a biofuel.    ADVANTAGE - The domestic solid waste is economically treated and disposed using continuous and watertight equipment. Emission of methane is prevented by avoiding escape and/or explosion in sanitary filling. Consumption of fossil energy is diminished.    DETAILED DESCRIPTION - Solid wastes of domestic origin is ground and sifted such that the thick material is re-injected to the grinding process. The material originating from the fluidizing sifter is sent to stage (I) of anaerobic digestion, and successively to the next. The amount of solid reactors with which the plant is configured, is optimized by early enzymatic excitation in each stage with the control of critical variables of the digestion process with the extraction of gases at any stage of production, and by compression, friction and drainage of the solid material. The liquid for anaerobic reaction is separated and chemically enhanced mud compensator is generated for receiving lands and made biotically inert along with the production of a fuel derived of waste and a gas is reused. Thus, treatment and final disposal of solid waste are enabled. Equipment for treatment and final disposal of solid waste is also claimed.    DESCRIPTION OF DRAWING(S) - The figure shows the block diagram of treatment and final disposal of domestic solid wastes.