NOVELTY - Integrated method of composting compostable organic waste matter comprises: (a) macerating a composting mixture of compostable organic waste matter with a structuring agent in a composting compartment (10) for a period of time sufficient for endogenous microorganisms to effect biodegradation; and (b) mixing additional compostable organic waste matter and/or structuring agent in the composting mixture of step (a), where when the composting compartment is full, at least part of the composting mixture is transferred to a maturation compartment to further macerate and produce a compost.    USE - The method is useful for composting compostable organic waste matter comprising food waste, vegetal matter, vegetable matter, fruit matter and/or bakery matter. The compost produced by the method is useful as fertilizer. No biological data given.    ADVANTAGE - The method has reliable and controlled logistics, with centralization of all operations, for maintaining environmentally secure processes during any season of the year thus allowing important savings on the cost of labor, on the cost of the acquisition and management of important volumes of organic matter.    DETAILED DESCRIPTION - Integrated method of composting compostable organic waste matter comprises: (a) macerating a composting mixture of compostable organic waste matter with a structuring agent in a composting compartment (10) for a period of time sufficient for endogenous microorganisms to effect biodegradation; and (b) mixing additional compostable organic waste matter and/or structuring agent in the composting mixture of step (a), where when the composting compartment is full, at least part of the composting mixture is transferred to a maturation compartment to further macerate and produce a compost for use as a fertilizer, where the composting compartment comprises a leachate retaining base preventing draining of leachate into a surrounding soil, and is connected to a reservoir for collecting the leachate, where the leachate is reinjected into the composting mixture and the composting mixture is exposed to an evaporator to evaporate the leachate from the composting mixture. An INDEPENDENT CLAIM is included for integrated method-II of biological valorization of compostable organic waste matter for composting comprising: (a1) collecting in a coordinated manner a compostable organic waste matter from at least one waste matter generator; and (b1) delivering in a coordinated manner the collected compostable organic waste matter to at least one composting site, where the coordinated manner is based on a schedule and a geographical route between the waste matter generator and the composting site and the quality of the compostable organic waste matter is verified at the waste matter generator and at the composting site to prevent contamination of the organic waste matter with a non-compostable waste matter.    DESCRIPTION OF DRAWING(S) - The figure shows a composting cell comprising composting compartment.    Composting compartment (10)    Attendant reservoir (30)    Grille. (50)