Abstract: Method and apparatus (3) for treating wastes, particularly of a biological and domestic origin, whose peculiarity consists in the fact of comprising a first treating step and first means (4) for treating such wastes for the purpose of separating a liquid fraction essentially suitable for disposal and a semisolid fraction for further processing, and a second treating step and second means (5) for treating the semisolid fraction separated in such first treating step and by such first treating means for the purpose of eliminating the residual moisture contained in such semisolid fraction, so as to turn such semisolid fraction into a block of dry refuse suitable for handing over to the municipal solid refuse collecting and disposal services.