Abstract: The invention relates to a method and a device for the conditioning of organic residuals occurring, for example, in biogas systems, wherein a digestate materializes from the organic residuals as an intermediate product during biogas regeneration in a fermenter, the digestate being subjected to mechanical conditioning comprising at least one concentration step. Subsequent to the mechanical conditioning, a first part of the liquid digestate passes through an evaporation process for the production of a top dressing, and a second part of the concentrated digestate passes through a drying process for the production of base dressing, wherein a mass flow of the top dressing concentrate is fed to the partial flow of the base dressing production such that the base dressing is enriched upgraded. Due to this enrichment, the digestate can either be gasified for energy generation, or utilized as an organic agricultural fertilizer.

Abstract: The invention relates to a method for biologically treating a fluid sufficiently charged with organic materials, the method being performed in a tank and the fluid being: first subjected to a mixing and acidifying step (A), subsequently in a heavy load step (B) during which activated-sludge is re-circulated and then in a light load step (C) subjected to anaerobic degradation whilst producing methane gas, and subsequently treated in a secondary sedimentation step (D) from where the sludge can also be re-circulated, and the biogas which is produced in the heavy load step (B) and the light load step (C) is collected.