Process for the anaerobic fermentation of biogenic waste materials and plant for carrying out this process

Abstract

A process for the anaerobic fermentation of biogenic waste materials including the steps that a fermentation material containing the waste materials is mixed with liquid and the fermentation material suspension obtained in this manner is anaerobically fermented in a fermenter and the digest produced in the fermentation of the fermentation material suspension is dewatered of a dewatering device, wherein, with separation of press water, a press cake is obtained that has a dry matter proportion increased with respect to the digest; the press water is subjected to a solids separation, wherein a residual liquid having a dry matter proportion reduced with respect to the press water of at most 15% by weight is obtained and the residual liquid is used at least in part for the mixing according to the fermentation material step.

Dependencies are inferred from the claim text.