Biogas plant with fermentation chamber and installation for the production and use of biogas

摘要

Biogas plant with tunnel-shaped fermentation chamber, equipped with a biomass tank with thermally insulated bottom and substantially vertical foundation walls, a facility to moisten the biomass with a processor liquid, a leachate recirculation facility, vaulted roof over a support structure and supported by the foundation walls of the tank, hermetic gables and biogas storage formed by a double layer of membrane of the roof with entrance to the warehouse located in the upper part of the fermentation chamber characterized by two layers of membrane, upper (3a) and lower (3b) that form the biogas store (3c) are installed on opposite sides of the rigid arched structure of the roof, the lower membrane (3b) has gas openings (29) at approximately one height of 1/4 part of the total height of the structure, and the input channel is connected to a duct fan (8) qu e forces the biogas circulation to the biogas store (3c) while the lower edges (5) of the roof are supported on the top of the substantially vertical foundation walls (1) of the biomass tank, while the installation for wetting the biomass with the processing liquid has wetting nozzles (7a) located in the biomass loading zone at different heights depending on the biomass loading height, preferably in the intermediate zone (1b) additionally having in the loading zone of biomass a channel (2) for pulp, preferably created by a perforated partition (4) supported on the bottom of biomass deposit or constituting a perforated tube, suspended, supported or freely placed in a biomass layer.