BIOGAS PLANT Russian patent published in 2010 - IPC C12M1/107 C02F3/28 

FIELD: power engineering.

SUBSTANCE: biogas plant comprises reactor comprising three concentrically arranged cylindrical sections: external one for execution of mesophilic stage of anaerobic fermentation of biomass, middle one for intermediate stage and central one for thermophilic stage of anaerobic fermentation, pipeline of initial biomass supply into external section, pipeline of produced fertiliser drain from lower part of central section and system of biogas extraction from sections. External and middle sections communicate in lower part, and middle and central ones - in upper part. Central section is equipped with heat exchanger to heat fermented mass. External section comprises mixing device in the form of impeller.

EFFECT: design of biogas plant provides for high extent of biological wastes decomposition and quite high efficiency by biogas.

1 dwg