METHANE TANK Russian patent published in 1997 - IPC

FIELD: waste disposal. SUBSTANCE: invention relates to anaerobic fermentation of waste waters containing organic agricultural refuse with organic industrial and household inclusions. Methane tank has vertical cylindrical casing, conical top and bottom covers, connecting pipe to admit waste water in lower part of tank, and reaction space filled with waste water and inert anaerobic biomass immobilization carrier. Construction of methane tank is distinguished by combining biogas-discharge and treated waste-drainage pipes. Lower part of this pipe is located at the level of gas-liquid phase interface and upper one transforms into gas-liquid line connecting methane tank with media-separation chamber. The latter is a hermetic vessel with treated water-drainage pipe in its bottom and biogas- discharge pipe in its cap. EFFECT: simplified design. 1 dwg