BIOREACTOR FOR HOTHOUSES Russian patent published in 1997 - IPC

FIELD: biogas production. SUBSTANCE: invention concerns disposal of manure and droppings to produce biogas utilized for heating hothouses, as biofertilizers for ground, and substrate for supplementary leaf feeding of plants. Bioreactor contains casing with fermentation chamber in its lower part and gas space in top part communicated with gas collector enclosing floating bell with lower part immersed into hydraulic gate. Outside, solid phase fermenter and, concentrically to it (between two shells), regeneration heat exchanger are disposed. The latter is filled with charge, e.g. steel cuttings, and accommodates biogas combustion burner in its lower part, its upper part being communicated with hothouse room. Solid-phase fermenter is provided with liquid-supply collector in upper part and with discharge pipe in lower part. EFFECT: improved design. 1 dwg