METHOD OF GASES TREATMENT AND DEVICE FOR ITS EMBODIMENT Russian patent published in 2001 - IPC

FIELD: methods of gases treatment. SUBSTANCE: method consists in scrubbing the gas containing hydrogen sulfide in first scrubber with alkaline fluid; used flushing fluid is treated in aerobic reactor with oxygen in presence of sulfide-oxidizing bacteria; flow escaping from aerobic reactor is used again as flushing fluid. Elementary sulfur obtained during treatment with oxygen is with drawn from escaping flow which is then treated in aerobic reactor with sulfate-reducing bacteria and is returned to aerobic reactor. Proposed plant may be also used for removal of SO₂, COS, NH₄ and NCN. EFFECT: enhanced efficiency of gas treatment process. 12 cl, 1 dwg