METHOD OF SULFUR COMPOUNDS REMOVAL FROM WATER AND METHOD OF SULFUR-BEARING SMOKE GAS TREATMENT

摘要

FIELD: water sulfur compounds removal and sulfur-bearing smoke gas treatment. SUBSTANCE: method of sulfur compounds removal from water, that has few number of organic substances, uses anaerobic reduction of sulfur compounds till sulfide with following partial oxidation of sulfide till elementary sulfur. Consumption of expensive donor of electrons (feeding substance) in process of anaerobic reduction is decreased by usage of one or several of following technical methods: a1/ maintaining concentration of sulfate in anaerobic flow at level at least of 500 mg/l; a2/ maintaining concentration of sulfate in anaerobic flow at level at least of 100 mg/l; b/ maintaining of concentration of salt in terms of sodium ion equivalents in anaerobic medium at level at least of 3 g/l; c/ maintaining concentration of sulfide in anaerobic inflowing medium at level at least of 100 mg/l; d/ introduction in anaerobic treated medium of inhibitor, that is more toxic for methane producing bacteria than for not fully oxidized sulfate-reducing bacteria or for sulfate-reducing bacteria oxidizing compounds, that have one carbon atom. EFFECT: increased effectiveness of both methods.