INHIBITING FORMATION OF BIOGENIC SULPHIDE VIA COMBINATION OF BIOCIDE AND METABOLIC INHIBITOR

摘要

FIELD: chemistry.;SUBSTANCE: method involves treating a water-based medium containing sulphate-reducing bacteria SRB in industrial aqueous systems of chemical production and oil refining. Inhibition of production of biogenic sulphide with SRB takes place as a result of synergetic action of a biocide component in a first concentration and a metabolic inhibitor in a second concentration. The biocide immediately destroys the first portion of SRB. The biocide component is selected from a group comprising aldehydes, amine-type compounds, halogenated compounds, sulphur compounds, salts of quaternary phosphonium and/or combinations thereof. The metabolic inhibitor inhibits growth of a second portion of SRB without its direct destruction. The metabolic inhibitor component is selected from a group comprising nitrite, molybdate, tungstate, selenate, anthraquinone and/or combinations thereof. Contact between the SRB and the biocide and metabolic inhibitor can take place continuously, intermittently or simultaneously.;EFFECT: method ensures efficient inhibition of production of biogenic sulphide with SRB during combined use of components in considerably lower concentrations than if the biocide or metabolic inhibitor was used separately.;25 cl, 2 dwg, 1 ex