Procedure for determination of elemental sulphur bio-oxidation rate

A procedure is described for measuring the rate of biooxidation of elemental sulphur in nutrient solutions. Results of preliminary measurements of sulphur bio-oxidation rate in a dynamic system are presented. The rate of sulphur bio-oxidation has been determined at the level of 0.02–0.05 g of sulphur per m² of sulphur per h.List of Symbols C g/dm³ concentration of sulphate ions - C ₂ g/dm³ concentration of sulphate ions in withdrawn solution - C g/dm³ C difference between solution outlet and inlet to sulphur bed - F m² sulphur surface exposed to bacteria action - m g mass of elemental sulphur - V dm³ volume of solution - V ₀ dm³/h volume of fresh solution supplied to the set - V ₁ dm³/h circulating solution flow rate - V ₂ dm³/h volume of solution withdrawn - h time Abbreviations RBES rate of bio-oxidation of elemental sulphur