Paques Biological Systems BV Netherlands

The genus Thiobacillus, especially the species T. denitrificans catalyzed the oxidation reactions of hydrogen sulfide yielding soluble hydrosulfide compounds, elemental sulfur, and sulfuric acid. Carbonyl sulfide and carbon disulfide are converted to hydrogen sulfide by hydrolysis. Additionally, they are oxidized to SOx and sulfates via microbial action. The reported oxidation reactions of thiosulfate using nitrate as electron acceptor are [Pg.353]

Regarding the conditions for the biological oxidation, the optimum pH is in the range of 7-9, temperature of about 30°C, nutrients supply and the electric conductivity of the washing liquid must be kept between 30 and lOOmS/cm. In general, neutrophilic sulfide-oxidizing cultures of Thiobacillus species can be used, especially T. denitrificans. [Pg.353]

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