Carbon disulfide oxidation by a microbial consortium from a trickling filter |
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Authors: | Sergio Alcántara Isabel Estrada Ma Soledad Vásquez Sergio Revah |
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Institution: | (1) Department of Chemical Engineering, Universidad Autónoma Metropolitana- Iztapalapa, Apdo. Postal 55–534, 09340 México, D.F. México |
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Abstract: | Biological oxidation rates of CS2 with a mixed microbial culture obtained from a trickling filter were optimal with 3 mM CS2, pH 7, 30°C and SO4
2– below 25 g l–1. Degradation rates were 3.4 mg CS2/gproteinmin and 13.8 mg H2S/gproteinmin. The concentrations of intermediates (H2S, COS and S°) and the product (SO4
2–) of CS2 oxidation were measured. The biological oxidation was due principally to Gram negative bacteria. |
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Keywords: | carbon disulfide hydrogen sulfide sulfur oxidizing consortia thiobacilli |
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