Removal of carbonyl sulfide and hydrogen sulfide from synthesis gas by chlorobium thiosulfatophilum

Journal Article · · Applied Biochemistry and Biotechnology; (United States)

DOI:https://doi.org/10.1007/BF02941849· OSTI ID:7092272

Basu, R; Clausen, E C; Gaddy, J L ^[1]; Klasson, T ^[2]

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1. Univ. of Arkansas, Fayetteville, AR (United States)
2. Oak Ridge National Lab., TN (United States)

The anaerobic, photosynthetic bacterium Chlorobium thiosulfatophilum utilizes CO[sub 2] as its carbon source and operates at the mesophilic temperature of 30[degrees]C. It requires incandescent light for growth and compounds such as H[sub 2]S, S[degrees], S[sub 2]O[sub 3][sup 2[minus]], or H[sub 2] as a source of electrons. Of these compounds, H[sub 2]S as sulfide is the preferred electron donor, with other compounds utilized only when sulfide has been depleted from the medium. The organism is also capable of indirectly utilizing carbonyl sulfide (COS), since COS reacts with water to form CO[sub 2] and H[sub 2]S. This work presents kinetic information on the rate of growth of C. thiosulfatophilum, as well as the rates of uptake of both H[sub 2]S and COS. The growth is dependent on light intensity according to a Monod type relationship. 19 refs., 9 figs.

• DOE Contract Number: FG21-90MC27225
• OSTI ID: 7092272
• Journal Information: Applied Biochemistry and Biotechnology; (United States), Vol. 45-46; ISSN 0273-2289
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
59 BASIC BIOLOGICAL SCIENCES
CARBON OXYSULFIDE
REMOVAL
HYDROGEN SULFIDES
PHOTOSYNTHETIC BACTERIA
BIOLOGICAL PATHWAYS
SYNTHESIS GAS
PURIFICATION
BACTERIA
CARBON COMPOUNDS
CHALCOGENIDES
FLUIDS
GASES
HYDROGEN COMPOUNDS
MICROORGANISMS
SULFIDES
SULFUR COMPOUNDS
010402* - Coal
Lignite
& Peat- Purification & Upgrading
550700 - Microbiology