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Titolo:
Characterization of a novel biocatalyst system for sulfide oxidation
Autore:
McComas, C; Sublette, KL; Jenneman, G; Bala, G;
Indirizzi:
Univ Tulsa, Ctr Environm Res & Technol, Tulsa, OK 74104 USA Univ Tulsa Tulsa OK USA 74104 Environm Res & Technol, Tulsa, OK 74104 USA Phillips Petr Co, Bartlesville, OK 74004 USA Phillips Petr Co Bartlesville OK USA 74004 Co, Bartlesville, OK 74004 USA Idaho Natl Engn & Environm Lab, Idaho Falls, ID 83415 USA Idaho Natl Engn & Environm Lab Idaho Falls ID USA 83415 lls, ID 83415 USA
Titolo Testata:
BIOTECHNOLOGY PROGRESS
fascicolo: 3, volume: 17, anno: 2001,
pagine: 439 - 446
SICI:
8756-7938(200105/06)17:3<439:COANBS>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
THIOBACILLUS-DENITRIFICANS; OIL-FIELD; MICROBIAL TREATMENT; HYDROGEN-SULFIDE; BACTERIA; STRAINS; BRINE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Sublette, KL Univ Tulsa, Ctr Environm Res & Technol, 600 S Coll Ave, Tulsa, OK 74104 USA Univ Tulsa 600 S Coll Ave Tulsa OK USA 74104 sa, OK 74104 USA
Citazione:
C. McComas et al., "Characterization of a novel biocatalyst system for sulfide oxidation", BIOTECH PR, 17(3), 2001, pp. 439-446

Abstract

It has been demonstrated that an enrichment culture dominated by Thiomicrospira sp. CVO may be cultured on H2S(g) as an energy source under sulfide-limiting conditions in suspended culture with nitrate as the electron acceptor. Hydrogen sulfide (10,000 ppmv) was completely removed from the feed gasand oxidized to sulfate in <3 s of gas-liquid contacting time. Maximum loading of the biomass for sulfide oxidation was observed to be 5.8 mmol H2S/h-g biomass protein, comparable to that reported previously for Thiobacillusdenitrificans under similar conditions. However, the enrichment culture was shown to be more tolerant of extremes in pH and elevated temperature thanT. denitrificans. Coupled with a reported tolerance of CVO for up to 10% NaCl, these observations suggest that a CVO-based culture is potentially a more robust biocatalyst system for sulfide oxidation than cultures based on Thiobacilli.

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Documento generato il 11/07/20 alle ore 16:36:27