Kinetic model of CuS oxidation by Thiobacillus ferrooxidans and Thiobacillus thiooxidans bacteria

• Autorzy: Nowaczyk K , Domka F.
• Języki publikacji: EN

Abstrakty

EN

Kinetics of the process of microbiological oxidation of synthetic CuS performed with the involvement of pure and mixed cultures of T. ferrooxidans and T. lluooxidans bacteria were studied. The CuS oxidation with T. ferrooxidans bacteria was found to be best described by the model of inhibition of the first order with respect to the substrate and the product-inhibitor, while the process with T. thiooxidans and mixed cultures of these bacteria is best described by the first order reaction with respect to the substrate. It was also shown that the adaptation of the bacteria to the CuS tested significantly shortens the induction period and increases reaction rates. The optimum conditions of CuS oxidation were established. The yield of the reaction was established as ca. 30% and an increase in the reaction rate was observed when using mixed cultures of T. feirooxidans i T. thiooxidans bacteria adapted to CuS at 35ºC, in the medium containing 1 % (wt./vol.) CuS at the initial pH of the medium of 1.82.

Słowa kluczowe

EN

Thiobacillus thiooxidans; oxidation; microbial oxidation; Thiobacillus ferrooxidans; kinetics; bacteria

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2000
• Tom: 09
• Numer: 3
• Opis fizyczny: p.195-201,,fig.

Twórcy

autor

Nowaczyk K

• Adam Mickiewicz University, 60-780 Poznan, Grunwaldzka 6, Poland

autor

Domka F.

Bibliografia

• 1. CWALINA B. Metabolizm siarki u Thiobacillus ferrooxidans w procesie lugowania metali z mineralow siarczkowych. Wyd. Uniwersytetu Slaskiego, Katowice, 1994.
• 2. KARPINSKA-SMULIKOWSKA J, UKLEJA K., TATARCZYK B., UKLEJA J. Wstepne badania nad mozliwoscia usuwania metali ciezkich z komunalnych osadow sciekowych metoda mikrobiologicznego lugowania. Materialy Ogolnopolskiego Sympozjum Naukowo-Technicznego, Bioremediacja gruntow, Wista - Bukowa, 191-201, 1998.
• 3. NOWACZYK K., JUSZCZAK A., DOMKA F. Microbiological oxidation of the waste ferrous sulphate. Polish Journal of Environmental Studies, 8(6), 409, 1999.
• 4. KREBS W., BROMBACHER C, BOSSHARD P.P., BACHOFEN R., BRANDL H. Microbial recovery of metals from soils. FEMS Microbiology Revievs 20, 605, 1997.
• 5. NOWACZYK K., DOMKA F. Oxidation of Pyrite and Marcasite by Thiobacillus species bacteria. Polish Journal of Environmental Studies, 9(2), 87, 2000.
• 6. BOSECKER K. Bioleaching: metal solubilization by microorganisms. FEMS Microbiology Revievs 20, 591, 1997.
• 7. NOWACZYK K., JUSZCZAK A, DOMKA F., SIEPAK J. The use of Thiobacillus ferrooxidans bacteria in the process of chalcopyrite leaching. Polish Journal of Environmental Studies, 7(5), 307, 1998.
• 8. FARBISZEWSKA T. Mikrobiologiczne lugowanie miedzi. Zesz. Nauk Wyzszej Szkoly Inzynieryjnej w Opolu. Seria: Problematyka rozna, 6, 115, 1983.
• 9. ORLOWSKA B. GOLAB Z. Drobnoustroje heterotroficzne aktywne w procesie lugowania metali. Postepy Mikrobiologii, XXVII (3) 243, 1988.
• 10. MARCZENKO Z. Kolorymetryczne oznaczanie pierwiastkow, WNT, W-wa, 1968.
• 11. SAKAGUSCHI H., TORMA A.E., SILVER M. Microbiological oxidation of syntetic chalcocite and covellite by Thiobacillus ferrooxidans. Appl. Environ. Microbiol., 31(1), 7, 1975.