Continuous aerobic phenol degradation by defined mixed immobilized culture in packed bed reactors
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu hodnotící studie, časopisecké články, práce podpořená grantem
PubMed
16408848
DOI
10.1007/bf02931410
Knihovny.cz E-zdroje
- MeSH
- aerobióza MeSH
- biodegradace MeSH
- bioreaktory * MeSH
- biotechnologie metody MeSH
- Candida tropicalis růst a vývoj metabolismus MeSH
- ekosystém * MeSH
- fenol metabolismus MeSH
- gramnegativní bakterie genetika růst a vývoj MeSH
- imobilizované buňky MeSH
- kultivační média MeSH
- Pseudomonas putida růst a vývoj metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
- hodnotící studie MeSH
- práce podpořená grantem MeSH
- Názvy látek
- fenol MeSH
- kultivační média MeSH
A defined mixed culture of Pseudomonas putida, Commamonas testosteroni and Candida tropicalis was immobilized by adsorption on polyurethane foam, cocoa-fibers, expanded slate and sintered glass. Packed bed reactors were used for long-term continuous phenol biodegradations. Loading experiments were done to study the impact of the following parameters: (1) hydraulic retention time, (2) dissolved oxygen concentration, and (3) elimination of the oxygen limitation. After the acclimation period (approximately 10 d), the loading test with the individual packings showed the following maximum degradation rates: sintered glass 34, polyurethane foam 12, expanded slate 11.5, and cocoa-fibers 7.7 kg m(-3) d(-1). All these values were reached at a removal efficiency >99 % and with oxygen in excess. Under these conditions, the pH of the diluted unbuffered medium in the reactor effluent was 3.2-4.0 and no incompletely oxidized metabolic intermediates were found. The free cell concentration in the effluent increased after the phenol overloading time period.
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Environ Pollut. 1995;89(2):189-95 PubMed
Appl Environ Microbiol. 1983 Jun;45(6):1921-31 PubMed
J Biotechnol. 2002 Jul 17;97(1):1-11 PubMed
Bioresour Technol. 2001 Feb;76(3):245-51 PubMed
Appl Microbiol Biotechnol. 1992 May;37(2):252-9 PubMed
Biotechnol Bioeng. 1999 Apr 20;63(2):175-84 PubMed
Folia Microbiol (Praha). 2002;47(6):701-7 PubMed
Appl Environ Microbiol. 1991 Apr;57(4):1213-7 PubMed
Folia Microbiol (Praha). 2004;49(1):41-5 PubMed
Waste Manag. 2002;22(7):703-10 PubMed
