Strategies for augmenting the pentachlorophenol degradation potential of UASB anaerobic granules

Anaerobic degradation of pentachlorophenol (PCP) is an example of a process that may benefit from enrichment or bioaugmentation. In one approach, enrichment acceleration was attempted by applying an on-line control-based selective stress strategy to a native anaerobic upflow sludge bed (UASB) system...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 45(2002), 10 vom: 01., Seite 35-41
1. Verfasser: Guiot, S R (VerfasserIn)
Weitere Verfasser: Tartakovsky, B, Lanthier, M, Lévesque, M J, Manuel, M F, Beaudet, R, Greer, C W, Villemur, R
Format: Aufsatz
Sprache:English
Veröffentlicht: 2002
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Journal Article Research Support, Non-U.S. Gov't DNA, Bacterial Environmental Pollutants Pentachlorophenol D9BSU0SE4T
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520 |a Anaerobic degradation of pentachlorophenol (PCP) is an example of a process that may benefit from enrichment or bioaugmentation. In one approach, enrichment acceleration was attempted by applying an on-line control-based selective stress strategy to a native anaerobic upflow sludge bed (UASB) system; this strategy linked PCP loading rate to methane production. As a result, the reactor biomass potential for PCP complete dechlorination reached a rate of 4 mg g(-1) volatile suspended solid (VSS) day(-1) within a period of 120 days. In another approach, a pure culture, Desulfitobacterium frappieri PCP-1, a strictly anaerobic Gram-positive bacterium, was used to augment the granular biomass of the UASB reactor. This also resulted in a specific degradation rate of 4 mg PCPg(-1) VSS day(-1); however, this potential was attained within 56 days. Fluorescent in situ hybridization (FISH) showed that the PCP-1 strain was able to rapidly attach to the granule and densely colonize the outer biofilm layer 
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650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Tartakovsky, B  |e verfasserin  |4 aut 
700 1 |a Lanthier, M  |e verfasserin  |4 aut 
700 1 |a Lévesque, M J  |e verfasserin  |4 aut 
700 1 |a Manuel, M F  |e verfasserin  |4 aut 
700 1 |a Beaudet, R  |e verfasserin  |4 aut 
700 1 |a Greer, C W  |e verfasserin  |4 aut 
700 1 |a Villemur, R  |e verfasserin  |4 aut 
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