http://www.cnr.it/ontology/cnr/individuo/prodotto/ID42070
Kinetic and phylogenetic characterization of an anaerobic dechlorinating microbial community (Articolo in rivista)
- Type
- Label
- Kinetic and phylogenetic characterization of an anaerobic dechlorinating microbial community (Articolo in rivista) (literal)
- Anno
- 2003-01-01T00:00:00+01:00 (literal)
- Alternative label
ROSSETTI S., BLACKALL L.L., MAJONE M., HUGENHOLTZ P., PLUMB J., TANDOI V. (2003)
Kinetic and phylogenetic characterization of an anaerobic dechlorinating microbial community
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- ROSSETTI S., BLACKALL L.L., MAJONE M., HUGENHOLTZ P., PLUMB J., TANDOI V. (literal)
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- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (1,6)Water Research Institute, Via Reno 1, 00198, Rome, Italy;
(2,4,5)Department of Microbiology and Parasitology, The University of Queensland, Brisbane, 4072, Australia
(3) Department of Chemistry, University of Rome La Sapienza, P.le Aldo Moro 5, 00185 Rome, Italy
(literal)
- Titolo
- Kinetic and phylogenetic characterization of an anaerobic dechlorinating microbial community (literal)
- Abstract
- A laboratory scale sequencing batch reactor (SBR) operating for enhanced biological phosphorus removal (EBPR) and fed with a mixture of volatile fatty acids (VFAs) showed stable and efficient EBPR capacity over a four year period. Phosphorus (P), polybhydroxyalkanoate (PHA) and glycogen cycling consistent with classical anaerobic/aerobic EBPR were demonstrated with the order of anaerobic VFA uptake being propionate, acetate then butyrate. The SBR was operated without pH control and 63.67 ± 13.86 mg P/L was released anaerobically. The P% of the sludge fluctuated between 6% and 10% over the operating period (average of 8.04 ± 1.31%). Four main morphological types of floc-forming bacteria were observed in the sludge during one year of intensive microscopic observation. Two of them were mainly responsible for anaerobic/aerobic P and PHA transformations. Fluorescence in situ hybridisation (FISH) and post-FISH chemical staining for intracellular polyphosphate and PHA were used to determine that Candidatus Accumulibacter phosphatis was the most abundant polyphosphate accumulating organism (PAO), forming large clusters of coccobacilli (1.0-1.5 µm) and comprising 53% of the sludge bacteria. Also by these methods, large coccobacillus-shaped gammaproteobacteria (2.5-3.5 µm) from a recently described novel cluster were glycogen accumulating organisms (GAOs) comprising 13% of the bacteria. Tetrad forming organisms (TFOs) consistent with the G bacterium morphotype were alphaproteobacteria, but not Amaricoccus spp., and comprised 25% of all bacteria. According to chemical staining, TFOs were occasionally able to store PHA anaerobically and utilise it aerobically (literal)
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