2009
DOI: 10.1016/j.watres.2008.10.032
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Modeling the PAO–GAO competition: Effects of carbon source, pH and temperature

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Cited by 334 publications
(179 citation statements)
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References 53 publications
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“…Although fluctuating levels of Competibacter abundances were observed, these did not compromise the granule phosphate removal activity of the microbial community dominated by Accumulibacter-like bacteria. This supports recent model predictions that in 100% propionate-fed systems, Competibacter does not impair Accumulibacter populations (36). Putative GAOs belonging to Alphaproteobacteria and recently reported as responsible for deteriorating phosphate removal in propionate-fed activated sludge (40) were apparently not important in the system of this study, and no T-RF nor clone associated with them was detected.…”
supporting
confidence: 92%
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“…Although fluctuating levels of Competibacter abundances were observed, these did not compromise the granule phosphate removal activity of the microbial community dominated by Accumulibacter-like bacteria. This supports recent model predictions that in 100% propionate-fed systems, Competibacter does not impair Accumulibacter populations (36). Putative GAOs belonging to Alphaproteobacteria and recently reported as responsible for deteriorating phosphate removal in propionate-fed activated sludge (40) were apparently not important in the system of this study, and no T-RF nor clone associated with them was detected.…”
supporting
confidence: 92%
“…GAOs compete for carbon but they do not contribute to EBPR (10,43). In general, temperatures equal to or lower than 20°C and pH values equal to or higher than 7.5 favor Accumulibacter over GAO populations (36). In addition, propionate provides Accumulibacter with a selective advantage because the propionate uptake rate by Competibacter GAOs is insignificant and because only Alphaproteobacteria GAOs, and not other GAOs, may compete for propionate (44,45).…”
mentioning
confidence: 98%
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“…For example, the pH of a wastewater impacts on chemical species distribution of the weak acid-base systems such as ammonia, carbonate, phosphate, sulphate and volatile fatty acids. These in turn dictate, indirectly via pH or through direct inhibition, the rate of many biological processes including nitrification/denitrification, uptake/release of phosphorus and anaerobic digestion , Ganigué et al 2010, Hellinga et al 1999, Lopez-Vazquez et al 2009, Van Hulle et al 2007). Furthermore, the weak acid-base system impacts on other physicochemical processes such as chemical precipitation, spontaneous minerals precipitation and stripping of carbon dioxide and ammonia (Loewenthal et al 1995), as also highlighted in Figure 1.1.…”
Section: Figure 11 -Major Physicochemical Processes Occurring In a Tmentioning
confidence: 99%