6533b821fe1ef96bd127addb

RESEARCH PRODUCT

New insights in the metabolic behaviour of PAO under negligible poly-P reserves

Ramón BaratMónica MurguiBrenda AcevedoL. Borrás

subject

ChemistryGeneral Chemical Engineering0208 environmental biotechnologyPAO Type IEconomic shortage02 engineering and technologyGeneral Chemistry010501 environmental sciencesPolyphosphate accumulating metabolism (PAM)PAO Type II01 natural sciencesIndustrial and Manufacturing Engineering020801 environmental engineeringAnimal scienceBiochemistryEnhanced biological phosphorus removal (EBPR)Environmental ChemistryGlycogen accumulating metabolism (GAM)Retention timeTECNOLOGIA DEL MEDIO AMBIENTE0105 earth and related environmental sciences

description

[EN] In a previous study the authors confirmed the ability of PAOs to perform GAO metabolism in short-term experiments. However, what happens when PAOs are exposed to poly-P shortage for an extended period of time? The answer to this question was the aim of this work from a macroscopic and microscopic point of view. Therefore, the poly-P was removed from a PAO enriched SBR and maintained without poly-P during five solid retention time. The PAOs were found to quickly change their metabolism to a clear GAO performance and remained without GAO colonization for the entire experimental period, even though GAO was present (around 5%) at the beginning of the experiment. Unlike the results obtained in the short-term experiments, in this case PAO Type I performed the GAO metabolism at the end of the experimental period. (C) 2016 Elsevier B.V. All rights reserved.

yearjournalcountryeditionlanguage
2017-03-01Chemical Engineering Journal
https://doi.org/10.1016/j.cej.2016.11.073