New insights in the metabolic behaviour of PAO under negligible poly-P reserves
[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 microscop...
| Autores: | , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Recursos: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/148520 |
| Acesso em linha: | https://riunet.upv.es/handle/10251/148520 |
| Access Level: | acceso abierto |
| Palavra-chave: | Polyphosphate accumulating metabolism (PAM) Glycogen accumulating metabolism (GAM) Enhanced biological phosphorus removal (EBPR) PAO Type I PAO Type II TECNOLOGIA DEL MEDIO AMBIENTE |
| Resumo: | [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. |
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