Long term analysis of N2O emission from partial nitritation anammox process under oxygen limitation
| Autor: | Longqi Lang, Mathieu Sebilo, Mansour Bounouba, Simon Dubos, Mathieu Sperandio |
|---|---|
| Přispěvatelé: | Toulouse Biotechnology Institute (TBI), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris ), Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), ANR-15-CE04-0014,N2OTrack,Analyse et réduction des émissions de N2O dans les procédés biologiques de traitement des effluents(2015), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Rok vydání: | 2022 |
| Předmět: |
[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry
Dissolved oxygen [CHIM.POLY]Chemical Sciences/Polymers Environmental Engineering [CHIM.ANAL]Chemical Sciences/Analytical chemistry Renewable Energy Sustainability and the Environment Nitrous oxide PNA Aeration Site preference Bioengineering [CHIM.MATE]Chemical Sciences/Material chemistry Waste Management and Disposal |
| Zdroj: | Bioresource Technology Reports Bioresource Technology Reports, Elsevier, 2022, 20, ⟨10.1016/j.biteb.2022.101224⟩ Bioresource Technology Reports, 2022, 20, ⟨10.1016/j.biteb.2022.101224⟩ |
| ISSN: | 2589-014X |
| DOI: | 10.1016/j.biteb.2022.101224 |
| Popis: | International audience; Partial nitritation with anammox (PNA) process was achieved during 300 days to investigate the fate of N2O and NO. N2O emission factor increased from 0.4 ± 0.1 % up to 6.1 ± 0.3 % during intensification phase of 5 months and progressively stabilized at 2.0 ± 0.1 % after 10 months without any significant emission of NO. The emission of N2O correlated with the ammonium consumption rate and the oxygen transfer rate. Experiment carried out in anoxic condition suggested that heterotrophic denitrification poorly contributed. Measurements of δ15N, δ18O and SP of N2O demonstrated that its production resulted from the reduction of nitrite. The stimulating effect of nitrite on N2O production was demonstrated with specific tests and observed during transient nitrite accumulation periods. This study highlighted the importance of nitrite and oxygen transfer rate control for future control strategies aiming to mitigate N2O emission in PNA system. |
| Databáze: | OpenAIRE |
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