| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Importance of ecological interactions during wastewater treatment using High Rate Algal Ponds under different temperate climates
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| Autores: |
Galès, Amandine
Bonnafous, Anaïs
Carré, Claire
Jauzein, Vincent
Lanouguère, Elodie
Le Floc'H, Emilie
Pinoit, Joanna
Poullain, Clothilde
Roques, Cécile
Sialve, Bruno
Simier, Monique
Steyer, Jean-philippe
Fouilland, Eric
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| Data: |
2019-06
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| Ano: |
2019
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| Palavras-chave: |
Microalgae
Predators
Bacteria
Urban effluents
Ammonia and phosphate removal
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| Resumo: |
Several studies focused on wastewater treatment in High Rate Algal Ponds (HRAP) suggest that highly variable climatic conditions cause large variations of microalgal biomass productivity. In the present study, we show that similar carbon, nitrogen and phosphorus removal efficiencies were reached in different HRAPs treating urban wastewaters located in two different temperate (Mediterranean and oceanic) climates. Furthermore, similar ecological successions were observed in these HRAPs. During the start-up phase, the consumption of organic matter by detritivores, already present in the wastewater, appears to be necessary for the microalgae to grow within two weeks in spring. The growth of the rapid-growing species, Chlorella sp., followed by the grazing-resilient species, Scenedesmus sp., combined with nitrifying and denitrifying bacterial activity, removed most the ammonia. The resulting exhaustion of ammonia would limit the complete removal of dissolved COD by bacteria and phosphate by microalgae in the HRAPs. This study shows that similar biological and environmental constraints were applied on the HRAPs, making the process efficiency highly reproducible under different temperate latitudes.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00490/60210/63713.pdf
DOI:10.1016/j.algal.2019.101508
https://archimer.ifremer.fr/doc/00490/60210/
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| Editor: |
Elsevier BV
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| Formato: |
application/pdf
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| Fonte: |
Algal Research-biomass Biofuels And Bioproducts (2211-9264) (Elsevier BV), 2019-06 , Vol. 40 , P. 101508 (9p.)
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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