Treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption
The low tolerance of marine microalgae to ammonium and hyposalinity limits their use in urban wastewater (UWW) treatments. In this study, using the marine microalga Amphidinium carterae, it is demonstrated for the first time that this obstacle can be overcome by introducing a zeolite-based adsorptio...
| Main Authors: | , , , , , , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
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Elsevier
2024
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10835/15221 https://doi.org/10.1016/j.biortech.2022.127490 |
| _version_ | 1789406320491757568 |
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| author | López Rosales, Lorenzo López-García, P. Benyachou, M.A. Molina Miras, Alejandro Gallardo Rodríguez, Juan José Cerón García, María Del Carmen Sánchez Mirón, Asterio García Camacho, Francisco |
| author_facet | López Rosales, Lorenzo López-García, P. Benyachou, M.A. Molina Miras, Alejandro Gallardo Rodríguez, Juan José Cerón García, María Del Carmen Sánchez Mirón, Asterio García Camacho, Francisco |
| author_sort | López Rosales, Lorenzo |
| collection | DSpace |
| description | The low tolerance of marine microalgae to ammonium and hyposalinity limits their use in urban wastewater (UWW) treatments. In this study, using the marine microalga Amphidinium carterae, it is demonstrated for the first time that this obstacle can be overcome by introducing a zeolite-based adsorption step to obtain a tolerable UWW stream. The maximum ammonium adsorption capacities measured in the natural zeolite used are among the highest reported. The microalga grows satisfactorily in mixtures of zeolite-treated UWW and seawater at a wide range of proportions, both with and without adjusting the salinity, as long as the ammonium concentration is below the threshold tolerated by the microalgae (6.3 mg L−1). A proof of concept performed in 10-L bubble column photobioreactors with different culture strategies, including medium recycling, showed an enhanced biomass yield relative to a control with no UWW. No noticeable effect was observed on the production of specialty metabolites. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-15221 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2024 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-152212024-01-17T11:23:59Z Treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption López Rosales, Lorenzo López-García, P. Benyachou, M.A. Molina Miras, Alejandro Gallardo Rodríguez, Juan José Cerón García, María Del Carmen Sánchez Mirón, Asterio García Camacho, Francisco Zeolite Microalga Wastewater treatment Ammonium Adsorption Photobioreactor The low tolerance of marine microalgae to ammonium and hyposalinity limits their use in urban wastewater (UWW) treatments. In this study, using the marine microalga Amphidinium carterae, it is demonstrated for the first time that this obstacle can be overcome by introducing a zeolite-based adsorption step to obtain a tolerable UWW stream. The maximum ammonium adsorption capacities measured in the natural zeolite used are among the highest reported. The microalga grows satisfactorily in mixtures of zeolite-treated UWW and seawater at a wide range of proportions, both with and without adjusting the salinity, as long as the ammonium concentration is below the threshold tolerated by the microalgae (6.3 mg L−1). A proof of concept performed in 10-L bubble column photobioreactors with different culture strategies, including medium recycling, showed an enhanced biomass yield relative to a control with no UWW. No noticeable effect was observed on the production of specialty metabolites. 2024-01-17T11:23:58Z 2024-01-17T11:23:58Z 2022-06-22 info:eu-repo/semantics/article López-Rosales, L., López-García, P., Benyachou, M. A., Molina-Miras, A., Gallardo-Rodríguez, J. J., Cerón-García, M. C., ... & García-Camacho, F. (2022). Treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption. Bioresource Technology, 359, 127490. 0960-8524 http://hdl.handle.net/10835/15221 https://doi.org/10.1016/j.biortech.2022.127490 en https://www.sciencedirect.com/science/article/pii/S0960852422008197 info:eu-repo/semantics/openAccess Elsevier |
| spellingShingle | Zeolite Microalga Wastewater treatment Ammonium Adsorption Photobioreactor López Rosales, Lorenzo López-García, P. Benyachou, M.A. Molina Miras, Alejandro Gallardo Rodríguez, Juan José Cerón García, María Del Carmen Sánchez Mirón, Asterio García Camacho, Francisco Treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption |
| title | Treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption |
| title_full | Treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption |
| title_fullStr | Treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption |
| title_full_unstemmed | Treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption |
| title_short | Treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption |
| title_sort | treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption |
| topic | Zeolite Microalga Wastewater treatment Ammonium Adsorption Photobioreactor |
| url | http://hdl.handle.net/10835/15221 https://doi.org/10.1016/j.biortech.2022.127490 |
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