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Recirculating packed-bed biofilm photobioreactor combined with membrane ultrafiltration as advanced wastewater treatment
Packed-bed biofilm photobioreactor combined with ultrafiltration membrane was investigated for intensifying the process for secondary wastewater effluent treatment. Cylindrical glass carriers were used as supporting material for the microalgal-bacterial biofilm, which developed from indigenous micro...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10239383/ https://www.ncbi.nlm.nih.gov/pubmed/37140860 http://dx.doi.org/10.1007/s11356-023-27309-2 |
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author | Díaz, Oliver González, Enrique Vera, Luisa Fernández, Luis Javier Díaz-Marrero, Ana R. Fernández, José J. |
author_facet | Díaz, Oliver González, Enrique Vera, Luisa Fernández, Luis Javier Díaz-Marrero, Ana R. Fernández, José J. |
author_sort | Díaz, Oliver |
collection | PubMed |
description | Packed-bed biofilm photobioreactor combined with ultrafiltration membrane was investigated for intensifying the process for secondary wastewater effluent treatment. Cylindrical glass carriers were used as supporting material for the microalgal-bacterial biofilm, which developed from indigenous microbial consortium. Glass carriers allowed adequate growth of the biofilm with limited suspended biomass. Stable operation was achieved after a start-up period of 1000 h, where supernatant biopolymer clusters were minimized and complete nitrification was observed. After that time, biomass productivity was 54 ± 18 mg·L(−1)·day(−1). Green microalgae Tetradesmus obliquus and several strains of heterotrophic nitrification–aerobic denitrification bacteria and fungi were identified. Combined process exhibited COD, nitrogen and phosphorus removal rates of 56 ± 5%, 12 ± 2% and 20 ± 6%, respectively. Membrane fouling was mainly caused by biofilm formation, which was not effectively mitigated by air-scouring aided backwashing. |
format | Online Article Text |
id | pubmed-10239383 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-102393832023-06-05 Recirculating packed-bed biofilm photobioreactor combined with membrane ultrafiltration as advanced wastewater treatment Díaz, Oliver González, Enrique Vera, Luisa Fernández, Luis Javier Díaz-Marrero, Ana R. Fernández, José J. Environ Sci Pollut Res Int Research Article Packed-bed biofilm photobioreactor combined with ultrafiltration membrane was investigated for intensifying the process for secondary wastewater effluent treatment. Cylindrical glass carriers were used as supporting material for the microalgal-bacterial biofilm, which developed from indigenous microbial consortium. Glass carriers allowed adequate growth of the biofilm with limited suspended biomass. Stable operation was achieved after a start-up period of 1000 h, where supernatant biopolymer clusters were minimized and complete nitrification was observed. After that time, biomass productivity was 54 ± 18 mg·L(−1)·day(−1). Green microalgae Tetradesmus obliquus and several strains of heterotrophic nitrification–aerobic denitrification bacteria and fungi were identified. Combined process exhibited COD, nitrogen and phosphorus removal rates of 56 ± 5%, 12 ± 2% and 20 ± 6%, respectively. Membrane fouling was mainly caused by biofilm formation, which was not effectively mitigated by air-scouring aided backwashing. Springer Berlin Heidelberg 2023-05-04 2023 /pmc/articles/PMC10239383/ /pubmed/37140860 http://dx.doi.org/10.1007/s11356-023-27309-2 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Research Article Díaz, Oliver González, Enrique Vera, Luisa Fernández, Luis Javier Díaz-Marrero, Ana R. Fernández, José J. Recirculating packed-bed biofilm photobioreactor combined with membrane ultrafiltration as advanced wastewater treatment |
title | Recirculating packed-bed biofilm photobioreactor combined with membrane ultrafiltration as advanced wastewater treatment |
title_full | Recirculating packed-bed biofilm photobioreactor combined with membrane ultrafiltration as advanced wastewater treatment |
title_fullStr | Recirculating packed-bed biofilm photobioreactor combined with membrane ultrafiltration as advanced wastewater treatment |
title_full_unstemmed | Recirculating packed-bed biofilm photobioreactor combined with membrane ultrafiltration as advanced wastewater treatment |
title_short | Recirculating packed-bed biofilm photobioreactor combined with membrane ultrafiltration as advanced wastewater treatment |
title_sort | recirculating packed-bed biofilm photobioreactor combined with membrane ultrafiltration as advanced wastewater treatment |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10239383/ https://www.ncbi.nlm.nih.gov/pubmed/37140860 http://dx.doi.org/10.1007/s11356-023-27309-2 |
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