Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewaters
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/30409 |
Resumo: | This work aims to compare the performance of the continuous operation (CO) and intermittent operation (IO) of upflow anaerobic sludge blanket (UASB) reactors for the removal of estrone (E1) and 17α-ethinylestradiol (EE2) from wastewaters. Results suggest that the IO contribute to the improvement of the overall removal of estrogens (above 95% for E1 and EE2) when compared to CO (49% for E1 and 39% for EE2). For both CO and IO, biodegradation was the main removal mechanism for E1, while for EE2, adsorption to sludge was the major removal pathway. Moreover, a higher biodegradation of estrogens was obtained with the IO compared to CO (69.4% vs. 43.3% for E1 and 21.8% vs. 8.0% for EE2). The favourable effect of IO can be justified by effluent recirculation during the feedless period which promotes the adaptation of microbial biomass to estrogens' biodegradation. |
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Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewatersEstrogensRemoval mechanismsBiodegradationAdsorptionIntermittent UASB reactorThis work aims to compare the performance of the continuous operation (CO) and intermittent operation (IO) of upflow anaerobic sludge blanket (UASB) reactors for the removal of estrone (E1) and 17α-ethinylestradiol (EE2) from wastewaters. Results suggest that the IO contribute to the improvement of the overall removal of estrogens (above 95% for E1 and EE2) when compared to CO (49% for E1 and 39% for EE2). For both CO and IO, biodegradation was the main removal mechanism for E1, while for EE2, adsorption to sludge was the major removal pathway. Moreover, a higher biodegradation of estrogens was obtained with the IO compared to CO (69.4% vs. 43.3% for E1 and 21.8% vs. 8.0% for EE2). The favourable effect of IO can be justified by effluent recirculation during the feedless period which promotes the adaptation of microbial biomass to estrogens' biodegradation.Elsevier2023-04-10T00:00:00Z2021-04-10T00:00:00Z2021-04-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/30409eng0048-969710.1016/j.scitotenv.2020.144291Louros, Vitória L.Lima, Diana L. D.Leitão, Jorge H.Esteves, Valdemar I.Nadais, Helena G. A.info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:58:46Zoai:ria.ua.pt:10773/30409Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:02:31.228934Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewaters |
title |
Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewaters |
spellingShingle |
Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewaters Louros, Vitória L. Estrogens Removal mechanisms Biodegradation Adsorption Intermittent UASB reactor |
title_short |
Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewaters |
title_full |
Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewaters |
title_fullStr |
Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewaters |
title_full_unstemmed |
Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewaters |
title_sort |
Impact of UASB reactors operation mode on the removal of estrone and 17α-ethinylestradiol from wastewaters |
author |
Louros, Vitória L. |
author_facet |
Louros, Vitória L. Lima, Diana L. D. Leitão, Jorge H. Esteves, Valdemar I. Nadais, Helena G. A. |
author_role |
author |
author2 |
Lima, Diana L. D. Leitão, Jorge H. Esteves, Valdemar I. Nadais, Helena G. A. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Louros, Vitória L. Lima, Diana L. D. Leitão, Jorge H. Esteves, Valdemar I. Nadais, Helena G. A. |
dc.subject.por.fl_str_mv |
Estrogens Removal mechanisms Biodegradation Adsorption Intermittent UASB reactor |
topic |
Estrogens Removal mechanisms Biodegradation Adsorption Intermittent UASB reactor |
description |
This work aims to compare the performance of the continuous operation (CO) and intermittent operation (IO) of upflow anaerobic sludge blanket (UASB) reactors for the removal of estrone (E1) and 17α-ethinylestradiol (EE2) from wastewaters. Results suggest that the IO contribute to the improvement of the overall removal of estrogens (above 95% for E1 and EE2) when compared to CO (49% for E1 and 39% for EE2). For both CO and IO, biodegradation was the main removal mechanism for E1, while for EE2, adsorption to sludge was the major removal pathway. Moreover, a higher biodegradation of estrogens was obtained with the IO compared to CO (69.4% vs. 43.3% for E1 and 21.8% vs. 8.0% for EE2). The favourable effect of IO can be justified by effluent recirculation during the feedless period which promotes the adaptation of microbial biomass to estrogens' biodegradation. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04-10T00:00:00Z 2021-04-10 2023-04-10T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/30409 |
url |
http://hdl.handle.net/10773/30409 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0048-9697 10.1016/j.scitotenv.2020.144291 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137680838098944 |