Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment
Autor(a) principal: | |
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Data de Publicação: | 2013 |
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/10174/9901 https://doi.org/10.1016/j.scitotenv.2013.06.052 |
Resumo: | Constructed wetlands (CWs) are receiving a renewed attention as a viable phytotechnology for treating agricultural wastewaters and for the removal of more specific pollutants, in particular recalcitrant ones. In this work, the performance of CW mesocosms using light expanded clay aggregates (LECA) as the bed's substrate and planted with Phragmites australis was investigated for treatment of olive mill wastewater (OMW), swine wastewater (SW) contaminated with oxytetracycline and water contaminated with herbicide MCPA (2-methyl-4-chlorophenoxyacetic acid). Both wastewaters (OMW and SW) initially presented high organic matter content and total suspended solids which were removed by the system with efficiencies higher than 80%. Removal of polyphenols in OMW and nitrogen compounds in SW also showed similar or higher efficiencies in comparison with other treatment systems reported in the literature. The antibiotic oxytetracycline was completely removed from SW within the assay period in unplanted LECA beds, but planted beds allowed a significantly faster removal. In regard to water contaminated with MCPA, the results showed that LECA has a large sorption capacity for this herbicide (removal efficiencies of 56-97%). In general, considerably higher pollutant removal efficiencies were obtained when plants were used (up to 28% higher). The results obtained are indicative that CWs with LECA as substrate may be an adequate option for agricultural wastewater treatment. |
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Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatmentLECAMCPAolive mill wastewateroxytetracyclinePhragmitesswine wastewaterConstructed wetlands (CWs) are receiving a renewed attention as a viable phytotechnology for treating agricultural wastewaters and for the removal of more specific pollutants, in particular recalcitrant ones. In this work, the performance of CW mesocosms using light expanded clay aggregates (LECA) as the bed's substrate and planted with Phragmites australis was investigated for treatment of olive mill wastewater (OMW), swine wastewater (SW) contaminated with oxytetracycline and water contaminated with herbicide MCPA (2-methyl-4-chlorophenoxyacetic acid). Both wastewaters (OMW and SW) initially presented high organic matter content and total suspended solids which were removed by the system with efficiencies higher than 80%. Removal of polyphenols in OMW and nitrogen compounds in SW also showed similar or higher efficiencies in comparison with other treatment systems reported in the literature. The antibiotic oxytetracycline was completely removed from SW within the assay period in unplanted LECA beds, but planted beds allowed a significantly faster removal. In regard to water contaminated with MCPA, the results showed that LECA has a large sorption capacity for this herbicide (removal efficiencies of 56-97%). In general, considerably higher pollutant removal efficiencies were obtained when plants were used (up to 28% higher). The results obtained are indicative that CWs with LECA as substrate may be an adequate option for agricultural wastewater treatment.2014-01-22T17:04:52Z2014-01-222013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/9901http://hdl.handle.net/10174/9901https://doi.org/10.1016/j.scitotenv.2013.06.052engDordio, Ana V.; Carvalho, Alfredo Jorge Palace. Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment, Science of The Total Environment 463, 454-461 (2013).ndnd253Dordio, Ana V.Carvalho, Alfredo Jorge Palaceinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T18:52:14Zoai:dspace.uevora.pt:10174/9901Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:03:52.930032Repositório 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 |
Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment |
title |
Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment |
spellingShingle |
Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment Dordio, Ana V. LECA MCPA olive mill wastewater oxytetracycline Phragmites swine wastewater |
title_short |
Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment |
title_full |
Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment |
title_fullStr |
Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment |
title_full_unstemmed |
Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment |
title_sort |
Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment |
author |
Dordio, Ana V. |
author_facet |
Dordio, Ana V. Carvalho, Alfredo Jorge Palace |
author_role |
author |
author2 |
Carvalho, Alfredo Jorge Palace |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Dordio, Ana V. Carvalho, Alfredo Jorge Palace |
dc.subject.por.fl_str_mv |
LECA MCPA olive mill wastewater oxytetracycline Phragmites swine wastewater |
topic |
LECA MCPA olive mill wastewater oxytetracycline Phragmites swine wastewater |
description |
Constructed wetlands (CWs) are receiving a renewed attention as a viable phytotechnology for treating agricultural wastewaters and for the removal of more specific pollutants, in particular recalcitrant ones. In this work, the performance of CW mesocosms using light expanded clay aggregates (LECA) as the bed's substrate and planted with Phragmites australis was investigated for treatment of olive mill wastewater (OMW), swine wastewater (SW) contaminated with oxytetracycline and water contaminated with herbicide MCPA (2-methyl-4-chlorophenoxyacetic acid). Both wastewaters (OMW and SW) initially presented high organic matter content and total suspended solids which were removed by the system with efficiencies higher than 80%. Removal of polyphenols in OMW and nitrogen compounds in SW also showed similar or higher efficiencies in comparison with other treatment systems reported in the literature. The antibiotic oxytetracycline was completely removed from SW within the assay period in unplanted LECA beds, but planted beds allowed a significantly faster removal. In regard to water contaminated with MCPA, the results showed that LECA has a large sorption capacity for this herbicide (removal efficiencies of 56-97%). In general, considerably higher pollutant removal efficiencies were obtained when plants were used (up to 28% higher). The results obtained are indicative that CWs with LECA as substrate may be an adequate option for agricultural wastewater treatment. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01T00:00:00Z 2014-01-22T17:04:52Z 2014-01-22 |
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/10174/9901 http://hdl.handle.net/10174/9901 https://doi.org/10.1016/j.scitotenv.2013.06.052 |
url |
http://hdl.handle.net/10174/9901 https://doi.org/10.1016/j.scitotenv.2013.06.052 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Dordio, Ana V.; Carvalho, Alfredo Jorge Palace. Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment, Science of The Total Environment 463, 454-461 (2013). nd nd 253 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
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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1799136522374479872 |