Effectiveness and temporal variation of a full-scale horizontal constructed wetland in reducing nitrogen and phosphorus from domestic wastewater

Detalhes bibliográficos
Autor(a) principal: Mesquita, Conceição
Data de Publicação: 2018
Outros Autores: Albuquerque, António, Amaral, Leonor, Nogueira, Regina
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/164898
Resumo: Publisher Copyright: © 2018 by the authors. Licensee MDPI, Basel, Switzerland.
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spelling Effectiveness and temporal variation of a full-scale horizontal constructed wetland in reducing nitrogen and phosphorus from domestic wastewaterConstructed wetlandHorizontal subsurfaceNitrogenPhosphorousRemoval efficiencySeasonal variationsChemical Engineering(all)Engineering(all)Energy(all)SDG 6 - Clean Water and SanitationPublisher Copyright: © 2018 by the authors. Licensee MDPI, Basel, Switzerland.Cultural eutrophication stimulated by anthropogenic-derived nutrients represents one of most widespread water quality problems worldwide. Constructed wetlands (CWs) have emerged as an aesthetic, sustainable form of wastewater treatment, but, although they have shown adequate levels of organic matter removal in wastewaters, the effectiveness of nutrient removal has been less successful. An eleven-month monitoring program was undertaken in a horizontal subsurface flow CW (HSSF-CW) treating domestic wastewater from a village in Centre Region of Portugal, to evaluate the influence of climatic conditions (Continental-Mediterranean Climate region) and seasonal variations on removal. This CW uses gravel and sand as substrate and Phragmites australis as wetland plants. Samples were collected at the inlet and outlet from wetland bed and analyzed for pH, TN, Org-N, NH4+-N, NOx-N, TP and DP. The removal efficiencies (RE) of nitrogen and phosphorus compounds were relatively poor, but the results allow us to conclude that season had a significant (p < 0.05) effect on the RE of TN, NH4+-N, NOx-N, TP and DP, with higher values in warmest period (10.4%, 10.4%, 3.4%, 27.5% and 26.1%, respectively) than in coldest period (0%, −7.7%, −9.8%, 12.9% and 0%, respectively). Although lower hydraulic loading rate (HLR) generally resulted in better RE of all N and P compounds analyzed, no significant linear relationship was observed between these two variables. TN and NH4+-N concentrations in the effluent tend to significantly (p < 0.05) decrease with increasing respective incoming mass load rates for whole monitoring period and during spring–summer period, while the correlation between outlet TP concentrations and the inlet loading rate are not significant. The results indicate that the system is not effective for removal of nutrients, probably because it operated on overload and with a low hydraulic retention time (HRT) (average = 2.4 days). The results also showed that the RE of N and P followed seasonal trends, with higher values during spring–summer period.DCEA - Departamento de Ciências e Engenharia do AmbienteRUNMesquita, ConceiçãoAlbuquerque, AntónioAmaral, LeonorNogueira, Regina2024-03-13T23:57:42Z2018-01-052018-01-05T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14application/pdfhttp://hdl.handle.net/10362/164898eng2305-7084PURE: 84868376https://doi.org/10.3390/chemengineering2010003info: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:RCAAP2024-03-18T01:47:17Zoai:run.unl.pt:10362/164898Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T04:02:03.922168Repositório 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 Effectiveness and temporal variation of a full-scale horizontal constructed wetland in reducing nitrogen and phosphorus from domestic wastewater
title Effectiveness and temporal variation of a full-scale horizontal constructed wetland in reducing nitrogen and phosphorus from domestic wastewater
spellingShingle Effectiveness and temporal variation of a full-scale horizontal constructed wetland in reducing nitrogen and phosphorus from domestic wastewater
Mesquita, Conceição
Constructed wetland
Horizontal subsurface
Nitrogen
Phosphorous
Removal efficiency
Seasonal variations
Chemical Engineering(all)
Engineering(all)
Energy(all)
SDG 6 - Clean Water and Sanitation
title_short Effectiveness and temporal variation of a full-scale horizontal constructed wetland in reducing nitrogen and phosphorus from domestic wastewater
title_full Effectiveness and temporal variation of a full-scale horizontal constructed wetland in reducing nitrogen and phosphorus from domestic wastewater
title_fullStr Effectiveness and temporal variation of a full-scale horizontal constructed wetland in reducing nitrogen and phosphorus from domestic wastewater
title_full_unstemmed Effectiveness and temporal variation of a full-scale horizontal constructed wetland in reducing nitrogen and phosphorus from domestic wastewater
title_sort Effectiveness and temporal variation of a full-scale horizontal constructed wetland in reducing nitrogen and phosphorus from domestic wastewater
author Mesquita, Conceição
author_facet Mesquita, Conceição
Albuquerque, António
Amaral, Leonor
Nogueira, Regina
author_role author
author2 Albuquerque, António
Amaral, Leonor
Nogueira, Regina
author2_role author
author
author
dc.contributor.none.fl_str_mv DCEA - Departamento de Ciências e Engenharia do Ambiente
RUN
dc.contributor.author.fl_str_mv Mesquita, Conceição
Albuquerque, António
Amaral, Leonor
Nogueira, Regina
dc.subject.por.fl_str_mv Constructed wetland
Horizontal subsurface
Nitrogen
Phosphorous
Removal efficiency
Seasonal variations
Chemical Engineering(all)
Engineering(all)
Energy(all)
SDG 6 - Clean Water and Sanitation
topic Constructed wetland
Horizontal subsurface
Nitrogen
Phosphorous
Removal efficiency
Seasonal variations
Chemical Engineering(all)
Engineering(all)
Energy(all)
SDG 6 - Clean Water and Sanitation
description Publisher Copyright: © 2018 by the authors. Licensee MDPI, Basel, Switzerland.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-05
2018-01-05T00:00:00Z
2024-03-13T23:57:42Z
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/10362/164898
url http://hdl.handle.net/10362/164898
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2305-7084
PURE: 84868376
https://doi.org/10.3390/chemengineering2010003
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14
application/pdf
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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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