Evaluation of the effects of drainage and different rest periods as techniques for unclogging the porous medium in horizontal subsurface flow constructed wetlands

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorTeixeira, Denis Leocádio-
Autor(es): dc.creatorMatos, Antonio Teixeira de-
Autor(es): dc.creatorMatos, Mateus Pimentel de-
Autor(es): dc.creatorMiranda, Suymara Toledo-
Autor(es): dc.creatorVieira, Delilah Pires-
Data de aceite: dc.date.accessioned2026-02-09T12:43:57Z-
Data de disponibilização: dc.date.available2026-02-09T12:43:57Z-
Data de envio: dc.date.issued2019-06-03-
Data de envio: dc.date.issued2019-06-03-
Data de envio: dc.date.issued2018-09-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/34580-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0925857418302052#!-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1167174-
Descrição: dc.descriptionThe development of easy-to-perform techniques for unclogging of horizontal subsurface flow constructed wetlands (HSSF-CW) is essential to make them operationally simpler and increase their useful life. The objective of this work was to evaluate the drainable porosity, the extension of the bed presenting surface runoff and the characterization and quantification of the constituent solids clogging the porous medium of the HSSF-CW, after they were drained and submitted to different rest periods. Three systems were evaluated measuring 1.0 m wide and 4.0 m long, with 0.25 m working depth; one was cultivated with Vetiver grass (Chrysopogon zizanioides), the other with Tifton 85 (Cynodon spp.) and a control, in which no plant species were cultivated, where all were used for the treatment of municipal wastewater and presented conditions of partially clogged porous medium. After drainage of the system, the drainable porosity of the porous medium increased exponentially with the rest time during which they remained unsaturated, where the control and the HSSF-CW cultivated with Tifton 85 grass tended to stabilize. There was an increase in porosity of 18, 19 and 39% in relative to the initial porosity for the control HSSF-CW and those cultivated with the Tifton 85 and Vetiver grasses, respectively. Surface runoff in the HSSF-CW bed stopped completely between the 7th and 13th days after draining. However, no change was observed in the volatile solids content in the clogging material of the porous medium due to drainage of the HSSF-CWs.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceEcological Engineering-
Palavras-chave: dc.subjectWastewater treatment-
Palavras-chave: dc.subjectRemediation of clogging-
Palavras-chave: dc.subjectDrainable porosity-
Palavras-chave: dc.subjectSurface runoff-
Palavras-chave: dc.subjectVolatile solids-
Palavras-chave: dc.subjectTratamento de águas residuais-
Palavras-chave: dc.subjectRemediação de entupimento-
Palavras-chave: dc.subjectPorosidade drenável-
Palavras-chave: dc.subjectEscoamento superficial-
Palavras-chave: dc.subjectSólidos voláteis-
Título: dc.titleEvaluation of the effects of drainage and different rest periods as techniques for unclogging the porous medium in horizontal subsurface flow constructed wetlands-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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