Assessment methodology of backwash in pressurized sand filters
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/30297 |
Resumo: | The objective of this study was to apply a methodology based on sampling sand from contaminated filter beds, to evaluate the performance of the backwash process in pressurized sand filters used in irrigation. Backwash trials were conducted in an experimental module with three new sand filters of the same commercial model. The evaluations were conducted after filtration processes performed using four filtration rates and three separate sand particle sizes (fine - 0.55 mm; medium - 0.77 mm, and coarse sand - 1.04 mm diameter), repeated in three subsequent cycles. After reaching a fixed expansion of 25% of the filter bed height, the backwash processes were performed for 15 min. Backwash cleaning efficiency was evaluated in all trials based on the mass of removed solids for different filter bed layers and throughout the entire filter bed. The backwash assessment methodology is effective and has potential to be a practical tool for farmers in the evaluation of the performance of pressurized sand filters used in irrigation. |
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Assessment methodology of backwash in pressurized sand filtersMetodologia de avaliação do processo de retrolavagem em filtros de areia pressurizadosLocalized irrigationWater treatmentEmitters cloggingIrrigação localizadaTratamento da águaEntupimento de emissoresThe objective of this study was to apply a methodology based on sampling sand from contaminated filter beds, to evaluate the performance of the backwash process in pressurized sand filters used in irrigation. Backwash trials were conducted in an experimental module with three new sand filters of the same commercial model. The evaluations were conducted after filtration processes performed using four filtration rates and three separate sand particle sizes (fine - 0.55 mm; medium - 0.77 mm, and coarse sand - 1.04 mm diameter), repeated in three subsequent cycles. After reaching a fixed expansion of 25% of the filter bed height, the backwash processes were performed for 15 min. Backwash cleaning efficiency was evaluated in all trials based on the mass of removed solids for different filter bed layers and throughout the entire filter bed. The backwash assessment methodology is effective and has potential to be a practical tool for farmers in the evaluation of the performance of pressurized sand filters used in irrigation.Propôs-se, neste trabalho, aplicar uma metodologia baseada em amostragens de areia de leitos filtrantes contaminados para avaliar o desempenho do processo de retrolavagem em filtros de areia pressurizados utilizados na irrigação. Os ensaios de retrolavagem foram conduzidos em um módulo experimental constituído de três filtros novos de areia e de um mesmo modelo comercial. As avaliações foram conduzidas após processos de filtração realizados com o emprego de quatro taxas de filtração em três granulometrias de areia, separadamente (areia fina, 0,55 mm; média, 0,77 mm e grossa, 1,04 mm de diâmetro) repetidos em três ciclos de filtração subsequentes; após atingir uma expansão fixa de 25% da altura leito filtrante, as retrolavagens foram processadas por 15 min; a eficiência de limpeza da retrolavagem foi avaliada em todos os ensaios a partir da massa de sólidos removidos para as diferentes camadas do leito filtrante e para a camada, por inteiro. A metodologia de avaliação do processo de retrolavagem é eficaz e possui potencial para ser uma ferramenta prática para o agricultor na avaliação do desempenho de filtros de areia pressurizados utilizados na irrigação.Departamento de Engenharia Agrícola - UFCG2018-08-30T18:44:59Z2018-08-30T18:44:59Z2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfDEUS, F. P. de; TESTEZLAF, R.; MESQUITA, M. Assessment methodology of backwash in pressurized sand filters. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 20, n. 7, p. 600-605, 2016.http://repositorio.ufla.br/jspui/handle/1/30297Revista Brasileira de Engenharia Agrícola e Ambientalreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessDeus, Fábio P. deTestezlaf, RobertoMesquita, Marcioeng2023-05-02T18:18:04Zoai:localhost:1/30297Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-02T18:18:04Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Assessment methodology of backwash in pressurized sand filters Metodologia de avaliação do processo de retrolavagem em filtros de areia pressurizados |
title |
Assessment methodology of backwash in pressurized sand filters |
spellingShingle |
Assessment methodology of backwash in pressurized sand filters Deus, Fábio P. de Localized irrigation Water treatment Emitters clogging Irrigação localizada Tratamento da água Entupimento de emissores |
title_short |
Assessment methodology of backwash in pressurized sand filters |
title_full |
Assessment methodology of backwash in pressurized sand filters |
title_fullStr |
Assessment methodology of backwash in pressurized sand filters |
title_full_unstemmed |
Assessment methodology of backwash in pressurized sand filters |
title_sort |
Assessment methodology of backwash in pressurized sand filters |
author |
Deus, Fábio P. de |
author_facet |
Deus, Fábio P. de Testezlaf, Roberto Mesquita, Marcio |
author_role |
author |
author2 |
Testezlaf, Roberto Mesquita, Marcio |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Deus, Fábio P. de Testezlaf, Roberto Mesquita, Marcio |
dc.subject.por.fl_str_mv |
Localized irrigation Water treatment Emitters clogging Irrigação localizada Tratamento da água Entupimento de emissores |
topic |
Localized irrigation Water treatment Emitters clogging Irrigação localizada Tratamento da água Entupimento de emissores |
description |
The objective of this study was to apply a methodology based on sampling sand from contaminated filter beds, to evaluate the performance of the backwash process in pressurized sand filters used in irrigation. Backwash trials were conducted in an experimental module with three new sand filters of the same commercial model. The evaluations were conducted after filtration processes performed using four filtration rates and three separate sand particle sizes (fine - 0.55 mm; medium - 0.77 mm, and coarse sand - 1.04 mm diameter), repeated in three subsequent cycles. After reaching a fixed expansion of 25% of the filter bed height, the backwash processes were performed for 15 min. Backwash cleaning efficiency was evaluated in all trials based on the mass of removed solids for different filter bed layers and throughout the entire filter bed. The backwash assessment methodology is effective and has potential to be a practical tool for farmers in the evaluation of the performance of pressurized sand filters used in irrigation. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2018-08-30T18:44:59Z 2018-08-30T18:44:59Z |
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 |
DEUS, F. P. de; TESTEZLAF, R.; MESQUITA, M. Assessment methodology of backwash in pressurized sand filters. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 20, n. 7, p. 600-605, 2016. http://repositorio.ufla.br/jspui/handle/1/30297 |
identifier_str_mv |
DEUS, F. P. de; TESTEZLAF, R.; MESQUITA, M. Assessment methodology of backwash in pressurized sand filters. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 20, n. 7, p. 600-605, 2016. |
url |
http://repositorio.ufla.br/jspui/handle/1/30297 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Departamento de Engenharia Agrícola - UFCG |
publisher.none.fl_str_mv |
Departamento de Engenharia Agrícola - UFCG |
dc.source.none.fl_str_mv |
Revista Brasileira de Engenharia Agrícola e Ambiental reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835202481815552 |