| Registro completo |
| Provedor de dados: |
CIGR Journal
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| País: |
China
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| Título: |
Backwash process in a sand filter prototype used in irrigation
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| Autores: |
Cândido de Souza, Álvaro Henrique
Seron, Cássio de Castro
Lorenzoni, Marcelo Zolin
de Deus, Fábio Ponciano
Rezende, Roberto
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| Data: |
2019-04-30
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| Ano: |
2019
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| Palavras-chave: |
Water treatment
Irrigation
Fertigation
Irrigation water treatment
Superficial velocity
Sand particle sizes
Filter bed layer
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| Resumo: |
Backwash process of sand filters requests specific surface velocity to reach the recommended filter bed height expansion, however the expansion of the filter bed height is very influenced by their characteristics. This work had as aim to evaluate the effect of different sand particle size, static filter bed layer and expansion of the filter bed height on a prototype of sand filter during backwash process. The tests were accomplished using a sand filter prototype that had structural similarity and shape as commercial equipments (24 cm of height and 12.7 cm of diameter). The treatments consisted from combinations of five separate sand particle sizes (0.15; 0.33; 0.51; 0.72 e 0.92 mm of medium diameter), five static filter bed layer (5; 7; 9; 11 and 13 cm) and different expansion of the filter bed height, with three replications. In general, the sand filter prototype was effective in characterizing with accuracy the backwash process, being possible using to obtain superficial velocity to reach specific filter bed height expansion using different sand particle sizes and static filter bed layer.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.cigrjournal.org/index.php/Ejounral/article/view/4910
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| Editor: |
International Commission of Agricultural and Biosystems Engineering
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| Relação: |
http://www.cigrjournal.org/index.php/Ejounral/article/view/4910/2917
http://www.cigrjournal.org/index.php/Ejounral/article/downloadSuppFile/4910/2192
http://www.cigrjournal.org/index.php/Ejounral/article/downloadSuppFile/4910/2193
http://www.cigrjournal.org/index.php/Ejounral/article/downloadSuppFile/4910/2194
http://www.cigrjournal.org/index.php/Ejounral/article/downloadSuppFile/4910/2195
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| Formato: |
application/pdf
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| Fonte: |
Agricultural Engineering International: CIGR Journal; Vol 21, No 1 (2019): CIGR Journal; 109-114
1682-1130
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| Direitos: |
Copyright (c) 2019 Agricultural Engineering International: CIGR Journal
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