Data/hora: 13/06/2024 21:22:59

Provedor de dados: | 111
País: | China
Título: | Backwash process in a sand filter prototype used in irrigation
Autores: | Cândido de Souza, Álvaro Henrique; Seron, Cássio de Castro; Lorenzoni, Marcelo Zolin; de Deus, Fábio Ponciano; Rezende, Roberto.
Data: | 2019-04-30
Ano: | 2019
Palavras-chave: | Water treatment; Irrigation; Fertigation; Irrigation water treatment; Superficial velocity; Sand particle sizes; Filter bed layer.
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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.cigrjournal.org/index.php/Ejounral/article/view/4910
Editor: | International Commission of Agricultural and Biosystems Engineering

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

Formato: | application/pdf

Fonte:

Agricultural Engineering International: CIGR Journal; Vol 21, No 1 (2019): CIGR Journal; 109-114

1682-1130

Fonte: | Copyright (c) 2019 Agricultural Engineering International: CIGR Journal