Data/hora: 09/06/2024 06:28:56

Provedor de dados: | 65
País: | Brazil
Título: | Non-pressure compensating emitters using treated sewage effluent for irrigation
Autores: | Fischer Filho,João Alberto; Dalri,Alexandre Barcellos; Santos,Miquéias Gomes dos; Zanini,José Renato; Faria,Rogério Teixeira de.
Data: | 2017-01-01
Ano: | 2017
Palavras-chave: | Wastewater; Trickle irrigation; Clogging; Water saving.
Resumo: | ABSTRACT: This study aimed to evaluate the obstruction of non-pressure compensating emitters using treated sewage effluent (TSE) for irrigation. A drip irrigation system with six models of emitters (encoded) was installed in level field conditions. TSE coming from a sewage treatment station was used as irrigation water after being filtered through a disc filter (120 mesh). Seven flow rate evaluations of drippers operating at 100kPa were performed (0, 100, 200, 300, 400, 500 and 600h of operation). The experimental design was randomized in a 6×7 factorial arrangement (6 models and 7 times), with four repetitions, and Tukey’s test was used to compare means. Relative flow rate (Qr), the flow rate coefficient of variation (CVQ) and degree of clogging (GE) were determined. There was a reduction in flow rate in five dripper models, which are susceptible to clogging. The model with rated flow stood out against the others, showing a Qr of 100.52%, CVQ of 2.76% and GE of 0.49%. The use of TSE changed the Qr of the drippers after 600h of operation.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700351
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20151605
Formato: | text/html
Fonte: | Ciência Rural  v.47 n.7 2017
Fonte: | info:eu-repo/semantics/openAccess