Performance of drippers in two filtering systems using sewage treatment effluent/Desempenho de gotejadores sob dois sistemas de filtragem utilizando efluente de tratamento esgoto
The objective of this study was to evaluate the performance of three models of drippers using treated sewage effluent, pure and diluted, and two types of filters, screen and disc. The treated sewage effluent used in the experiment was collected from the city's treatment plant. The experiment in...
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Veröffentlicht in: | Revista brasileira de engenharia agrícola e ambiental 2017-06, Vol.21 (6), p.363 |
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Sprache: | spa |
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Zusammenfassung: | The objective of this study was to evaluate the performance of three models of drippers using treated sewage effluent, pure and diluted, and two types of filters, screen and disc. The treated sewage effluent used in the experiment was collected from the city's treatment plant. The experiment included 12 lateral lines with three types of emitters to apply pure (100%) and diluted (50%) effluent filtered by screen and disc filters. The combination of those factors set the treatments: T1 (50% effluent diluted in fresh water filtered by a screen filter); T2 (50% effluent diluted in fresh water filtered by a disc filter); T3 (pure effluent filtered by a screen filter); T4 (pure effluent filtered by a disc filter). The results showed that the flat type emitter is less sensitive to clogging, the disc filter is the most suitable to prevent clogging and the use of pure or diluted sewage effluent increases the drippers' flow rate coefficient of variation. Key words: wastewater emitters filter reuse irrigation Objetivou-se, neste trabalho, avaliar o desempenho de tres modelos de gotejadores de fluxo normal utilizando nao apenas o efluente de esgoto tratado puro e diluido mas tambem dois tipos de filtro, tela e disco. O efluente de esgoto tratado utilizado no experimento foi proveniente da estacao de tratamento da cidade. Esta unidade experimental foi composta por 12 linhas laterais com tres modelos de gotejadores, dois modelos de filtro e se utilizou, como agua de irrigacao, o efluente de esgoto tratado puro (100%) e diluido em agua (50%). Para cada modelo de gotejador foram definidos os tratamentos, sendo: T1 (efluente diluido em 50% com agua subterranea e uso de filtro de tela); T2 (efluente diluido em 50% com agua subterranea e uso de filtro de disco); T3 (efluente 100% e uso de filtro de tela); T4 (efluente 100% e uso de filtro de disco). Os resultados permitem afirmar que ha modelos de gotejadores menos susceptiveis ao entupimento, sendo o gotejador de pastilha menos sensivel ao entupimento. O filtro de disco e o mais indicado para prevenir o entupimento. O uso de efluente de esgoto puro ou diluido aumenta o coeficiente de variacao de vazao dos gotejadores. Palavras-chave: agua residuaria emissores filtro reuso irrigacao |
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ISSN: | 1415-4366 |
DOI: | 10.1590/1807-1929/agriambi.v21n6p363-368 |