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Effect of flushing frequency on emitter clogging in microirrigation with effluents

Flushing is an important maintenance task that removes accumulated particles in microirrigation laterals that can help to reduce clogging problems. The effect of three dripline flushing frequency treatments (no flushing, one flushing at the end of each irrigation period, and a monthly flushing during the irrigation period) was studied in surface and subsurface drip irrigation systems that operated using a wastewater treatment plant effluent for three irrigation periods of 540 h each. The irrigation systems had two different emitters, one pressure compensating and the other not, both molded and welded onto the interior dripline wall, placed in laterals 87 meters long. Dripline flow of the pressure compensating emitter increased 8% over time, while in the nonpressure compensating emitter, dripline flow increased 25% in the surface driplines and decreased 3% in the subsurface driplines by the emitter clogging. Emitter clogging was affected primarily by the interactions between emitter location, emitter type, and flushing frequency treatment. The number of completely clogged emitters was affected by the interaction between irrigation system and emitter type. There was an average of 3.7% less totally clogged emitters in flushed surface driplines with the pressurecompensating emitter as compared to flushed subsurface laterals with the nonpressure compensating emitter

© Agricultural Water Management, 2010, vol. 97, núm. 6, p. 883-891

Elsevier Masson

Autor: Puig Bargués, Jaume
Arbat Pujolràs, Gerard
Elbana, M.
Duran i Ros, Miquel
Barragán Fernández, Javier
Ramírez de Cartagena Bisbe, Francisco
Lamm, Freddie R.
Data: 2010
Resum: Flushing is an important maintenance task that removes accumulated particles in microirrigation laterals that can help to reduce clogging problems. The effect of three dripline flushing frequency treatments (no flushing, one flushing at the end of each irrigation period, and a monthly flushing during the irrigation period) was studied in surface and subsurface drip irrigation systems that operated using a wastewater treatment plant effluent for three irrigation periods of 540 h each. The irrigation systems had two different emitters, one pressure compensating and the other not, both molded and welded onto the interior dripline wall, placed in laterals 87 meters long. Dripline flow of the pressure compensating emitter increased 8% over time, while in the nonpressure compensating emitter, dripline flow increased 25% in the surface driplines and decreased 3% in the subsurface driplines by the emitter clogging. Emitter clogging was affected primarily by the interactions between emitter location, emitter type, and flushing frequency treatment. The number of completely clogged emitters was affected by the interaction between irrigation system and emitter type. There was an average of 3.7% less totally clogged emitters in flushed surface driplines with the pressurecompensating emitter as compared to flushed subsurface laterals with the nonpressure compensating emitter
Format: application/pdf
ISSN: 0378-3774
Accés al document: http://hdl.handle.net/10256/7548
Llenguatge: eng
Editor: Elsevier Masson
Col·lecció: Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.agwat.2010.01.019
Articles publicats (D-EQATA)
És part de: © Agricultural Water Management, 2010, vol. 97, núm. 6, p. 883-891
Drets: Tots els drets reservats
Matèria: Regatge per degoteig
Trickle irrigation
Regatge per aigües residuals
Sewage irrigation
Títol: Effect of flushing frequency on emitter clogging in microirrigation with effluents
Tipus: info:eu-repo/semantics/article
Repositori: DUGiDocs

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