Subsurface Drip Irrigation Using Livestock Wastewater: Dripline Flow Rates

Trooien, Todd P.; Lamm, Freddie R.; Stone, L. R.; Rogers, Danny H.; Clark, G. A.; Schlegel, Alan J.

doi:10.13031/2013.5301

Cited by 44 publications

(42 citation statements)

References 7 publications

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“…Several studies have shown a greater clogging of emitters located at the end of the laterals (Adin and Sacks, 1991;Ravina et al, 1992Ravina et al, , 1997Trooien et al, 2000;Duran-Ros et al, 2009;Puig-Bargués et al, 2009), attributable to the lower velocity at this point, which favors particle settling (Shannon et al, 1982). Proper flushing can reduce emitter clogging at this location because it can remove sediments from the dripline.…”

Section: Effect Of Emitter and Locationmentioning

confidence: 99%

Effect of flushing frequency on emitter clogging in microirrigation with effluents

Puig‐Bargués

Arbat

Elbana

et al. 2010

Agricultural Water Management

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Please, cite this article as: Puig-Bargués, J.; Arbat, G.; Elbana, M.; Duran-Ros, M.; Barragán, J.; Ramírez de Cartagena, F.; Lamm, F.R. AbstractFlushing 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.

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Section: Effect Of Emitter and Locationmentioning

confidence: 99%

Effect of flushing frequency on emitter clogging in microirrigation with effluents

Puig‐Bargués

Arbat

Elbana

et al. 2010

Agricultural Water Management

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“…Most sensitive emitters to clogging were found in Shahrekord and Borazjan sites that had the lowest discharges among the studied sites. Ravina et al (1997), Trooien et al (2000), and Liu and Huang (2009) found that emitters with higher discharge are clogged less than those with lower discharge.…”

Section: Resultsmentioning

confidence: 99%

Field performance evaluation of micro irrigation systems in Iran

2014

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Zamaniyan M., Fatahi R., Boroomand-Nasab S. (2014): Field performance evaluation of micro irrigation systems in Iran. Soil & Water Res., 9: 135-142.The efforts to introduce the micro irrigation system in Iran go back as far as the year 1990. The area under micro irrigation system in Iran covers about 400 000 ha and it is estimated to double (800 000 ha) during the next five years. The field performance of micro irrigation systems was studied in ten Iranian sites. Physical, chemical, and biological analyses of water samples derived from each site included pH, electrical conductivity (EC), total suspended solids (TSS), total dissolved solids (TDS), Fe, Mn, Mg, Ca, and bacterial number (BN). In this study relative emitter discharge (R), percentage of completely clogged emitters (P clog ), emission uniformity (EU), absolute uniformity emission (EU a ), statistical uniformity (Us), coefficient of variation due to emitter performance in the field (V pf ), and sector emission uniformity (EUs) were evaluated. Results showed that performance of micro irrigation systems in Iran is low and poor. Average EU, Us, and V pf values in different sites were 52.8, 61.3, and 38.2%, respectively. Most frequent problems detected in irrigation units were: inadequate working pressure, emitters clogging, and lacking farmers' training.

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“…Diversos autores han constatado que es más probable encontrar emisores completamente obturados al final de los laterales de riego, especialmente cuando se utilizan aguas regeneradas (Duran-Ros et al, 2009;Ravina et al 1992Ravina et al , 1997Trooien et al 2000) debido a que con el menor caudal que circula por esta zona hay una mayor cantidad de deposiciones (Ravina et al 1992, Trooien et al 2000Hills et al 2000). En las evaluaciones en las que se obtuvo menor UDq según el método de Merriam y Keller (1978) se registraron los mayores números de emisores completamente obturados, lo que se observa (Figura 5) con una caída de la UDq hasta el 40 % que se produce al llegar a las 2000 h de funcionamiento.…”

Section: -Resultados Y Discusiónunclassified