The Influence of Filtration on Ultraviolet Disinfection of Secondary Effluent for Microirrigation

Hills, David J.; Tajrishy, Massoud A.; Tchobanoglous, G.

doi:10.13031/2013.3049

Cited by 19 publications

(2 citation statements)

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“…Increasing the velocity of flushing may need more costly system designs (e.g., larger supply pipe main, higher pumping requirements, reduced zone sizes) and labor requirements for flushing in irrigation systems should be increased [14]. Different studies explored different flushing frequencies: daily [19], weekly [20], every two weeks [17,21], and monthly [18]. Li et al [21] claimed that emitter clogging was minimized in cases of biweekly flushing.…”

Section: Emitter Characteristicsmentioning

confidence: 99%

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Influence of Flushing Velocity and Flushing Frequency on the Service Life of Labyrinth-Channel Emitters

et al. 2018

Water

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Dripline flushing is an effective way to relieve emitter clogging and extend the longevity of drip irrigation systems. This laboratory study was conducted at Kunming University of Science and Technology to evaluate the effect of three targeted flushing velocities (0.3, 0.6, and 0.9 m/s) and four flushing frequencies (no flushing, flushing daily, and flushing every three or five days) on the emitter’s service life and the particle size distribution of the sediment discharged from emitters and trapped in an emitter channel. The gradation of particle size was analyzed by a laser particle size analyzer. The experiment results suggested that flushing velocity and flushing frequency had a significant effect on the service life of emitters, and the emitter’s service life was extended by 30.40% on average under nine different flushing treatments. Flushing can effectively reduce the accumulation of sediments in the dripline and decrease the probability of coarse particles flowing into emitters and fine particles aggregating and cementing in the labyrinth channel, thus relieving the emitter clogging. Therefore, dripline flushing can effectively slow down clogging in muddy water drip irrigation system. The recommended flushing velocity should be set at 0.6 m/s, and the flushing intervals should be shortened.

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Section: Emitter Characteristicsmentioning

confidence: 99%

“…Different studies explored different flushing frequencies: daily [19], weekly [20], every two weeks [17,21], and monthly [18]. Li et al [21] claimed that emitter clogging was minimized in cases of biweekly flushing.…”

Section: Introductionmentioning

confidence: 99%