Clogging of drippers caused by suspensions of kaolinite and montmorillonite clays

Oliveira, Fabrício Correia de; Lavanholi, Rogério; Camargo, Antônio Pires de; Ait-Mouheb, Nassim; Frizzone, José Antônio; Tomas, Séverine; Molle, Bruno

doi:10.1007/s00271-019-00652-4

Cited by 15 publications

(8 citation statements)

References 31 publications

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“…The small discharge decreases were assumed to be caused by the effects of water temperature on the characteristics of vortex formation in the deflectors of the emitter labyrinths; therefore, the increase in water temperature may have caused increased energy dissipation by the vortexes and consequent reduction in the emitter discharge. Vortex formation is an efficient mechanism for energy dissipation that plays a significant role in controlling the discharge of turbulent flow emitters (Oliveira et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

Discharge sensitivity of collapsible drip tapes to water temperature

Frizzone

Camargo

Pereira

et al. 2021

Rev. bras. eng. agríc. ambient.

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The objective of this study was to quantify the effect of water temperature variations on the discharge of collapsible thin-walled drip tapes with integrated non-pressure-compensating emitters. The tests were conducted in the laboratory using an automated test bench. Tests were performed to determine the discharge-pressure curves by varying the water temperature from 20 to 50 °C. Nine emitter models of three wall thicknesses (6, 8, and 9 MIL) were evaluated. The coefficients K and x of the discharge-pressure curves varied according to the water temperature. In flat emitters of turbulent flow (x < 0.5), the discharge decreased as the temperature increased. In the welded emitters of turbulent flow, several responses were observed. Regarding emitter D (x > 0.5), the discharge increased as the temperature was increased, while for emitter C (x < 0.5), the discharge decreased; the highest discharge variations occurred at pressures higher than 60 kPa. For embossed emitters, the discharge increased as a function of temperature, however, the greatest variation occurred at the lowest pressures. None of the emitters showed significant difference in the discharge variation due to wall thicknesses.

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Section: Resultsmentioning

confidence: 99%

Discharge sensitivity of collapsible drip tapes to water temperature

Frizzone

Camargo

Pereira

et al. 2021

Rev. bras. eng. agríc. ambient.

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“…As can be seen in Table 1, the studied materials represent both physical and chemical clogging. Clays and sand are associated with physical clogging (Adin & Sacks, 1991;Oliveira et al, 2020) whilst calcium carbonate is a major component of chemical clogging (Hills et al, 1989;Rizk et al, 2019). The two clays investigated (kaolin and bentonite) were chosen because they have different swelling properties (Luckham & Rossi, 1999), and thus have different impacts on dripper clogging (Ait-Mouheb et al, 2019;Oliveira et al, 2020).…”

Section: Samples Preparationmentioning

confidence: 99%

“…Therefore, since the samples contain water, the swelling properties of bentonite appear to make a difference in the spectra and thus in the prediction model. The two clays have a different impact on dripper clogging (Ait-Mouheb et al, 2019;Oliveira et al, 2020), and being able to discriminate between the two is of major interest for clogging studies. Similarly, the ability to discriminate chemical materials such as calcium carbonate from physical materials is of great interest in drip irrigation.…”

Section: Discrimination Between the Different Types Of Clogging Materials Using Pls-damentioning

confidence: 99%

Potential of visible/near infrared spectroscopy coupled with chemometric methods for discriminating and estimating the thickness of clogging in drip-irrigation

Petit

Ait-Mouheb

Garcia

et al. 2021

Biosystems Engineering

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“…The major advantages of the bubble irrigation system are the avoidance of water losses from spray drift losses when sprinkling (Hobson et al, 1993;Holterman, 2003;Miller, 2003;Hilz & Vermeer, 2013), deep drainage losses (Paydar et al, 2009), surface runoff when surface irrigating (Hatiye et al, 2018;Masih & Giordano, 2014), and emitter clogging problems when drip irrigating (Cararo et al, 2006;de Oliveira et al, 2020). Adding water directly to the soil also decreases evaporation losses from the soil surface (Alrubaye et al, 2018).…”

Section: Description Of Self-regulated Irrigation Systemmentioning

confidence: 99%

Development of a Self-regulated Bubble Irrigation System to Control the Size and Shape of Wetting Fronts

Alrubaye

Yusuf

Hamad³

2020

JST

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The main objectives of this study were to introduce a bubble irrigation system, compare the wetting fronts created by the bubble and free-flow systems, and test the viability of a bubble irrigation system. Two laboratory experiments were conducted using 2D flow to measure the wetting fronts. The first experiment measured the free-flow infiltration using an inverted, open plastic bottle. The second experiment tested the bubble-flow technique using an inverted, closed plastic bottle (ICPB). The results showed that the bubble-flow system created a larger width of wetting fronts at the beginning of the infiltration and then expanded less than that of the free-flow system. In contrast, the infiltration depth of the wetting fronts created by the bubble-flow system was much lower than that of the free-flow system. In conclusion, the wetting front width and depth in the bubble-flow system were slightly smaller than those in the free-flow system. In addition, the wetting fronts created by the ICPB were not moved upwards significantly, which proves the ability of specific distribution of the bubble-flow system on the wetting fronts. Therefore, the bubble irrigation system can be used as an alternative for distributing the moisture content in soil profiles.

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Clogging of drippers caused by suspensions of kaolinite and montmorillonite clays

Cited by 15 publications

References 31 publications

Discharge sensitivity of collapsible drip tapes to water temperature

Discharge sensitivity of collapsible drip tapes to water temperature

Potential of visible/near infrared spectroscopy coupled with chemometric methods for discriminating and estimating the thickness of clogging in drip-irrigation

Development of a Self-regulated Bubble Irrigation System to Control the Size and Shape of Wetting Fronts

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