Performance of different filter combinations with surface and subsurface drip irrigation systems for utilizing municipal wastewater

Tripathi, Vinod Kumar; Rajput, T. B. S.; Patel, Neelam

doi:10.1007/s00271-014-0436-2

Cited by 30 publications

(20 citation statements)

References 31 publications

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“…Yavuz et al . () also observed more pronounced emission uniformity reduction in surface placed laterals due to their exposure to higher temperatures in comparison with subsurface placed laterals, which achieved the best system performance in terms of emission uniformity and flow rate reduction (Tripathi et al ., ). Kirnak et al .…”

Section: Discussionmentioning

confidence: 97%

“…Lower flow rate in surface placed laterals may also cause less soil volume wetting. Yavuz et al (2010) also observed more pronounced emission uniformity reduction in surface placed laterals due to their exposure to higher temperatures in comparison with subsurface placed laterals, which achieved the best system performance in terms of emission uniformity and flow rate reduction (Tripathi et al, 2014). Kirnak et al (2002) also reported that water stress resulted in reduction of fresh fruit yield and fruit size in eggplants.…”

Section: Discussionmentioning

confidence: 97%

“…It is usually the result of two or more of these elements working (Nakayama et al, 1978). The extent of dripper clogging with wastewater has been studied by many researchers in detail (Capra and Scicolone, 2004;Puig-Bargues et al, 2005;Tripathi et al, 2014). Capra and Scicolone (2004) recommended that a screen filter is not suitable for use with wastewater.…”

Section: Introductionmentioning

confidence: 99%

“…They also reported almost similar performance by disk and sand media filters with treated municipal wastewater. Tripathi et al (2014) conducted a study on the hydraulic performance of drippers that revealed that a combination (gravel media and disk) filter would be the most appropriate strategy against dripper clogging, with a good coefficient of variation for continuous use of wastewater.…”

Section: Introductionmentioning

confidence: 99%

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Effects on Growth and Yield of Eggplant (Solanum Melongema l.) Under Placement of Drip Laterals and Using Municipal Wastewater

Tripathi

Rajput

Patel

et al. 2016

Irrigation and Drainage

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This study was conducted to utilize municipal wastewater through surface and subsurface (15 and 30 cm) drip systems. Wastewater was treated though media type, disk type and combined media and disk type filters. The field experiment was conducted for two years with wastewater and groundwater. Root length density (RLD), leaf area index (LAI), and fruit yield with dry matter was recorded. LAI was lower under subsurface drip during the initial 55 days after transplantation, but in later stages it was significantly higher in comparison to surface drip. Highest RLD of 3.6 cm cm–3 was recorded under subsurface drip at 30 cm depth. RLD and LAI were related with a correlation coefficient value of 0.69. Highest dry matter content (8.75%) was recorded under surface drip but highest fruit yield was recorded under subsurface placement of drip at 15 cm depth. Subsurface drip at 15 and 30 cm depths resulted in 12.4 and 8.5% higher yields respectively, in comparison with surface drip. Utilization of wastewater through a drip irrigation system has given 6.2% increase in eggplant fruit yield in comparison to groundwater irrigation, with savings of 47, 18 and 40% of N, P2O5 and K2O nutrients respectively. The findings of the present study elucidate the potentials and constraints of wastewater utilization through a subsurface drip system. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects on Growth and Yield of Eggplant (Solanum Melongema l.) Under Placement of Drip Laterals and Using Municipal Wastewater

Tripathi

Rajput

Patel

et al. 2016

Irrigation and Drainage

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“…El filtro con medio poroso mostró una reducción de turbidez (26.29%) significativamente mayor (P<0.05) que las conseguidas por el filtro de cúpulas insertadas (18.53%) y el de brazos colectores (13.45%). Las menores reducciones de turbidez obtenidas con respecto estudios anteriores [7,18,21,22] podrían ser explicadas por los bajos niveles de turbidez del agua de entrada utilizada en el presente ensayo, y por la altura de lecho filtrante fijada en 0.30 m, ya que estaba limitada por el filtro de brazos colectores, cuya altura máxima era de 0.40 m.…”

Section: Evaluación De Los Filtrosunclassified

Efecto de diferentes diseños de drenajes de filtros de arena en la obturación de goteros utilizando aguas residuales regeneradas

Torres¹,

Roš²,

Arbat³

et al. 2019

Congreso Ibérico De Agroingeniería

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Resumen: Los filtros de arena son los que se recomiendan habitualmente cuando se utilizan aguas regeneradas en instalaciones de riego por goteo, si bien se desconoce el efecto de sus distintos diseños de drenaje en la prevención del atascamiento de los goteros. Por este motivo, en este trabajo se ha analizado el efecto en la obturación de goteros provocado por el uso de filtros de arena con distintos modelos de drenaje que operaron con agua residual regenerada durante 1000 h. Al inicio, mitad y final del experimento se determinó el caudal emitido de todos y cada uno de los 226 goteros que había en cada uno de los 12 laterales de riego. Los resultados indican que se produjo una reducción significativa (p<0.05) del caudal medido del 8% a las 500 h y del 11% a las 1000 h respecto al inicial. La posición del gotero también tuvo un efecto significativo a partir de las 500 h de operación. Los caudales de los goteros fueron significativamente inferiores (p<0.05) únicamente en los últimos 2 m de los laterales, hallándose los valores mínimos en los dos últimos goteros. El número de goteros totalmente obturados fue del 1.2% con el filtro de drenaje de medio poroso, del 1.0% con el drenaje de cúpulas insertadas y del 0.6% con el filtro de brazos colectores.Palabras clave: riego por goteo, filtración, filtros granulares, atascamiento. IntroducciónEl uso de aguas residuales regeneradas en agricultura resulta una alternativa viable para hacer frente a las cada vez más comunes situaciones de escasez de agua [1], a la vez que permite liberar aguas de mejor calidad para otros usos [2].La mejor técnica para la aplicación en riego agrícola de las aguas residuales regeneradas desde un punto de vista sanitario y ambiental es el riego por goteo [3,4], aunque esta tecnología presenta un problema importante en el atascamiento de los goteros [3,5]. La obturación de los goteros depende de múltiples factores como el tipo de agua utilizada, el tipo de emisor, las condiciones de mantenimiento y el sistema de filtrado [6,7]. Los goteros autocompensantes [8,9], integrados [9] y los de caudales elevados [5,10] son más resistentes a la obturación.Existe un amplio consenso en que la filtración es una operación esencial para prevenir la obturación de los goteros [11], aunque no la consigue evitar completamente [12]. Los filtros de arena son los que ofrecen una elevada protección en las instalaciones de riego por goteo [13] ya que consiguen una reducción más eficaz de los sólidos en suspensión presentes en las aguas de riego [7], evitando mejor la obturación [6]. Algunos autores han estudiado la influencia del diseño del drenaje de los filtros de arena en la pérdida de carga [14,15,16], pero ninguno de ellos ha

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Performance of sand filter with disc and screen filters in irrigation with rainbow trout fish effluent

Hasani

Aminpour²,

Nikmehr

et al. 2022

Irrigation and Drainage

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Drip irrigation is the most suitable system for reusing effluents in agriculture, but emitter clogging is still its major drawback. Adequate filtration is needed to prevent emitter clogging, but little information is available about the performance of different filter types when using fish farm effluent. The purpose of this study was to evaluate the performance of three filtration treatments for rainbow trout effluent in drip irrigation systems: (1) sand filter (T1), (2) sand filter followed by a disc filter (T2) and (3) sand filter followed by a screen filter (T3). The treatments were tested with a constant discharge of 14.4 m3 h−1 at two working pressures of 300 and 150 kPa until reaching the backwashing threshold. For each filter, the following were computed: filtered volume per cross‐section until reaching the backwashing threshold (VB), filtered volume per cross‐section unit and head loss (V10), suspended solids removal efficiency (EF) and filter mass retention (q). T2 at 300 kPa had a significantly (p < 0.01) higher VB, whereas T1 and T3 only showed a VB of 53% and 45% at 300 kPa and 48% and 47% at 150 kPa, respectively, higher than that obtained by T2. The results suggest that using a combination of sand and disc filters at an operation pressure of 300 kPa is the best option when using rainbow trout effluent.

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Performance of different filter combinations with surface and subsurface drip irrigation systems for utilizing municipal wastewater

Cited by 30 publications

References 31 publications

Effects on Growth and Yield of Eggplant (Solanum Melongema l.) Under Placement of Drip Laterals and Using Municipal Wastewater

Effects on Growth and Yield of Eggplant (Solanum Melongema l.) Under Placement of Drip Laterals and Using Municipal Wastewater

Efecto de diferentes diseños de drenajes de filtros de arena en la obturación de goteros utilizando aguas residuales regeneradas

Performance of sand filter with disc and screen filters in irrigation with rainbow trout fish effluent

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