Development of semi-analytical solution for recharging through multiple well points system under constant head conditions

Vashisht, A. K.; Shakya, S.K.

doi:10.1080/09715010.2015.1066717

Cited by 1 publication

(5 citation statements)

References 13 publications

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“…(2), the up-coning of the interface depends on the density difference between the fresh and brackish water. For any operational discharge head value, decrease in density difference between freshwater and brackish/saline water leads the interface to rise higher [8], and which is synonymous to Wang's [17] results. Reclamation of such lands for sustaining livelihood is a major challenge for the scientists of India and Pakistan.…”

Section: Second Type Of Problemmentioning

confidence: 78%

“…To control the rise of interface to reach the effective pumping zone of the abstraction well, the only feasible option is to limit its discharge head [8]. For the purpose, horizontal wells can be used to abstract groundwater.…”

Section: Horizontal Wellsmentioning

confidence: 99%

“…In this modified ASR technique, freshwater is injected in the deeper portion of the aquifer whereas its recovery is made from the shallow well. On the other hand, as the MWPS operates under limited head conditions and it penetrates only the upper portion of the freshwater zone of the aquifer through smaller capacity wells, it causes minimum disturbance to the denser native brackish water which is flowing in the lower portion of the aquifer [8]. The recharged water gets an opportunity to store in the wide-spread portion of the aquifer.…”

Section: Groundwater Recharging Through Mwps Under Constant Head Condmentioning

confidence: 99%

“…Realizing this need, Vashisht and Shakya [8] have proposed a semianalytical solution for evaluating hydraulic head distribution and recharging rate in a single leaky aquifer while recharging freshwater under constant head conditions through MWPS. The proposed solution was based on the introduction of a new relation termed as "position-oriented opportunistic proportion."…”

Section: Groundwater Recharging Through Mwps Under Constant Head Condmentioning

confidence: 99%

“…It is not only the anthropogenic reasons that are responsible for the development of brackish aquifers, these may also occur naturally. Under natural geographical settings, there are regions all over the world where the native groundwater quality is brackish [8] and one of the possible reasons is the retention of ions from salt water trapped at the time of ancient marine transgression [9]. The vast stretches in the states of Rajasthan, Punjab, and Haryana of India and Indus basin of Pakistan are having brackish aquifers.…”

Section: Introductionmentioning

confidence: 99%

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Flow through Multiple Well Points System

Vashisht¹,

Shakya²

2016

Groundwater - Contaminant and Resource Management

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Under natural geographical settings, there are regions all over the world where the native groundwater quality is brackish. However, recharging from the surface water bodies (i.e., rivers and canals) establishes freshwater lenses in the upper portions of these brackish aquifers. Skimming of these freshwater lenses is a viable technique for sustaining livelihood and agricultural practices in these regions. In the present chapter, various skimming methods have been discussed. In addition, one another type of problem has also been developed in certain pockets of these regions. The nonwithdrawal of groundwater and the excess use of easily available surface water resources (i.e., canal water) have created severe water logging conditions. Subsequently, it leads to the creation of salt-affected soils. One of such areas located in the southwestern Punjab (India) was taken under study. Keeping the region's problems in mind and considering the merits and demerits of all the skimming methods, a much efficient and affordable technique named multiple well points system (MWPS) has been proposed. The continuous use of MWPS not only reclaimed the area but also improved the groundwater quality. The system was field tested and modified before recommending to the farmers. Later on, the MWPS's feasibility as a groundwater recharging system was also demonstrated in the field and the results have shown that it is a viable technique for reviving freshwater lenses in the region.

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Section: Second Type Of Problemmentioning

confidence: 78%

Section: Horizontal Wellsmentioning

confidence: 99%

Section: Groundwater Recharging Through Mwps Under Constant Head Condmentioning

confidence: 99%

Section: Groundwater Recharging Through Mwps Under Constant Head Condmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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