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Infiltration and Anti-Filtration Recharge-Pumping Well and Laboratory Recharge Tests

School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
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Water 2018, 10(12), 1834; https://doi.org/10.3390/w10121834
Received: 20 October 2018 / Revised: 4 December 2018 / Accepted: 7 December 2018 / Published: 12 December 2018
(This article belongs to the Special Issue Groundwater Resources Assessment: Quantity and Quality)
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Abstract

Infiltration and anti-filtration recharge-pumping wells (hereinafter, referred to as IAF recharge-pumping wells) can enable rain-flood flowing in rivers or channel recharge to aquifers, in flood periods, and pump groundwater to be utilized in non-flood periods. In this study, a round IAF recharge-pumping well and a square IAF recharge-pumping well were developed, the structure and characteristic were introduced, the calculation equations of single-well recharge quantity of IAF recharge-pumping wells, in unconfined aquifers were deduced, and the steady-state flow recharge test was conducted in the laboratory. The conclusions were as follows. The theoretical equation of the single-well recharge quantity was reasonable. Compared to existing anti-filtration recharge wells, the new IAF recharge-pumping well had stronger anti-deposit and anti-scour abilities and the single-well recharge quantity increased by 400%. Compared to the square IAF recharge-pumping well, the round IAF recharge-pumping well had a better inlet flow pattern and a larger single-well recharge quantity. With an increase in the test times, the single-well recharge quantity gradually decreased and tended to be stable. The existence of the pumping pipe had a little influence on the single-well recharge quantity. View Full-Text
Keywords: recharge-pumping well; recharge test; recharge-pumping wellhead; recharge quantity recharge-pumping well; recharge test; recharge-pumping wellhead; recharge quantity
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Li, Y.; Li, W.; He, J.; Zhang, X.; Li, X. Infiltration and Anti-Filtration Recharge-Pumping Well and Laboratory Recharge Tests. Water 2018, 10, 1834.

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