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Review

Reclaimed Water Reuse for Groundwater Recharge: A Review of Hot Spots and Hot Moments in the Hyporheic Zone

by 1,2, 1,2,* and 2
1
Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences (Beijing), Beijing 100083, China
2
School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China
*
Author to whom correspondence should be addressed.
Academic Editors: Wei Fan, Suiyi Zhu, Tao Lyu and Yang Huo
Water 2022, 14(12), 1936; https://doi.org/10.3390/w14121936
Received: 14 May 2022 / Revised: 13 June 2022 / Accepted: 14 June 2022 / Published: 16 June 2022
(This article belongs to the Special Issue Water Reclamation and Reuse in a Changing World)
As an alternative resource, reclaimed water is rich in the various nutrients and organic matter that may irreparably endanger groundwater quality through the recharging process. During groundwater recharge with reclaimed water, hot spots and hot moments (HSHMs) in the hyporheic zones, located at the groundwater–reclaimed water interface, play vital roles in cycling and processing energy, carbon, and nutrients, drawing increasing concern in the fields of biogeochemistry, environmental chemistry, and pollution treatment and prevention engineering. This paper aims to review these recent advances and the current state of knowledge of HSHMs in the hyporheic zone with regard to groundwater recharge using reclaimed water, including the generation mechanisms, temporal and spatial characteristics, influencing factors, and identification indicators and methods of HSHMs in the materials cycle. Finally, the development prospects of HSHMs are discussed. It is hoped that this review will lead to a clearer understanding of the processes controlling water flow and pollutant flux, and that further management and control of HSHMs can be achieved, resulting in the development of a more accurate and safer approach to groundwater recharge with reclaimed water. View Full-Text
Keywords: reclaimed water; the hyporheic zone; hot spots and hot moments; groundwater recharge; identification methods; influencing factors reclaimed water; the hyporheic zone; hot spots and hot moments; groundwater recharge; identification methods; influencing factors
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MDPI and ACS Style

Li, Y.; Liu, M.; Wu, X. Reclaimed Water Reuse for Groundwater Recharge: A Review of Hot Spots and Hot Moments in the Hyporheic Zone. Water 2022, 14, 1936. https://doi.org/10.3390/w14121936

AMA Style

Li Y, Liu M, Wu X. Reclaimed Water Reuse for Groundwater Recharge: A Review of Hot Spots and Hot Moments in the Hyporheic Zone. Water. 2022; 14(12):1936. https://doi.org/10.3390/w14121936

Chicago/Turabian Style

Li, Yu, Mingzhu Liu, and Xiong Wu. 2022. "Reclaimed Water Reuse for Groundwater Recharge: A Review of Hot Spots and Hot Moments in the Hyporheic Zone" Water 14, no. 12: 1936. https://doi.org/10.3390/w14121936

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