scholarly journals Aquifer Storage and Recovery in Layered Saline Aquifers: Importance of Layer-Arrangements

Water ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 2595
Author(s):  
Hongkai Li ◽  
Yu Ye ◽  
Chunhui Lu
Keyword(s):  
Potable Water ◽  
Saline Water ◽  
Saline Aquifers ◽  
Aquifer Storage And Recovery ◽  
Geometric Means ◽  
Aquifer Storage ◽  
Permeable Layer ◽  
Multiple Cycle ◽  
The Difference ◽  
Asr System

Aquifer storage and recovery (ASR) refers to injecting freshwater into an aquifer and later withdrawing it. In brackish-to-saline aquifers, density-driven convection and fresh-saline water mixing lead to a reduced recovery efficiency (RE, i.e., the volumetric ratio between recovered potable water and injected freshwater) of ASR. For a layered aquifer, previous studies assume a constant hydraulic conductivity ratio between neighboring layers. In order to reflect the realistic formation of layered aquifers, we systematically investigate 120 layered heterogeneous scenarios with different layer arrangements on multiple-cycle ASR using numerical simulations. Results show that the convection (as is reflected by the tilt of the fresh-saline interface) and mixing phenomena of the ASR system vary significantly among scenarios with different layer arrangements. In particular, the lower permeable layer underlying the higher permeable layer restricts the free convection and leads to the spreading of salinity at the bottom of the higher permeable layer and early salt breakthrough to the well. Correspondingly, the RE values are different among the heterogeneous scenarios, with a maximum absolute RE difference of 22% for the first cycle and 9% for the tenth cycle. Even though the difference in RE decreases with more ASR cycles, it is still non-negligible and needs to be considered after ten ASR cycles. The method to homogenize the layered heterogeneity by simply taking the arithmetic and geometric means of the hydraulic conductivities among different layers as the horizontal and vertical hydraulic conductivities is shown to overestimate the RE for multiple-cycle ASR. The outcomes of this research illustrate the importance of considering the geometric arrangement of layers in assessing the feasibility of multiple-cycle ASR operations in brackish-to-saline layered aquifers.

Time-lapse gravity monitoring: A systematic 4D approach with application to aquifer storage and recovery

Geophysics ◽  
2008 ◽  
Vol 73 (6) ◽  
pp. WA61-WA69 ◽  
Author(s):  
Kristofer Davis ◽  
Yaoguo Li ◽  
Michael Batzle
Keyword(s):  
Water Reservoir ◽  
Time Lapse ◽  
Subsurface Water ◽  
Aquifer Storage And Recovery ◽  
Quantitative Interpretation ◽  
Reservoir Water ◽  
Design Data ◽  
Initial Water ◽  
Aquifer Storage ◽  
Asr System

We studied time-lapse gravity surveys applied to the monitoring of an artificial aquifer storage and recovery (ASR) system in Leyden, Colorado. An abandoned underground coal mine has been developed into a subsurface water reservoir. Water from surface sources is injected into the artificial aquifer during winter for retrieval and use in summer. As a key component in the geophysical monitoring of the artificial ASR system, three microgravity surveys were conducted over the course of ten months during the initial water-injection stage. The time-lapse microgravity surveys successfully detected the distribution of injected water as well as its general movement. Quantitative interpretation based on 3D inversions produced hydrologically meaningful density-contrast models and imaged major zones of water distribution. The site formed an ideal natural laboratory for investigating various aspects of time-lapse gravity methodology. Through this application, we have studied systematically all steps of the method, including survey design, data acquisition, processing, and quantitative interpretation.

Process-Based Reactive Transport Model To Quantify Arsenic Mobility during Aquifer Storage and Recovery of Potable Water

2011 ◽  
Vol 45 (16) ◽  
pp. 6924-6931 ◽  
Author(s):  
Ilka Wallis ◽  
Henning Prommer ◽  
Thomas Pichler ◽  
Vincent Post ◽  
Stuart B. Norton ◽  
...  
Keyword(s):  
Reactive Transport ◽  
Potable Water ◽  
Transport Model ◽  
Aquifer Storage And Recovery ◽  
Aquifer Storage ◽  
Reactive Transport Model ◽  
Arsenic Mobility

scholarly journals Consequences and mitigation of saltwater intrusion induced by short-circuiting during aquifer storage and recovery in a coastal subsurface

2017 ◽  
Vol 21 (2) ◽  
pp. 1173-1188 ◽  
Author(s):  
Koen Gerardus Zuurbier ◽  
Pieter Jan Stuyfzand
Keyword(s):  
Coastal Aquifers ◽  
Saltwater Intrusion ◽  
Field Measurements ◽  
Variable Density ◽  
Aquifer Storage And Recovery ◽  
Recovery Efficiency ◽  
Aquifer Storage ◽  
Solute Transport Modeling ◽  
Ambient Groundwater ◽  
Asr System

Abstract. Coastal aquifers and the deeper subsurface are increasingly exploited. The accompanying perforation of the subsurface for those purposes has increased the risk of short-circuiting of originally separated aquifers. This study shows how this short-circuiting negatively impacts the freshwater recovery efficiency (RE) during aquifer storage and recovery (ASR) in coastal aquifers. ASR was applied in a shallow saltwater aquifer overlying a deeper, confined saltwater aquifer, which was targeted for seasonal aquifer thermal energy storage (ATES). Although both aquifers were considered properly separated (i.e., a continuous clay layer prevented rapid groundwater flow between both aquifers), intrusion of deeper saltwater into the shallower aquifer quickly terminated the freshwater recovery. The presumable pathway was a nearby ATES borehole. This finding was supported by field measurements, hydrochemical analyses, and variable-density solute transport modeling (SEAWAT version 4; Langevin et al., 2007). The potentially rapid short-circuiting during storage and recovery can reduce the RE of ASR to null. When limited mixing with ambient groundwater is allowed, a linear RE decrease by short-circuiting with increasing distance from the ASR well within the radius of the injected ASR bubble was observed. Interception of deep short-circuiting water can mitigate the observed RE decrease, although complete compensation of the RE decrease will generally be unattainable. Brackish water upconing from the underlying aquitard towards the shallow recovery wells of the ASR system with multiple partially penetrating wells (MPPW-ASR) was observed. This leakage may lead to a lower recovery efficiency than based on current ASR performance estimations.

scholarly journals Consequences and mitigation of saltwater intrusion induced by short-circuiting during aquifer storage and recovery (ASR) in a coastal subsurface

2016 ◽  
Author(s):  
Koen Gerardus Zuurbier ◽  
Pieter Jan Stuyfzand
Keyword(s):  
Coastal Aquifers ◽  
Saltwater Intrusion ◽  
Field Measurements ◽  
Aquifer Storage And Recovery ◽  
Recovery Efficiency ◽  
Transport Modelling ◽  
Aquifer Storage ◽  
Ambient Groundwater ◽  
Asr System ◽  
Lower Recovery

Abstract. Coastal aquifers and the deeper subsurface are increasingly exploited. The accompanying perforation of the subsurface for those purposes has increased the risk of short-circuiting of originally separated aquifers. This study shows how this short-circuiting negatively impacts the freshwater recovery efficiency (RE) during aquifer storage and recovery (ASR) in coastal aquifers. ASR was applied in a shallow saltwater aquifer overlying a deeper saltwater aquifer, which was targeted for seasonal aquifer thermal energy storage (ATES). Although both aquifers were considered properly separated, intrusion of deeper saltwater into the shallower aquifer quickly terminated the freshwater recovery. The presumable pathway was a nearby ATES borehole. This finding was supported by field measurements, hydrochemical analyses, and SEAWAT transport modelling. The potentially rapid short-circuiting during storage and recovery can reduce the RE of ASR to null. When limited mixing with ambient groundwater is allowed, a linear RE decrease by short-circuiting with increasing distance from the ASR well within the radius of the injected ASR-bubble was observed. Interception of deep short-circuiting water can mitigate the observed RE decrease, although complete compensation of the RE decrease will generally be unattainable. Brackish water upconing from the underlying aquitard towards the shallow recovery wells of the MPPW-ASR system was observed. This "leakage" may lead to a lower recovery efficiency than based on current ASR performance estimations.

Aquifer Storage and Recovery Using Saline Aquifers: Hydrogeological Controls and Opportunities

Ground Water ◽  
2019 ◽  
Vol 58 (1) ◽  
pp. 9-18
Author(s):  
Robert G. Maliva ◽  
William S. Manahan ◽  
Thomas M. Missimer
Keyword(s):  
Saline Aquifers ◽  
Aquifer Storage And Recovery ◽  
Aquifer Storage

scholarly journals Recovery Efficiency of an Aquifer Storage and Recovery (ASR) Experiment from Saline Aquifer under Controlled Conditions

2020 ◽  
Vol 15 (3) ◽  
pp. 441-445
Author(s):  
Abhishek Anand Kaushal ◽  
Gopal Krishan ◽  
Govind Pandey
Keyword(s):  
Saline Water ◽  
Reclaimed Water ◽  
Fixed Time ◽  
Small Scale ◽  
Time Interval ◽  
Aquifer Storage And Recovery ◽  
Recovery Efficiency ◽  
Aquifer Storage ◽  
Fixed Time Interval ◽  
Cumulative Time

Present work was carried out in an experimental model developed at the institute, sand was used as prototype artificial aquifer and was saturated with highly saline water having Electrical Conductivity (EC) equal to 8500 µS/cm. Fresh water with average EC = 467.50 µS/cm and temperature = 25oC was injected in the known amount in the saline water and this water was extracted at a fixed time interval of 1, 1.5, 2, 2.5, 3, 3.5, 4, 4, 8 24, 48, 72, 96, 120, 144, and 168 hours in a cumulative time of 735.30 hours with average recovery efficiency of 63%. Recovered water has salinity equal to or less than 1000 µS/cm. Although, this experiment was carried out at a small scale but this can be tried at a bigger scale for skillfully managing the surface or reclaimed water in problematic areas where demand exceeds the supply.

scholarly journals Potential for Aquifer Storage and Recovery (ASR) in South Bihar, India

2021 ◽  
Vol 13 (6) ◽  
pp. 3502
Author(s):  
Somnath Bandyopadhyay ◽  
Aviram Sharma ◽  
Satiprasad Sahoo ◽  
Kishore Dhavala ◽  
Prabhakar Sharma
Keyword(s):  
Pilot Study ◽  
Environmental Sustainability ◽  
Hard Rock ◽  
Climatic Conditions ◽  
Aquifer Storage And Recovery ◽  
Aquifer Recharge ◽  
Aquifer Storage ◽  
Cropping Season ◽  
Selection Of ◽  
Surface Technique

Among the several options of managed aquifer recharge (MAR) techniques, the aquifer storage and recovery (ASR) is a well-known sub-surface technique to replenish depleted aquifers, which is contingent upon the selection of appropriate sites. This paper explores the potential of ASR for groundwater recharge in the hydrological, hydrogeological, social, and economic context of South Bihar in India. Based on the water samples from more than 137 wells and socio-economic surveys, ASR installations were piloted through seven selected entrepreneurial farmers in two villages of South Bihar. The feasibility of ASR in both hard rock and deep alluvial aquifers was demonstrated for the prominent aquifer types in the marginal alluvial plains of South Bihar and elsewhere. It was postulated through this pilot study that a successful spread of ASR in South Bihar can augment usable water resources for agriculture during the winter cropping season. More importantly, ASR can adapt to local circumstances and challenges under changing climatic conditions. The flexible and participatory approach in this pilot study also allowed the farmers to creatively engage with the design and governance aspects of the recharge pit. The entrepreneurial farmers-led model builds local accountability, creates avenues for private investments, and opens up the space for continued innovation in technology and management, while also committing to resource distributive justice and environmental sustainability.

Aspects of Water Quality Improvement during Aquifer Storage and Recovery

2001 ◽  
Author(s):  
Simon Toze ◽  
Peter Dillon ◽  
Paul Pavelic ◽  
Brenton Nicholson ◽  
Michel Gibert
Keyword(s):  
Water Quality ◽  
Quality Improvement ◽  
Aquifer Storage And Recovery ◽  
Water Quality Improvement ◽  
Aquifer Storage
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