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Review of factors affecting recovery of freshwater stored in saline aquifers

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Abstract

A simulation analysis reported previously, and summarized herein, identified the effects of various geohydrologic and operational factors on recoverability of the injected water. Buoyancy stratification, downgradient advection, and hydrodynamic dispersion are the principal natural processes that reduce the amount of injected water that can be recovered. Buoyancy stratification is shown to depend on injection-zone permeability and the density contrast between injected and saline native water. Downgradient advection occurs as a result of natural or induced hydraulic gradients in the aquifer. Hydrodynamic dispersion reduces recovery efficiency by mixing some of the injected water with native saline aquifer water. In computer simulations, the relation of recovery efficiency to volume injected and its improvement during successive injection-recovery cycles was shown to depend on changes in the degree of hydrodynamic dispersion that occurs. Additional aspects of the subject are discussed.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Review of factors affecting recovery of freshwater stored in saline aquifers
ISBN:
0872627136
Year Published:
1989
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
First page:
367
Last page:
375
Number of Pages:
9
Conference Title:
Artificial Recharge of Ground Water - Proceedings of the International Symposium
Conference Location:
Anaheim, CA, USA
Conference Date:
23 August 1988 through 27 August 1988