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Study of the feasibility of an aquifer storage and recovery system in a deep aquifer in Belgium
Vandenbohede, A.; Van Houtte, E.; Lebbe, L. (2008). Study of the feasibility of an aquifer storage and recovery system in a deep aquifer in Belgium. Hydrol. Sci. J. 53(4): 844-856. http://dx.doi.org/10.1623/hysj.53.4.844
In: Hydrological Sciences Journal = Journal des Sciences Hydrologiques. Blackwell: Oxford. ISSN 0262-6667; e-ISSN 2150-3435, meer
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| Author keywords |
aquifer storage and recovery, deep aquifer, Belgium, step-drawdown test, push—pull test, cation exchange, mixing of waters |
| Abstract |
The feasibility of aquifer storage and recovery (ASR) was tested in a deep aquifer near Koksijde, Belgium. To achieve this, oxic drinking water was injected into a deep aquifer (the Tienen Formation) that contains anoxic brackish water. The hydraulic properties of the aquifer were determined using a step-drawdown test. Chemical processes caused by the injection of the water were studied by two push—pull tests. The step-drawdown test was interpreted by means of an inverse numerical model, resulting in a transmissivity of 3.38 m2/d and a well loss coefficient of 0.00038 d2/m5. The push—pull tests identified mixing between the injection and pristine waters, and cation exchange, as the major processes determining the quality of the recovered water. Mobilization of DOC, aerobic respiration, denitrification and mobilization of phosphate were also observed. |
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