ISSN:
1432-0495
Keywords:
Key words Overdeepened valleys
;
Gravel aquifer
;
Pollution protection
;
Geothermal heating
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
Notes:
Abstract Foresighted and determined local authorities, purposeful exploration (i.e. by seismic reflection) and extensive testing led to the discovery of a substantial groundwater resource near the community of Seon (Switzerland) at a depth of 268–305 m. Production tests revealed a hydraulic conductivity of ∼5.10–5 m/s, transmissivity of ∼5.10–4 m2/s and a storage coefficient of ∼2% in the aquifer. Pumping up to 1500 l/min is sustainable; the water quality complies chemically and bacteriologically with drinking-water requirements. The residence time of several 103 years, determined by isotope techniques, guarantees protection from surface contamination. The elevated temperature of 19.5 °C of the produced water enables combined use for drinking water and space heating. The environmental benefits are substantial: the emission reduction amounts up to 780 tons/year CO2 and 1 ton/year SO2.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s002540050444
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