Hydrochemical changes induced by underground pumped storage hydropower: influence of aquifer parameters in coal mine environments
<p>Underground pumped storage hydropower (UPSH) induces hydrochemical changes when water evolves to reach equilibrium with the atmosphere (in the surface reservoir) and with the surrounding medium (in the underground reservoir). These hydrochemical changes may impact the environment and the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2018-07-01
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| Series: | Advances in Geosciences |
| Online Access: | https://www.adv-geosci.net/45/45/2018/adgeo-45-45-2018.pdf |
| Summary: | <p>Underground pumped storage hydropower (UPSH) induces hydrochemical changes
when water evolves to reach equilibrium with the atmosphere (in the surface
reservoir) and with the surrounding medium (in the underground reservoir).
These hydrochemical changes may impact the environment and the efficiency of
the system (i.e., the UPSH plant), especially in coal mine environments where
the presence of sulphide minerals is common. For this reason, it is needed to
assess the variables that control the behavior of the system in order to
establish criteria for the selection of abandoned mines to be used as
underground reservoirs in future UPSH plants.</p><p>Coupled hydro-chemical numerical models are used for investigating the
influence of hydraulic parameters on the hydrochemical changes when pyrite
is present in the surrounding medium. Results show the role of the hydraulic
conductivity and the porosity on the system behavior, which is helpful for
selecting those abandoned mines where the hydrochemical changes and their
associated consequences will be less.</p> |
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| ISSN: | 1680-7340 1680-7359 |