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Is heat a contaminant?

Blum, Philipp; Menberg, Kathrin ORCID iD icon; Koch, Fabien ORCID iD icon; Benz, Susanne ORCID iD icon; Tissen, Carolin; Bayer, Peter

Abstract (englisch):

Due to the great potential of geothermal energy systems to lower current greenhouse gas emissions
such systems and the thermal use of shallow groundwater are continuously increasing worldwide. In
Europe, for example, about 4 million tons of CO2 are annually saved by ground source heat pump
(GSHP) systems (Bayer et al. 2012). Hence, the increasing installations of shallow geothermal systems
put increasingly pressure on groundwater systems. Until now, appropriate criteria to control
geothermal groundwater use in national and international legislations are often still at a preliminary
state or even not existing. In 2000, for example, the European Union (EU) Water Framework
Directive (WFD) defined the release of heat into the groundwater as pollution. In contrast, the
cooling of groundwater for heating purposes, is not especially mentioned. Some of the national
legislations have far more reaching definitions. For example, in Germany, detrimental changes in
physical, chemical and biological characteristics have to be avoided. In Switzerland, the biocenosis of
groundwater should be in natural state. However, exact definitions of ‘detrimental changes’ and
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Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Vortrag
Publikationsdatum 09.09.2019
Sprache Englisch
Identifikator KITopen-ID: 1000098968
HGF-Programm 35.14.01 (POF III, LK 01) Effiziente Nutzung geothermisch. Energie
Veranstaltung 10th International Conference on Groundwater Quality (2019), Lüttich, Belgien, 09.09.2019 – 12.09.2019
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