Advances in Geosciences
Advances in Geosciences
ADGEO
Articles | Volume 54
Articles | Volume 54
https://doi.org/10.5194/adgeo-54-217-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/adgeo-54-217-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 54
31 Mar 2021
 | 31 Mar 2021

Interactions between the calcium scaling inhibitor NC47.1 B, geothermal fluids, and microorganisms – results of in situ monitoring in the Bavarian Molasse Basin (Germany) and accompanying laboratory experiments

Christoph Otten, Beate Dassler, Sebastian Teitz, Joy Iannotta, Florian Eichinger, Andrea Seibt, Dietmar Kuhn, and Hilke Würdemann

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Short summary
Mineral precipitation in filters and heat exchangers can impede geothermal plant operation and cause expensive losses of efficiency. To prevent scaling a biodegradable inhibitor has been applied in a geothermal plant. Water monitoring revealed no significant chemical changes, but an adaption of the microbial community as well as a higher abundance of Bacteria after heat extraction. Laboratory experiments under anaerobic conditions showed that the inhibitor can be almost completely metabolized.
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