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Effects of heat shocks on biofilm formation and the influence on corrosion and scaling in a geothermal plant in the North German Basin

Résumé : At geothermal plants, process failures often occur due to corrosion and scaling processes. Especially after heat extraction, sulfate reducing bacteria contribute to corrosion processes by producing reduced sulfur compounds. In biofilms containing scales such as iron sulfides, corrosion processes are enhanced. In a mobile bypass system located at the geothermal plant in Neubrandenburg (North German Basin), the influence of biofilm formation on corrosion and scaling was investigated. Short-term heat shocks were successfully tested in the bypass system in order to reduce biofilm formation and thus to diminish corrosion and scaling processes.
Domaine de référence : Biocorrosion
Auteur Kleyböcker Anne, Lienen Tobias, Kasina Monika, Westphal Anke, Teitz Sebastian, Eichinger Florian, Seibt Andrea, Wolfgramm Markus, Würdemann Hilke
Année de parution : 2017.
Mots-clés : Biofilm, microbial influenced corrosion (MIC), Scaling, sulfate reducing bacteria (SRB).
Type de document : Article de revue.
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Ce projet est financé par le Fonds Européen de Développement Régional, la Région Normandie et le Conseil Départemental de la Manche.