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University of Graz News Angriff von Abwasseranlagen

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Thursday, 22 February 2018

Angriff von Abwasseranlagen

In Feldversuchen gehen Grazer ForscherInnen von TU Graz und Uni Graz den Schäden durch BSK-Korrosion auf den Grund. Foto: pixabay.com

In Feldversuchen gehen Grazer ForscherInnen von TU Graz und Uni Graz den Schäden durch BSK-Korrosion auf den Grund. Foto: pixabay.com

ForscherInnen der TU Graz und Uni Graz zeigen in Water Research neue Materialien, die den Korrosionsprozess durch Schwefelsäure verhindern.

Abwassersysteme sind eine zentrale Infrastruktureinrichtung jeder Kommune. Idealerweise funktionieren sie einwandfrei und sind langlebig. Biogene Umsetzungsprozesse in Kanal- und Klärsystemen sind jedoch „natürliche Feinde“ herkömmlicher Anlagen und verursachen oftmals hohe Kosten durch Schäden an Bauteilen aus Beton und Metall. So haben Abwassersysteme nicht selten eine Lebensdauer von weniger als zehn Jahren, müssen restauriert oder einzelne Bauteile getauscht werden. In diesen Prozessen freigesetzte toxische Gase wie Schwefelwasserstoff stellen zudem ein erhebliches gesundheitliches Gefahrenpotenzial dar, das von Reizerscheinungen bis hin zu Atemstillstand und Tod führen kann.

Eine interdisziplinäre Forschenden-Gruppe von TU Graz und Uni Graz stellt jetzt im Fachjournal Water Research neue Strategien zur Verhinderung von sogenannter Biogener Schwefelsäure-Korrosion (BSK)-Ausbildung vor. Der interdisziplinären Forschungsgruppe gehören Cyrill Grengg vom Institut für Angewandte Geowissenschaften, Florian Mittermayr vom Institut für Materialprüfung und Baustofftechnologie der TU Graz und Günther Koraimann vom Institut für Molekulare Biowissenschaften der Uni Graz an.

>> Mehr erfahren

created by Barbara Gigler (TU Graz) & Andreas Schweiger

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