Monitoring of microbially mediated corrosion and scaling processes using redox potential measurements

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

The use of redox potential measurements for corrosion and scaling monitoring, including microbially mediated processes, is demonstrated. As a case study, monitoring data from 10. years of operation of an aquifer thermal energy storage (ATES) site located in Berlin, Germany, were examined.(Fe 2+)-activities as well as [Fe 3+]-build up rates were calculated from redox potential, pH, conductivity, temperature and dissolved oxygen measurements. Calculations are based on assuming (Fe 3+)-activity being controlled by Fe(OH) 3-solubility, the primary iron(III)-precipitate. This approach was tested using a simple log-linear model including dissolved oxygen besides major Fe 2+-ligands. Measured redox potential values in groundwater used for thermal storage are met within ±8mV. In other systems comprising natural groundwater and in heating and cooling systems in buildings, quantitatively interpretable values are obtained also.It was possible to calculate particulate [Fe 3+]-loads in the storage fluids in the order of 2μM and correlate a decrease in filter lifetimes to [Fe 3+]-build up rates, although observations show clear signs of microbially mediated scaling processes involving iron and sulphur cycling.

OriginalspracheEnglisch
ZeitschriftBioelectrochemistry
Jahrgang97
AusgabenummerSpecial Issue
Seiten (von - bis)137-144
Anzahl der Seiten8
ISSN1567-5394
DOIs
PublikationsstatusErschienen - 06.2014

DOI

Zuletzt angesehen

Forschende

  1. Heinz Witteriede

Publikationen

  1. Inside-sediment partitioning of PAH, PCB and organochlorine compounds and inferences on sampling and normalization methods
  2. Ablation Study of a Multimodal Gat Network on Perfect Synthetic and Real-world Data to Investigate the Influence of Language Models in Invoice Recognition
  3. Non-technical success factors for bioenergy projects-Learning from a multiple case study in Japan
  4. Rational Design of Molecules by Life Cycle Engineering
  5. From temporal myopia to foresight: Bridging the near and the distant future through temporal work
  6. Strategy execution in higher education
  7. “It is not the CO2 itself, it’s the imbalance!”
  8. Eye Movements During Mathematical Word Problem Solving-Global Measures and Individual Differences
  9. The necessity and proportionality of anti-terrorist self-defence
  10. Strategy execution in hospitals
  11. Performance analysis of a thermochemical based heat storage as an addition to cogeneration systems
  12. General strategies to increase the repeatability in non-target screening by liquid chromatography-high resolution mass spectrometry
  13. The technology-mindset interactions
  14. Measuring mathematics competence in international and national large scale assessments
  15. Assistenz
  16. Value creation in post-pandemic retailing
  17. Sense, seize, reconfigure
  18. Generative Phänomenologie in feministischer Perspektive
  19. Diagrammieren/diagrammatische Praxis
  20. The underlying factors in the uptake of electricity demand response
  21. Nachhaltigkeit - zentrales Element des Lüneburger Studienprogramms
  22. READY! Un programma per stimolare la prontezza decisionale
  23. Divergente Antiken. Benns Dorische Welt
  24. Methods for Transdisciplinary Research
  25. Educating sustainability change agents by design
  26. Benefits of integrating popular music in primary and secondary schools
  27. Alteration of share capital