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

Publikationen

  1. Generative 3D reconstruction of Ti-6Al-4V basketweave microstructures by optimization of differentiable microstructural descriptors
  2. An automated, modular system for organic waste utilization using Hermetia illucens larvae
  3. Atomare Hinterlassenschaften
  4. Anonymized firm data under test: evidence from a replication study
  5. Theorie des Quantum Computings
  6. Construct Clean-Up in Proactivity Research
  7. An introductional lecture on chaotic systems through Lorenz attractor and forced Lotka Volterra equation for interdisciplinary education
  8. Can guided introspection help avoid rationalization of meat consumption?
  9. Intermediate `time-spaces' - The rediscovery of transition in spatial planning and environmental planning
  10. Infinite Mixtures of Markov Chains
  11. Co-EM Support Vector learning
  12. Timing and fragmentation of daily working hours arrangements and income inequality
  13. Differential mortality rates in major and subthreshold depression
  14. Comparison between UKF and EKF in Sensorless Synchronous Reluctance Motor Drives
  15. Improving efficiency in budgeting
  16. Accounting for capacity and flow of ecosystem services
  17. On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems - a study from SE China
  18. Motion Capture
  19. Sustainable from the Very Beginning
  20. The auditor as an element of in- and external corporate governance
  21. Internet of Things-Specific Challenges for Enterprise Architectures
  22. Understanding and Communicating Climate Change in Metaphors
  23. Proactivity and Adaptability
  24. Determination of the antifungal agent posaconazole in human serum by HPLC with parallel column-switching technique
  25. Examining long-term impacts of a training programme to improve quality of IEP goals
  26. Can personal initiative training improve small business success?
  27. Resilience or vulnerability? Vegetation patterns of a Central Tibetan pastoral ecotone
  28. Evaluation and sustaining factors of machidukuri groups organized in relation with the 'hope plan'