| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bomberg, Malin
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Integrating double-labeling HCR-FISH into a multidisciplinary pipeline for biofouling assessment on austenitic stainless steel in brackish seawater circuitcitations
- 2023Applied DNA HCR-FISH for Biofilm Distribution Imaging on Stainless Steel in Brackish Seawater
- 2019Corrosion and biofouling tendency of carbon steel in anoxic groundwater containing sulphate reducing bacteria and methanogenic archaeacitations
- 2018Corrosion of copper in anoxic ground water in the presence of SRB
- 2017EIS study on aerobic corrosion of copper in ground water: influence of micro-organismscitations
- 2017Microbial fouling and corrosion of carbon steel in deep anoxic alkaline groundwatercitations
- 2017Corrosion of stainless steels AISI 304 and AISI 316 induced by sulfate reducing bacteria in anoxic groundwater
- 2017Corrosion Behavior of Copper in Simulated Anoxic Groundwater Inoculated with Sulfate Reducing Bacteria and Methanogens
- 2016Influence of Chlorination and Choice of Materials on Fouling in Cooling Water System under Brackish Seawater Conditionscitations
- 2015Real-Time Electrochemical Measurements of Carbon Steel in Ground Water with Sulfate Reducing Bacteria Enrichment
- 2014Microbial diversity and corrosion behaviour of carbon steel and stainless steel after one-year exposure in alkaline ground water
- 2014Microbially induced corrosion of carbon steel and stainless steel in alkaline ground water -composition and metabolic functionality of biofilm
- 2014Corrosion of copper in anaerobic groundwater in the presence of SRB
Places of action
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article
EIS study on aerobic corrosion of copper in ground water: influence of micro-organisms
Abstract
The nuclear waste disposal concept in Finland and Swedenis based on a multi-barrier system, where the solid spentfuel is placed in a cast iron container that is furtherenclosed in a copper canister. The copper canisters willbe placed vertically in holes drilled in a deep bedrockwhich are then filled with a bentonite clay. Thenear-field environment of bentonite clay and groundwateris then expected to maintain integrity of the coppercanisters for at least 100 000 years. The ground water atthe final disposal depth contains micro-organisms with avast metabolic potential, and it is known thatmicro-organisms may induce or accelerate the corrosion ofmetals. Therefore, it is of vital importance tounderstand the surface interactions of copper and theexpected near-field environment. In this study, theresults from two types of experiments that investigatethe corrosion of copper in oxic ground water environmentwith and without micro-organisms and electrochemicalimpedance spectroscopy (EIS) as one of the key researchmethods are reported. First, long-term immersionexperiments with a range of in-situ electrochemicalmeasurements were designed to simulate the initial oxicstage of the deep geological nuclear waste repository inthe presence of bentonite. Second, electrochemicallaboratory tests were planned to improve understanding onthe interactions between copper and the micro-organismsin ground water environment: copper specimens wereincubated with micro-organisms for different time periodsand then subjected to electrochemical measurements toprovide data. The results collected from these two testseries are reported and discussed here by focusing on theEIS data and its role in interpreting the surfaceprocesses. It is evident that EIS helps in understandingthe influence of micro-organisms on the copperdegradation process.