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Content archived on 2024-04-19

Rôle et maîtrise des matières organiques dans la corrosion bactérienne des installations géothermales

CORDIS provides links to public deliverables and publications of HORIZON projects.

Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

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The project aimed to evaluate and rank the three factors - organic matter, bacteria, and the mineral content of geothermal fluids - which are known to be responsible for causing corrosion in geothermal wells. This would allow scientists to predict the risk of microbial corrosion in geothermal plants as a function of other variables, and therefore propose effective preventative or curative solutions to the problem. A large number of geothermal wells and plants across Europe suffer from corrosion. This can have a detrimental effect on the efficiency and therefore the profitability of the plant. Previous experimental work has demonstrated the role of organic matter contained in geothermal water as a limiting factor for microbial corrosion of metals in geothermal environments. Organic matter serves as nutrient material for the microorganisms, particularly for corrosion-causing bacteria (sulphate-reducing bacteria) and common bacteria which form cell attachments (biofilms) on immersed surfaces.

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