the effects of biocides and flow rates in the pipeline were also examined.
Energy facility cooling systems The research sub-programme looking at cooling systems in energy facilities began with an energy company, who provided metallic samples and the opportunity to test
them in an on-line monitoring
system. One of the most important parts of the programme was the investigation into the corrosion mechanisms of copper alloys, both with and without chlorination, in the presence of the microorganisms from seawater systems.
used
chlorination stopped the negative influence of biofouling on the formation of protective oxide layers. Using the model organism Pseudomonas and
2021 EPS, laboratory researchers
investigated the mechanisms leading to the formation of adsorbed biomacromolecule layers at metallic surfaces exposed to sea water. Work in the lab also involved the development of anti-fouling nanocoatings, which were then tested for efficiency in corrosive and microbial environments in cooling systems. Important work on EPS action was carried out in collaboration with the oil and gas sub-programme. The return to the field helped to bring a
number of improvements in areas such as online monitoring. Pertinent advice based on the laboratory research was given to help plant procedures. The anti-fouling coatings were also given test-runs in the real
world, both freshwater situations.
Nuclear waste disposal It is important to know that when nuclear waste is left buried deep in the soil there will be no problems with biocorrosion. High activity waste will be stored in carbon steel containers placed 500m underground, and anoxic corrosion of the containers will produce hydrogen gas and iron oxides. Hydrogen could represent
some hazards
when accumulating for years in the surrounding clay environments. The microorganisms
that may be
associated with hydrogen and iron oxides have been identified to be Iron Reducing Bacteria (IRB) and Hydrogen Oxidizing Bacteria (HOB). Researchers monitored the impact
of the hydrogen on bacterial
activity and corrosion products. They also worked to characterise the electrochemical interfaces in order to determine if carbon steel biocorrosion may occur in presence of
www.projectsmagazine.eu.com in saltwater and
IRB and HOB in a clay environment. The results from this laboratory work put in evidence a consumption of hydrogen and rather an inhibition of localised corrosion of carbon steel by the tested bacteria.
Networking for success BIOCOR has played an active role in the wider academic community since its inception. Having
taken part in
AT A GLANCE
Name of Fellows:
the in these cooling It was shown that a short
annual EUROCORR congress on corrosion in the years 2011 and 2012, BIOCOR will this year be holding its final conference during the event in Estoril, Portugal. Here
the research will be presented
showing the culmination of four years of hard work within the network.
“We started BIOCOR because we realised that there was a need to develop a new profile of researcher, capable of addressing and managing all aspects of scientific and industrial problems related to biocorrosion”
Looking further back, BIOCOR also
organised a successful summer school in July 2011 at the University of Portsmouth. It consisted of six days of
lectures and
workshops by internationally renowned lecturers
presenting state-of-the-art
biocorrosion science, and was open to all who wished to attend. Much work has also been undertaken in of
terms academic publications
throughout the four years of the network, including a special biocorrosion edition for the scientific journal Bioelectrochemistry, a “green
book”
published by the European Federation of Corrosion and numerous other academic papers and presentations.
The research leading to these results has received funding from the European Community’s Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 238579.
Project website:
www.biocor.eu. 63
Name of Senior Visiting Scientists:
Project Coordinator:
Coordinator of the project:
Full Project Partner names:
de Ciências e Technologia da Portugal
Associated Project Partner names:
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