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Biomineralization of Vivianite on the Carbon Steel Surface Attacked by the Iron Reducing Bacteria

Published online by Cambridge University Press:  01 February 2011

So Yeon Lee
Affiliation:
[email protected], JAPAN ATOMIC ENERGY AGENCY, Tokai, Japan
Hideki Yoshikawa
Affiliation:
[email protected], Univ. of Tsukuba, World Cultural Heritage Studies, Tsukuba, Ibaraki, Japan
Toshiya Matsui
Affiliation:
[email protected], Univ. of Tsukuba, World Cultural Heritage Studies, Tsukuba, Ibaraki, Japan
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Abstract

Iron remains show the corrosion behavior of metal materials over a long term while buried in the soil. The data provide useful information in the study of the stability of overpack (carbon steel) under geological disposal conditions. And they also provide important information for the conservation science of important items of cultural heritage. There are two major microbial influences on the metal material surface : corrosion caused by microbes (microbially influenced corrosion, MIC) ; and mineralization by microbes (biomineralization). To observe these two roles, an iron reducing bacteria was cultured in a liquid medium with carbon steel and detection of corroded products were carried out by XRD method in this study.

Iron reducing bacteria was cultured under static conditions for 41 days with carbon steel. The result showed that a complex (biofilm, bacteria, etc.) was generated by the bacteria and covered the surface of the carbon steel. By using a microscope, the corrosion product was revealed to be formed of green and white crystal, or needle-shaped product and lozenge crystal by SEM observation. The green crystal was vivianite (Fe2+3(PO4)2・8H2O) measuring 50˜250 μm. In a corrosion process of an iron material surface, iron ion Fe2+ is dissolved from the iron in a cathode reaction, and generates Fe3+ oxide as corrosion product. It appears that vivianite can be also generated as corrosion product in an environment rich in Fe2+ and phosphate by activity of an iron reducing bacteria. Some data on the morphological feature of these corrosion products were obtained.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

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References

1 Lee, S. Andras, M. Matsui, T., and Yoshikawa, H. Study on the Microbiologically Influenced Corrosion of Archaeological Iron Objects, The Korean Society of Conservation Science cience of Cultural Heritage. 29, 2425 (2009).Google Scholar
2 Emoto, Y., “The Time Capsule in the Soil”, Conserve the Cultual Heritage (AGNE Gijutsu Center, Japan, 1993) pp. 7374.Google Scholar
3 Yoshikawa, H. Ueno, K. Honda, T. Yamaguchi, S. and Yui, M.Analysis of the Excavated Archaeological Iron Using X-Ray CT,” Proc. 9th Int. Conf. on Radioactive Waste Management and Environmental Remediation, ICEM '03, New York, NY: ASME International, 4776 (2003).Google Scholar
4 Videla, H.A., “Biofilm and Biofouling”, Manual of Biocorrosio,(Lewis publishers, 1996) p. 51.Google Scholar
5 Lee, S. Matsui, T. and Yoshikawa, H. About the Generation of the Corrosion Product of Iron Reduction Bacteria by the Deposit Environment of Archaeological Iron Objects, The Korean Society of Conservation science of Cultural Heritage. 30,4750 (2009).Google Scholar
6 Kim, S., Molecular Biological Study on the Accumulation of Phosphoric Compound in Microorganisms (Paichai University University, Korea, 2002) p. 1.Google Scholar
7 Tazaki, K., Bact Bacterial rial Biomineralization, Journal of the Geological Society of Japan. 20 (3), 95 (1991).Google Scholar
8 Silver, M. Ehrlich, H. L., and Ivarson, K.C., Soil mineral transformation mediated by soil microbes. In Interaction of soil minerals with natural organic and microbe, Huanh, P.M., and Schnitzer, M. (eds.). SSSA Inc. 497519 (1986).Google Scholar
9 Conservation of metal remains, National Research Institute of Culture Heritage onservation (Korea, 1991), p. 10.Google Scholar
10 Kaneko, K.State analysis of the rust of the ancient iron sample”, National Museum of Ethnology research report, 38, 273285, 1992.Google Scholar
11 Yoshikawa, H. Lee, S. Matsui, T. A sampling Method and Data Evalution of Archaeological Samples to Support Long Long-Term Co Corrosion Prediction rrosion Prediction, Corrosion. 65 (4), 230 (2009).Google Scholar