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Microbial Reduction of Illite and Glauconite

EMSL Project ID
2329
Award DOI
https://dx.doi.org/10.46936/genr.proj.2001.2329/60003064

Abstract

 This project investigates reduction of Fe(III) in structure of sedimentary illite and glauconite by Shewanella oneidensis CN32, and possible implications for bioremediation and subsurface microbial ecology. Subsurface bacteria have been discovered in several sedimentary basin, however, their survial mechanisms have not been fully understood. Clay minerals, illite in particular, are most abundant minerals in such a setting, and questions arise as to whether or not these organisms can live on these clays for their energy needs. The objectives of this project are therefore to delineate if it is possible for subsurface bacteria to utilize clay minerals for their respiration, and if so, what are the implications for clay diagenesis in context of organic matter maturation ? This project will utilize a suite of techniques, including microbial reduction, chemical extraction, X-ray diffraction, Mossbauer spectroscopy, electron microscopy. Mossbauer spectroscopy is particularly important to the project because it provides quantitative information on relative proportions of Fe(III) and Fe(II) on the original and bioreduced clay minerals.

Project Details

Project type
Exploratory Research
Start Date
2001-08-07
End Date
2002-11-25
Status
Closed
Released Data Link
https://search.emsl.pnnl.gov/?project_id_search=2329

Team

Principal Investigator

Hailiang Dong
Institution
Miami University

Team Members

James Fredrickson
Institution
Pacific Northwest National Laboratory

Related Publications

Dillon, H., et al., Optimizing the Advanced Ceramic Material for Diesel Particulate Filter Applications. SAE 2007 World Congress, 2007. 2007-01-1124.
RK Kukkadapu, JK Fredrickson, JM Zachara, DW Kennedy, HM Kostandarithes, and Dong H. 2003. "Microbial Reduction of Structural Fe(III) in Illite and Goethite." Environmental Science and Technology Vol. 37(7):1268-1276.
Stewart ML, TR Gallant, DH Kim, GD Maupin, and A Zelenyuk. 2010. Fuel Efficient Diesel Particulate Filter (DPF) Modeling and Development . PNNL-19476, Pacific Northwest National Laboratory, Richland, WA.
Wolcott, M., L. Jiang, J. Zhang, and J. Holbery. 2007. Study of the PHBV/cellulose whisker nanocomposites. In: Proceedings of the 22nd Annual American Society for Composites Technical Conference, Seattle, WA, Sept. 17-19. pp. 167-176.