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Biology

The Computing for Science (CS) group supports ILL scientists, students and visitors in a number of activities including data analysis, instrument simulation and sample simulation.

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Emmanuel Farhi

Projects : Biology

I have activities about an algae growing in nuclear storage pool under radiation.

 

The Coccomyxa actinabiotis can survive 10-20 kGy irradiation dose, can concentrate metals (Ag, Co, Cr, Zn, Mn, Sb, Ni, Fe, Cs, U, lanthanides, ...) with very high efficiency, including their radio-isotopes. The algae can be used for purification technology to e.g. remove metallic pollutants from liquid wastes such as from the mining industry, nuclear effluents, and contaminated areas. The efficiency compares with the classical ion exchanger resin methods, but the algae matrix can be produced easily (water, light and few nutriments), reduced in volume by 90% by dessication, and a further 90% by burning. The technology has been tested in real scale, and we have developped a micro-pilot plant as a demonstrator.

 

Please look at the following paper to learn more:

  • Spectroscopic investigation of ionizing-radiation tolerance of a Chlorophyceae green micro-alga Farhi E, Rivasseau C, Gromova M, et al., J. Phys: Cond Matt 20 (2008) 104216
  • Resistance to irradiation of micro-algae growing in the storage pools of a nuclear reactor investigated by NMR and neutron spectroscopies, Corinne Rivasseau, Emmanuel Farhi, Marina Gromova, Jacques Ollivier, Richard Bligny (2010) Spectroscopy – Biomedical Applications, 24 : 381-385.
  • An extremely radioresistant green eukaryote for radionuclide bio-decontamination in the nuclear industry Corinne Rivasseau, Emmanuel Farhi, Ariane Atteia, Alain Couté, Marina Gromova, Diane de Gouvion Saint Cyr, Anne-Marie Boisson, Anne-Sophie Féret and Richard Bligny , Energy Environ. Sci., 2013,6, 1230-1239 . DOI: 10.1039/C2EE23129H [pdf]
  • Determination of elemental distribution in green micro-algae using synchrotron radiation nano X-ray fluorescence (SR-nXRF) and electron microscopy techniques – subcellular localization and quantitative imaging of silver and cobalt uptake by Coccomyxa actinabiotis, Thomas Leonardo, Emmanuel Farhi, Anne-Marie Boisson, Jérome Vial, Peter Cloetens, Sylvain Bohic, Corinne Rivasseau, Metallomics. 01/2014; DOI:10.1039/C3MT00281K [ pdf ]
  • Feasibility study of microfiltration for algae separation in an innovative nuclear effluents decontamination process, D De Gouvion, Saint Cyr, C Wisniewski, L Schrive, E Farhi, C Rivasseau, Separation and Purification Technology. 02/2014; 125:126-135 [ pdf ].
  • Silver accumulation in the green microalga Coccomyxa actinabiotis: toxicity, in situ speciation and localization investigated using synchrotron XAS, XRD and TEM, T Leonardo, E Farhi, S Pouget, S Motellier, A-M Boisson, D Banerjee, F Rebeille , C Den Auwer, and C Rivasseau, Environ. Sci. Technol. (2015). DOI: 10.1021/acs.est.5b03306. See also the Chem. Eng. News highlight.

And the following patents