Abstract
Weathering of pyrite rich alum shale processing waste has led to metal pollution in Kvarntorp, Sweden. Here we use a fungal strain isolated from the site to monitor the excretion of uranium/metal stabilizing ligands under uranium induced stress. After 2 weeks 91 % was lost from a 10 mg L−1 solution but 57 % already within 10 min. The formation of colloidal/particulate uranium is mainly controlled by organic exudates phosphorus excreted by the fungus. Most likely, the change in solution properties from metabolic processes resulted in the formation species through adsorption and precipitation.
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Grandin, A., Ogar, A., Sjöberg, V., Karlsson, S. (2015). Uranium induced stress promotes fungal excretion of uranium/metal stabilizing ligands: Analysis of metal-organic compounds with Size Exclusion Chromatography and Inductively Coupled Plasma-Mass Spectroscopy. In: Merkel, B., Arab, A. (eds) Uranium - Past and Future Challenges. Springer, Cham. https://doi.org/10.1007/978-3-319-11059-2_40
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DOI: https://doi.org/10.1007/978-3-319-11059-2_40
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