Structural modifications in iron hydrated oxides induced by foreign cation
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The aqueous radioactive wastes are complex chemical systems as consequence of the variety of the contained cations. The chemical systems precipitated from FeSO4 and FeCl3 simulating the aqueous radioactive waste treatment have been investigated by Mössbauer spectroscopy. Mg2+, Ca2+ and Ba2+ were used as foreign cations, the calcium being among the main components of aqueous radioactive waste. The results showed the ion radius influence varying from Mg2+ to Ba2+ in the case of the precipitation from FeSO4. For the precipitation from ferric chloride the influences are not so evident.
KeywordsIron Precipitation Hydrated FeCl3 FeSO4
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