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Description
Monazite as the major ore of the balck sand contains naturally occuring radioactive elements such as ; thorium, uranium, lanthanum and some other rare earth elements. Separation of those elements from monazite was passed through several steps. In case of uranium, it has been concentrated in the green leachate solution and its separation of uranium pased through several steps and assured with spectroscopic measurements. Treatment process of producing (NORM) uranium mostly contaminated with iron in a green lechat solution which is defined as a green rust solution enriched with phosphoate medium. A further step is needed to separation of uranium from that green solution. Therefore, separation of uranium was done by adjusting pH, where in acidic medium all the lanthanide and thorium was preicptated and at highly alkaline media uranium was spearated as a yellow potassium diurinate which dissolve easily in nitric acid forming uranyl nitrate. Spectrophotometeric measurment as a qualitative and quantitative assurance with uv-vis direct and indirect measuremtns and spectroflurometeric technique was used in order to aprove the presence of uranium qualitatively and quantitatively.
