Trace and Major Elements in Ash of "Nikola Tesla A" Power Plant (III)-Associations of Elements in Passive Cassette Ash
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Statistical analysis of concentrations of trace and major elements obtained by five-step sequential extraction of samples of dump ash taken from a passive, previously filled cassette of "Nikola Tesla A" power plant dump located near Belgrade, Serbia, revealed the existence of magnesium alumosilicates, mixed silicates of potassium and magnesium, alumosilicates not containing magnesium, and compounds of aluminium, not containing silicon or magnesium that were dissolved in the fifth phase of extraction. Intraphase associations of major elements dissolved in the third phase were not established. Preferential intraphase and interphase binding of matrix and adsorbed and ion-exchangeable fractions of elements were established and discussed.
Keywords:correlation analysis / dump coal ash / passive cassette / sequential extraction
Source:Energy Sources, Part A: Recovery, Utilization and Environmental Effects, 2015, 37, 14, 1487-1494
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