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Fractional Composition of Nickel, Manganese and Iron in Municipal Solid Waste Incineration Bottom Ash
 
 
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Bialystok University of Technology, Institute of Environmental Engineering and Energy Production, Department of Technology in Environmental Engineering, Faculty of Civil and Environmental Engineering
CORRESPONDING AUTHOR
Adam Łukowski   

Bialystok University of Technology, Institute of Environmental Engineering and Energy Production, Department of Technology in Environmental Engineering, Faculty of Civil and Environmental Engineering
 
J. Ecol. Eng. 2022; 23(11):235–240
 
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ABSTRACT
Fractions of Ni, Mn and Fe in the municipal solid waste incineration (MSWI) bottom ash were investigated. Three fractions of studied metals were separated according to the BCR procedure (acid soluble and exchangeable, reducible and oxidizable). Pseudo-total metal content, pH and dry mass in all samples were evaluated. The share of nickel in fractions followed the sequence: F4 (79.0%) > F3 (9.0%) > F1 (7.5%) > F2 (4.5%), for manganese: F4 (60.4%) > F1 (16.8%) > F2 (13.2%) > F3 (9.6%) and for iron: F4 (74.4%) > F2 (12.6%) > F3 (12.5%) > F1 (0.5%). Mobile pool of metals (F1-F3) contained the least of nickel (21.0%) and the most of manganese (39.7%).