Fractions of Zinc, Chromium and Cobalt in Municipal Solid Waste Incineration Bottom Ash
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Institute of Environmental Engineering and Energy Production, Department of Technology in Environmental Engineering, Bialystok University of Technology, ul. Wiejska 45A, 15-351 Białystok, Poland
Publication date: 2022-03-01
Corresponding author
Adam Łukowski
Institute of Environmental Engineering and Energy Production, Department of Technology in Environmental Engineering, Bialystok University of Technology, ul. Wiejska 45A, 15-351 Białystok, Poland
Institute of Environmental Engineering and Energy Production, Department of Technology in Environmental Engineering, Bialystok University of Technology, ul. Wiejska 45A, 15-351 Białystok, Poland
J. Ecol. Eng. 2022; 23(3):12-16
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ABSTRACT
In the fresh municipal solid waste incineration (MSWI) of bottom ash, samples the fractional composition of Zn, Cr and Co was investigated. The BCR method was utilised to evaluate the acid soluble and exchangeable fraction (F1), reducible fraction (F2), oxidizable fraction (F3) and residual fraction (F4). Physico-chemical parameters such as pH, dry mass, and pseudo-total metal content were also determined. The percentage of zinc in fractions was in the following order: F3 (31.8%) > F1 (30.6%) > F2 (27.8%) > F4 (9.8%), for chromium F4 (88.7%) > F3 (5.4%) > F1 (3.2%) > F2 (2.7%), and in the case of cobalt F4 (59.8%) > F1 (14.3%) > F2 (13.6%) > F3 (12.3%). Mobile metal pool (F1-F3) gathered the most of zinc (90.2 %) and the least of chromium (11.3%).
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