Chemical fractionation method for characterization of biomass-based bottom and fly ash fractions from large-sized power plant of an integrated pulp and paper mill complex

Abstract

The aim of this study was to extract the biomass-based bottom and fly ash fractions by a three-stage fractionation method for water-soluble (H2O), ammonium-acetate (CH3COONH4) and hydrochloric acid (HCl) fractions in order to access the leaching behaviour of these residues. Except for Mo, S, Na and elements whose concentrations were lower than the detection limits, the extractable element concentrations in both ash fractions followed the order H2O<CH3COONH4<HCl. The elements concentrations in this study were also lower than those in our previous studies, in which certain extraction stages followed the BCR extraction procedure.

Keywords

ash; extraction; forest industry; landfilling; leaching; heavy metals; waste

Published in

Transactions of Nonferrous Metals Society of China
2014, volume: 24, number: 2, pages: 588-596
Publisher: ELSEVIER SCIENCE BV

SLU Authors

• Mäkelä, Mikko

  • Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Other Chemistry Topics

Publication identifier

• DOI: https://doi.org/10.1016/S1003-6326(14)63099-5

Permanent link to this page (URI)

https://res.slu.se/id/publ/67570