Abstract

This paper describes the leaching and stabilization of oxyanion forming elements, mainly As, Se and Sb from solid wastes (sludge, fly ash, bottom ash). It is argued that knowledge of the leaching behaviour of oxyanions from waste is of high importance relative to wastewater treatment. Experiments and modelling demonstrate that immobilization of the oxyanions is mainly due to precipitation with Ca and to adsorption and solid solution formation with minerals such as calcite, gypsum, ettringite, HFO and AAM.

Keywords

Oxyanions; leaching; stabilization; waste; adsorption; precipitation; solid solution; arsenic; selenium; antimony

Published in

NATO Science for Peace and Security Series C: Environmental Security
2010, pages: 149-159
Book title: Water Treatment Technologies for the Removal of High-Toxicity Pollutants
ISBN: 978-90-481-3495-3, eISBN: 978-90-481-3497 -7
Publisher: Springer

Conference

NATO Advanced Research Workshop on Water Treatment Technologies for the Removal of High-Toxicity Pollutants, SEP 13-17, 2008, Kosice, SLOVAKIA

UKÄ Subject classification

Geochemistry


Publication Identifiers

DOI: https://doi.org/10.1007/978-90-481-3497-7_12

Permanent link to this page (URI)

https://res.slu.se/id/publ/80972