Treatment of waste incinerator air-pollution-control residues with FeSO4: Concept and product characterisation.

Autor: Lundtorp, K., Jensen, D. L., Sørensen, M. A., Christensen, T. H., Mogensen, E. P. B.
Předmět:
Zdroj: Waste Management & Research: The Journal for a Sustainable Circular Economy; Feb2002, Vol. 20 Issue 1, p69, 9p
Abstrakt: Describes a concept for treatment of air-pollution-control (APC) residues from waste incineration and characterizes the wastewater and stabilized residues generated by the process. The process involves mixing of APC-residues with a ferrous sulphate solution and subsequent oxidation of the suspension). The process results in a significant reduction in the leaching of salts and heavy metals from the residue, by washing out most of the salts and by binding the heavy metals in the iron oxides formed. In the laboratory, a semidry gas-cleaning residue and a fly ash were treated by the process. The effect on elements that form oxyanions is marginal and in the current process there is no reduction in the release of Hg.
Databáze: Complementary Index