Lancaster EPrints

Arrested municipal waste incinerator ash as a source of heavy metals to the UK environment.

Mitchell, D. and Wild, S. R. and Jones, K. C. (1992) Arrested municipal waste incinerator ash as a source of heavy metals to the UK environment. Environmental Pollution, 76 (1). pp. 79-84.

Full text not available from this repository.

Abstract

Arrested fly ash samples from most currently operating municipal solid waste (MSW) incinerators in the UK have been analysed for a range of elements. Some of the more important heavy metals ranged in concentration as follows: Cd, 21–4646 (median = 271) mg kg−1; Cu, 296–1307 (642) mg kg−1; Cr, 44–1328 (574) mg kg−1; Ni, 45–2204 (74) mg kg−1; Pb, 447–9704 (4337) mg kg−1; and Zn, 2285-13 500 (9232) mg kg−1. These concentrations represent considerable enrichments relative to median UK soil concentrations. Enrichment ratios (defined as median fly ash: median UK soil) were as follows: Mn 1·6; Co 2·6; Ni 3·3; Ba 11; Sr 11; Cr 15; Cu 35; Pb 108; Zn 113; Cd 387. It is estimated that MSW incinerator ash contributes c. 15 t Cd and 241 t Pb to UK landfill sites per annum. These figures compare with previous studies by Hutton & Symon (Hutton, M. & Symon, C. (1986). The quantities of cadmium, lead, mercury and arsenic entering the UK environment from human activities. Sci. Total Environ., 57, 129-50.) which estimated that annual inputs to UK landfills from coal fly ash are c. 60 t Cd and 1270 t Pb. However, it is argued that metals associated with MSW ashes are potentially of greater environmental significance than in coal ashes, because they are much more available and present at much higher concentrations.

Item Type: Article
Journal or Publication Title: Environmental Pollution
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 22816
Deposited By: ep_ss_importer
Deposited On: 08 Jan 2009 10:07
Refereed?: No
Published?: Published
Last Modified: 26 Jul 2012 16:06
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/22816

Actions (login required)

View Item