Comparison of Digestion Methods for Analysis of Heavy Metals in MSWI Bottom Ash

Abstract:

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This work aims to develop a proper digestion method for measurement of heavy metal content in municipal solid waste incineration (MSWI) bottom. Different digestion methods by HNO3, HNO3/HCl, HNO3/HCl/HClO4, HNO3/HCl/H2O2, HNO3/HClO4, HNO3/H2O2, were compared in digestion efficiency, and Cu, Pb, Zn and Cd were analyzed using atomic absorption spectrum (AAS). The method using mixed HNO3/HCl/HClO4 was recommended for digestion of MSWI slag for measurement of Cu, Pb, Zn, and the method of HNO3/H2O2 recommended for digestion for measurement of Cd.

Info:

Periodical:

Key Engineering Materials (Volumes 474-476)

Edited by:

Garry Zhu

Pages:

1075-1080

DOI:

10.4028/www.scientific.net/KEM.474-476.1075

Citation:

H. Y. Zhang et al., "Comparison of Digestion Methods for Analysis of Heavy Metals in MSWI Bottom Ash", Key Engineering Materials, Vols. 474-476, pp. 1075-1080, 2011

Online since:

April 2011

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$35.00

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