Fraction Distribution Changes of Heavy Metals in Co-Pyrolysis of Sewage Sludge and Corn Straw

Abstract:

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Maiz’s short sequential extraction procedure was used to extract the heavy metals in the carbon residues made from sewage sludge by co-pyrolysis with corn straw. The content of heavy metals in the residues was determined by ICP-MS to study the fraction distribution changes of heavy metals. It is concluded that the content of mobile and mobilization heavy metals exsisted in the residue decrease and the content of residual heavy metals increase due to the co-pyrolysis. The co-pyrolysis temperature has great effect on the fraction distribution changes of heavy metals. The content of residual fraction for Cr, Ni, Pb is up to the top at 700°C and for Cd、Cu、Zn is at 500°C. The carbon residues are unhazardous and safe.

Info:

Periodical:

Advanced Materials Research (Volumes 236-238)

Edited by:

Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao

Pages:

187-191

DOI:

10.4028/www.scientific.net/AMR.236-238.187

Citation:

Q. R. Zhang et al., "Fraction Distribution Changes of Heavy Metals in Co-Pyrolysis of Sewage Sludge and Corn Straw", Advanced Materials Research, Vols. 236-238, pp. 187-191, 2011

Online since:

May 2011

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Price:

$35.00

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