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CLC number: X705

On-line Access: 2010-07-06

Received: 2009-07-07

Revision Accepted: 2009-12-25

Crosschecked: 2010-06-11

Cited: 9

Clicked: 3664

Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2010 Vol.11 No.7 P.530-537


Combustion characteristics of tannery sludge and volatilization of heavy metals in combustion

Author(s):  Xu-guang Jiang, Chun-yu Li, Zhen-wei Fei, Yong Chi, Jian-hua Yan

Affiliation(s):  State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   jiangxg@zju.edu.cn

Key Words:  Tannery sludge, Combustion, Heavy metal volatilization, Thermogravimetric analysis (TGA), Combustion kinetics

Xu-guang Jiang, Chun-yu Li, Zhen-wei Fei, Yong Chi, Jian-hua Yan. Combustion characteristics of tannery sludge and volatilization of heavy metals in combustion[J]. Journal of Zhejiang University Science A, 2010, 11(7): 530-537.

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publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Combustion characteristics of tannery sludge and volatilization of heavy metals in combustion
%A Xu-guang Jiang
%A Chun-yu Li
%A Zhen-wei Fei
%A Yong Chi
%A Jian-hua Yan
%J Journal of Zhejiang University SCIENCE A
%V 11
%N 7
%P 530-537
%@ 1673-565X
%D 2010
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0900414

T1 - Combustion characteristics of tannery sludge and volatilization of heavy metals in combustion
A1 - Xu-guang Jiang
A1 - Chun-yu Li
A1 - Zhen-wei Fei
A1 - Yong Chi
A1 - Jian-hua Yan
J0 - Journal of Zhejiang University Science A
VL - 11
IS - 7
SP - 530
EP - 537
%@ 1673-565X
Y1 - 2010
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0900414

Incineration is considered one of the most readily available techniques for sewage sludge disposal, including tannery sludge, which often contains significant amounts of volatile heavy metals. The combustion characteristics and kinetic analysis of tannery sludge were investigated using thermogravimetric analysis (TGA) at a heating rate of 30 °C/min in 50–950 °C. In addition to confirming that tannery sludge has a high content of volatile material and ash, it was further discovered that almost all the zinc (Zn) in tannery sludge is volatilized at 900 °C. The degree of volatilization for heavy metals at 900 °C followed the order of Zn>Cd>Cu>Mn>Pb>Cr. Moreover, the volatilization of these heavy metals increased with temperature. It is thus concluded that, to avoid heavy metal volatization during incineration disposal, 800 °C is a reasonable incineration temperature.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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