The adsorption of heavy metals by different sorbents under various incineration conditions

被引：74

作者：

Chen, JC ^{[1
]}

Wey, MY ^{[1
]}

Lin, YC ^{[1
]}

机构：

[1] Natl Chung Hsing Univ, Dept Environm Engn, Taichung 40227, Taiwan

来源：

CHEMOSPHERE | 1998年 / 37卷 / 13期

关键词：

D O I：

10.1016/S0045-6535(98)00161-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The emission of heavy metals can be controlled by adding solid sorbents into the combustion chamber during incineration processes. The objective of this work was to experimentally study the adsorption efficiency of different sorbents for heavy metals under various incineration conditions. Each sorbent has its optimum operating temperature. Kaolinite and aluminum oxide have the best adsorption efficiency at 800 degrees C, and bauxite is at 700 degrees C. The adsorption efficiencies of the three sorbents for the four heavy metals ail follow the sequence of Pb > Cu > Cr >Cd. The presence of inorganic chloride (NaCl) and sulfate (Na2SO4) increases the adsorption efficiency of the sorbents, but organic chloride PVC decreases the adsorption efficiency. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：2617 / 2625

页数：9

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