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|Table of Contents|

不同炭化温度的竹炭对重金属离子的吸附性能

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2009年06期
Page:
20
Column:
研究论文
publishdate:
2009-11-30

Article Info:/Info

Title:
Adsorption properties of bamboo charcoal under different carbonized temperatures for heavy metal ions
Author(s):
ZHANG Wenbiao1 QIAN Xinbiao2 MA Lingfei1
1.School of Engineering, Zhejiang Forestry College, Lin’an 311300, China; 2.School of Environmental Science and Technology, Zhejiang Forestry College, Lin’an 311300, China
Keywords:
bamboo charcoal carbonized temperature specific surface area heavy metal ions absorption rate
Classification number :
TQ424
DOI:
10.3969/j.jssn.1000-2006.2009.06.005
Document Code:
A
Abstract:
In this paper, bamboo materials was carbonized at varying temperature and used to adsorb single and mixture solutions of heavy metal ions. The results showed that bamboo charcoal has physical and chemical adsorption. The absorption properties were related to the specific surface area, pore size and the pH value. Absorption rate of bamboo charcoal was enhanced with the impregnated time. Bamboo charcoal adsorption of heavy metal ions had selectivity. Bamboo charcoal with carbonization temperature of 800℃ had better adsorption for Hg2+, Pb2+, Cr6+, but bamboo charcoal which was carbonized at 1 000℃ had good adsorption for Cd2+. When the mixture of several metal ions coexisted, the property of bamboo charcoal adsorption for heavy metal ions had the characteristics of synergy and impede. If it was compared with a single heavy metal ions, the adsorption rates of Pb2+, Hg2+, Cr6+ increased and the adsorption rate of Cd2+ decreased.

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Last Update: 2009-11-30