Extraction of chromium, copper, and arsenic from CCA-treated wood using biodegradable chelating agents

被引：27

作者：

Ko, Chun-Han ^{[2
]}

Chen, Pin-Jui ^{[2
]}

Chen, Shu-Hui ^{[1
]}

Chang, Fang-Chih ^{[1
]}

Lin, Far-Ching ^{[2
]}

Chen, Ke-Kung ^{[3
]}

机构：

[1] Natl Cheng Kung Univ, Instrument Ctr, Tainan 701, Taiwan

[2] Natl Taiwan Univ, Sch Forestry & Resources Conservat, Taipei 106, Taiwan

[3] All Points Enterprise Inc, Taipei 114, Taiwan

来源：

BIORESOURCE TECHNOLOGY | 2010年 / 101卷 / 05期

关键词：

CCA-treated wood; EDDS; Chelating extraction; (CCA)-TREATED WOOD; REMOVAL; METALS; REMEDIATION; LEACHATE; ACID;

D O I：

10.1016/j.biortech.2009.07.027

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The aim of this study was to investigate the biodegradable chelating agents S,S-ethylenediaminedisuccinic acid (SS-EDDS) and nitrilotriacetic acid (NTA) as potential alternatives and compare them with ethylenediaminetetraacetic acid (EDTA) for effectiveness. Extraction of heavy metals from chromated copper arsenate (CCA)-treated wood with EDDS, NTA, or EDTA solvent was evaluated at various solvent pH levels and stoichiometric ratios. Based on the present data, the recommended extraction conditions are pH 4.0 and EDDS-CCA stoichiometric ratios of 10. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1528 / 1531

页数：4

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