不同淋洗剂和淋洗条件下重金属污染土壤淋洗修复研究进展

孙涛; 陆扣萍; 王海龙

doi:10.11833/j.issn.2095-0756.2015.01.021

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不同淋洗剂和淋洗条件下重金属污染土壤淋洗修复研究进展

孙涛 , 陆扣萍 , 王海龙

文章导航 > 浙江农林大学学报 > 2015 > 32(1): 140-149

孙涛, 陆扣萍, 王海龙. 不同淋洗剂和淋洗条件下重金属污染土壤淋洗修复研究进展[J]. 浙江农林大学学报, 2015, 32(1): 140-149. doi: 10.11833/j.issn.2095-0756.2015.01.021

引用本文:

SUN Tao, LU Kouping, WANG Hailong. Advance in washing technology for remediation of heavy metal contaminated soils: effects of eluants and washing conditions[J]. Journal of Zhejiang A&F University, 2015, 32(1): 140-149. doi: 10.11833/j.issn.2095-0756.2015.01.021

Citation:

SUN Tao, LU Kouping, WANG Hailong. Advance in washing technology for remediation of heavy metal contaminated soils: effects of eluants and washing conditions[J]. Journal of Zhejiang A&F University, 2015, 32(1): 140-149. doi: 10.11833/j.issn.2095-0756.2015.01.021

不同淋洗剂和淋洗条件下重金属污染土壤淋洗修复研究进展

doi: 10.11833/j.issn.2095-0756.2015.01.021

孙涛^1,2,
陆扣萍^1,2,
王海龙^1,2, ,

1.
浙江农林大学浙江省森林生态系统碳循环与固碳减排重点实验室，浙江临安 311300;
2.
浙江农林大学环境与资源学院，浙江临安 311300

基金项目:

国家自然科学基金资助项目（41271337）;浙江农林大学科研发展基金（人才引进）项目（2010FR097）

详细信息

作者简介: 孙涛，从事土壤生态环境修复研究。

通信作者: 王海龙，教授，博士，博士生导师，从事土壤污染修复等研究。

中图分类号: X53；S158

Advance in washing technology for remediation of heavy metal contaminated soils: effects of eluants and washing conditions

SUN Tao^1,2,
LU Kouping^1,2,
WANG Hailong^{1,2
, ,}

1.
Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration，Zhejiang A & F University, Lin’an 311300，Zhejiang，China;
2.
School of Environmental and Resource Sciences，Zhejiang A & F University, Lin’an 311300，Zhejiang，China

摘要: 土壤淋洗修复技术作为一种快速有效的污染土壤治理技术越来越受到重视，其适用于受高浓度重金属污染的土壤。着重阐述了近年来不同淋洗剂以及淋洗条件对重金属污染土壤的修复效果，并综述了不同淋洗剂对不同形态重金属淋洗效果，讨论了淋出液的处理及淋洗剂的回收，同时介绍了国内外重金属污染土壤淋洗修复工程实践。指出在众多淋洗剂中以天然有机酸因低生态毒性和高降解性而最具有研究前景。应综合考虑各影响因素，选择最优条件达到最好的修复效果，而在选择淋洗剂时，也应考虑其本身的生物降解性和生态毒性。无论哪种淋洗剂，均以可交换态和碳酸盐结合态形式存在的重金属容易被淋出，而相对稳定的残渣态较难去除。本文最后提出了研究中存在的问题，并展望了今后淋洗技术的研究方向，旨在为研究重金属污染土壤修复技术提供理论依据。表4参70
- 土壤学 /
- 重金属污染 /
- 土壤修复 /
- 综述 /
- 土壤淋洗技术 /
- 土壤污染 /
- 生物有效性
Abstract: As an effective technology for rapid remediation of soils highly contaminated with heavy metals, soil washing has increasingly received attention in recent years. This paper provides an overview on recent advances in research on the efficacy of various eluants and washing conditions associated with the washing technology for remediation of soils contaminated with heavy metals. Effect of eluants on washing efficiency of various fractions of heavy metals in soils, and the treatment and reuse of the spent washing solutions were discussed. How to treat and recycle waste washing solutions after soil being washed was discussed as well. Among the eluants applied in the global remediation practices, natural organic acids have been recognized as the most promising chemicals for soil washing, because of their low ecotoxicity and high biodegradability which have been considered as important criteria for eluants selection. Regardless of the eluant type, heavy metals in exchangeable and carbonate fraction are most likely to be removed, whereas those in residual fraction are relatively stable and difficult to be removed with soil washing. Directions for further research were also proposed to advance soil washing technology. ［Ch, 4 tab. 70 ref.］
- soil science /
- heavy metal contamination /
- soil remediation /
- review /
- soil washing /
- soil contamination /
- bioavailability

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不同淋洗剂和淋洗条件下重金属污染土壤淋洗修复研究进展

doi: 10.11833/j.issn.2095-0756.2015.01.021

1. 浙江农林大学浙江省森林生态系统碳循环与固碳减排重点实验室，浙江临安 311300;

2. 浙江农林大学环境与资源学院，浙江临安 311300

基金项目:

国家自然科学基金资助项目（41271337）;浙江农林大学科研发展基金（人才引进）项目（2010FR097）

作者简介:
孙涛，从事土壤生态环境修复研究。

通信作者: 王海龙，教授，博士，博士生导师，从事土壤污染修复等研究。

收稿日期: 2014-03-19
修回日期: 2014-06-05
刊出日期: 2015-02-20

中图分类号: X53；S158

关键词:

摘要: 土壤淋洗修复技术作为一种快速有效的污染土壤治理技术越来越受到重视，其适用于受高浓度重金属污染的土壤。着重阐述了近年来不同淋洗剂以及淋洗条件对重金属污染土壤的修复效果，并综述了不同淋洗剂对不同形态重金属淋洗效果，讨论了淋出液的处理及淋洗剂的回收，同时介绍了国内外重金属污染土壤淋洗修复工程实践。指出在众多淋洗剂中以天然有机酸因低生态毒性和高降解性而最具有研究前景。应综合考虑各影响因素，选择最优条件达到最好的修复效果，而在选择淋洗剂时，也应考虑其本身的生物降解性和生态毒性。无论哪种淋洗剂，均以可交换态和碳酸盐结合态形式存在的重金属容易被淋出，而相对稳定的残渣态较难去除。本文最后提出了研究中存在的问题，并展望了今后淋洗技术的研究方向，旨在为研究重金属污染土壤修复技术提供理论依据。表4参70

English Abstract

Advance in washing technology for remediation of heavy metal contaminated soils: effects of eluants and washing conditions

1. Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration，Zhejiang A & F University, Lin’an 311300，Zhejiang，China;

2. School of Environmental and Resource Sciences，Zhejiang A & F University, Lin’an 311300，Zhejiang，China

Received Date: 2014-03-19
Rev Recd Date: 2014-06-05
Publish Date: 2015-02-20

Keywords:

Abstract: As an effective technology for rapid remediation of soils highly contaminated with heavy metals, soil washing has increasingly received attention in recent years. This paper provides an overview on recent advances in research on the efficacy of various eluants and washing conditions associated with the washing technology for remediation of soils contaminated with heavy metals. Effect of eluants on washing efficiency of various fractions of heavy metals in soils, and the treatment and reuse of the spent washing solutions were discussed. How to treat and recycle waste washing solutions after soil being washed was discussed as well. Among the eluants applied in the global remediation practices, natural organic acids have been recognized as the most promising chemicals for soil washing, because of their low ecotoxicity and high biodegradability which have been considered as important criteria for eluants selection. Regardless of the eluant type, heavy metals in exchangeable and carbonate fraction are most likely to be removed, whereas those in residual fraction are relatively stable and difficult to be removed with soil washing. Directions for further research were also proposed to advance soil washing technology. ［Ch, 4 tab. 70 ref.］

引用本文: