重金属污染土壤的电动-植物联合修复技术研究进展

魏树和; 徐雷; 韩冉; 窦薛楷; 杨微

doi:10.3969/j.issn.1000-2006.201807011

魏树和,徐雷,韩冉,窦薛楷,杨微

南京林业大学学报（自然科学版） ›› 2019, Vol. 43 ›› Issue (01) : 154-160.

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南京林业大学学报（自然科学版） ›› 2019, Vol. 43 ›› Issue (01) : 154-160. DOI: 10.3969/j.issn.1000-2006.201807011

综合述评

重金属污染土壤的电动-植物联合修复技术研究进展

魏树和¹,徐雷^1,2,韩冉^1,2,窦薛楷^1,2,杨微^1,2

作者信息 +

Review on combined electrokinetic and phytoremediation technology for soil contaminated by heavy metal

WEI Shuhe¹, XU Lei^{1, 2}, HAN Ran ^1,2, DOU Xuekai ^1,2, YANG Wei ^1,2

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摘要

土壤电动修复是一种高效的原位修复技术。笔者就电场对植物富集重金属的作用、电场配置方式及其与添加剂的协同影响研究现状进行了分析。多数研究表明:选用合适的电场配置和电场强度,不仅能够提高土壤中重金属的有效性,进而促进植物对污染土壤中重金属的富集,而且对植物生物量具有一定的促进作用。总体来说,选用交流电场或是低强度的直流电场不仅能够提高重金属的生物有效性,还能够避免电场给植物造成的不利影响,是针对重金属污染土壤修复较好的选择。笔者认为,在重金属污染土壤植物修复领域,未来的研究重点在于加强超富集植物与电场联合修复机理研究,研发高效低廉环境友好型强化剂,最终形成针对一种或多种重金属污染土壤的植物-电动联合修复关键技术。

Abstract

Electrokinetic remediation of soil is an efficient in situ remediation technology. In this article, the effects of electric fields such as voltage application, electric field intensity, additives and other factors on heavy metal accumulation in plants are reviewed. Most researches showed that choosing appropriate electric field configurations and intensities can improve the availability of heavy metals in soil, thereby promoting their uptake by plants and to some certain increasing plant biomass. In general, the selection of AC or low intensity DC electric fields can improve the bioavailability of heavy metals and also help to avoid the negative effects of electric fields on plants. Future research should focus on examining the mechanism of combined remediation by hyperaccumulators and electric fields, develop key methods of plant remediation such as high efficiency and low cost environmentally-friendly strengthening reagents, and create coupled electrokinetic remediation and phytoremediation technology for one or more heavy metal contaminated soils.

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魏树和,徐雷,韩冉,窦薛楷,杨微. 重金属污染土壤的电动-植物联合修复技术研究进展[J]. 南京林业大学学报（自然科学版）. 2019, 43(01): 154-160 https://doi.org/10.3969/j.issn.1000-2006.201807011

WEI Shuhe, XU Lei, HAN Ran , DOU Xuekai , YANG Wei. Review on combined electrokinetic and phytoremediation technology for soil contaminated by heavy metal[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2019, 43(01): 154-160 https://doi.org/10.3969/j.issn.1000-2006.201807011

中图分类号： S714 X53

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基金

收稿日期:2018-07-08 修回日期:2018-11-06基金项目:国家自然科学基金项目(41571300,31870488); 国家重点研发计划(2016YFD0800802)。第一作者:魏树和(shuhewei@iae.ac.cn),研究员,博士, ORCID(0000-0001-6983-4394)。引文格式:魏树和,徐雷,韩冉,等. 重金属污染土壤的电动-植物联合修复技术研究进展[J]. 南京林业大学学报(自然科学版),2019,43(1):154-160.