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| 纳米零价铁修复Cr(Ⅵ)污染土壤的研究进展 |
| Research Progresses on Remediation of Hexavalent Chromium-contaminated Soil by Nanoscale Zero-valent Iron |
| 投稿时间：2015-06-02 |
| DOI：10.13254/j.jare.2015.0141 |
| 中文关键词: 纳米零价铁 Cr(Ⅵ)污染土壤 修复 还原 固定 |
| 英文关键词: nanoscale zero-valent iron (nZVI) Cr(Ⅵ)-contaminated soil remediation reduction immobilization |
| 基金项目:广东高校城市水环境生态治理与修复工程技术研究中心建设项目(2012gczxA005);广东省水环境生态治理与修复工程技术研究中心项目(2014B090904077) |
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| 中文摘要: |
| 随着铬盐生产、金属加工、电镀、皮革等工业活动以及污水灌溉和施用污泥等农业活动的进行,六价铬(Cr(Ⅵ))不断进入土壤中,严重污染土壤环境。纳米零价铁由于其比表面积大、反应活性高及还原能力强等优点,已日渐用于Cr(Ⅵ)污染土壤的修复中。本文概述了纳米零价铁修复Cr(Ⅵ)污染土壤的最新研究进展,总结了主要修复机理及影响因素,最后指出了纳米零价铁修复Cr(Ⅵ)污染土壤的发展前景及研究方向。 |
| 英文摘要: |
| With the development of industrial and agricultural activities, hexavalent chromium (Cr(Ⅵ)) has been widely detected in soil, especially in sites associated with chromate production, metal processing, electroplating, leather tanning, sewage irrigation and sludge fertilization. Nanoscale zero-valent iron (nZVI) has been widely used in the remediation of Cr(Ⅵ)-contaminated soil due to its large specific surface area, high reactivity and reducing capability. This paper presented the latest development of nZVI technology in the remediation of Cr(Ⅵ)-contaminated soil, and summarized the main mechanisms and its associated influencing factors. In addition, the development prospect of this technology was pointed out. |
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