| 含铁材料修复砷污染土壤的研究进展 |
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| 引用本文： | 唐彬,邱亚群,胡立琼,雷鸣.含铁材料修复砷污染土壤的研究进展[J].安徽农业科学,2014(12):3692-3695,3729. |
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| 作者姓名： | 唐彬 邱亚群 胡立琼 雷鸣 |
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| 作者单位： | 湖南省环境保护科学研究院;中南林业科技大学; |
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| 摘 要： | 介绍了含铁材料修复砷污染土壤的研究进展,对土壤中砷的不同形态以及含铁材料固砷的效果、机理及其影响因素进行了分析.分析表明,含铁材料治理砷污染土壤具有较好的效果,且含铁材料固化砷的效果顺序大致为三价铁＞二价铁＞铁的氢氧化物、铁的氧化物、聚合硫酸铁;固砷的机理主要是铁砷沉淀、离子交换和吸附等作用;影响含铁材料固砷效果的因素主要有含铁材料的种类及添加量、土壤pH和氧化还原电位以及离子竞争等作用.
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| 关 键 词： | 含铁材料 土壤 砷污染 修复 研究进展 |
Research Advances of Remedying Arsenic-contaminated Soil by Iron-containing Material |
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| Institution: | TANG Bin, QIU Ya-qun et al ( Hunan Re- search Academy of Environmental Sciences, Changsha, Hunan 41304; Central South University of Forestry and Technology, Changsha, Hu- nan 410004) |
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| Abstract: | Advances of curing arsenic-contaminated soil with iron-containing material are introduced, and different fractions of arsenic in the soil, the effect of iron-containing materials on curing arsenic, mechanisms and influencing factors are analyzed. Analysis showed iron-contai- ning material solidify arsenic in soil with good results, and the effect of curing order generally is ferric 〉 ferrous 〉 iron hydroxide, iron oxide, polymeric ferric sulfate. The main curing mechanism of iron-arsenic is precipitation of iron-arsenic, ion exchange and adsorption, etc. The main factors influencing of iron-containing material curing arsenic are mainly types and dosage of iron-containing material, soil pH and redox potential and ion competition, etc. |
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| Keywords: | Iron-containing material Soil Arsenic contamination Remediation Research advances |
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