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蒙脱石-OR-SH复合材料修复镉污染土壤的环境风险及时效性评价

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赵秋香, 刘文华, 冯超, 江海燕, 李锡坤. 蒙脱石-OR-SH复合材料修复镉污染土壤的环境风险及时效性评价[J]. 环境化学, 2015, 34(2): 333-338. doi: 10.7524/j.issn.0254-6108.2015.02.2014060301
引用本文: 赵秋香, 刘文华, 冯超, 江海燕, 李锡坤. 蒙脱石-OR-SH复合材料修复镉污染土壤的环境风险及时效性评价[J]. 环境化学, 2015, 34(2): 333-338. doi: 10.7524/j.issn.0254-6108.2015.02.2014060301
shu
ZHAO Qiuxiang, LIU Wenhua, FENG Chao, JIANG Haiyan, LI Xikun. Environmental risk and timeliness assessments on a smectite-OR-SH compound for reducing cadmium uptake in contaminated soils[J]. Environmental Chemistry, 2015, 34(2): 333-338. doi: 10.7524/j.issn.0254-6108.2015.02.2014060301
Citation: ZHAO Qiuxiang, LIU Wenhua, FENG Chao, JIANG Haiyan, LI Xikun. Environmental risk and timeliness assessments on a smectite-OR-SH compound for reducing cadmium uptake in contaminated soils[J]. Environmental Chemistry, 2015, 34(2): 333-338. doi: 10.7524/j.issn.0254-6108.2015.02.2014060301
shu

蒙脱石-OR-SH复合材料修复镉污染土壤的环境风险及时效性评价

  • 1.

    广东省地质实验测试中心, 广州, 510080

  • 基金项目:

    广东省财政地质专项项目(2012210)资助.

Environmental risk and timeliness assessments on a smectite-OR-SH compound for reducing cadmium uptake in contaminated soils

  • 1.

    Guangdong Province Research Center for Geoanalysis, Guangzhou, 510080, China

  • Fund Project:

  • 摘要: 以钙基蒙脱石原材料为空白对照,通过细胞活性实验和小鼠急性毒性实验对制备的土壤重金属钝化剂蒙脱石-OR-SH复合材料进行环境风险评价,结果显示,在受试样品浸出物浓度为8 mg/100 mL及以下时,蒙脱石-OR-SH及饱和吸附Cd的蒙脱石-OR-SH对K562细胞、人脐带间充质干细胞和人肝细胞的活性无显著性影响;小鼠毒性实验结果显示,其毒性分级1级,实际无毒性作用.蒙脱石-OR-SH修复Cd污染土壤的长效性盆栽研究显示,第一季的钝化效果显著,虽然之后效果依次递减,但在连续种植了四季盆栽后,蒙脱石-OR-SH对土壤中的Cd仍保持显著的钝化效果.
    Abstract: Using the cell activity and acute toxicity tests in mice, we carried out environmental risk evaluation for the smeicite-OR-SH composite material (soil heavy metal passivator), and Ca-smetite was used as the blank control. It was showed that there are no significant effects on K562, human umbilical cord mesenchymal stem human liver cells at the concentration of samples water extraction less than or equal to 8 mg/100 mL. The result of acute toxicity experimental in mice shows the toxicity grade of smeitite-OR-SH is the first grade, meaning it is non-toxic. The pot experiment shows that the passivation effect of Cd-contaminated soil is siganificant in the first season. Although the passivation effect of the smeicite-OR-SH to Cd-contaminated soil decreased after the first season, it is still effective after four seasons.
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  • 收稿日期:  2014-06-03
  • 刊出日期:  2015-02-15
赵秋香, 刘文华, 冯超, 江海燕, 李锡坤. 蒙脱石-OR-SH复合材料修复镉污染土壤的环境风险及时效性评价[J]. 环境化学, 2015, 34(2): 333-338. doi: 10.7524/j.issn.0254-6108.2015.02.2014060301
引用本文: 赵秋香, 刘文华, 冯超, 江海燕, 李锡坤. 蒙脱石-OR-SH复合材料修复镉污染土壤的环境风险及时效性评价[J]. 环境化学, 2015, 34(2): 333-338. doi: 10.7524/j.issn.0254-6108.2015.02.2014060301
shu
ZHAO Qiuxiang, LIU Wenhua, FENG Chao, JIANG Haiyan, LI Xikun. Environmental risk and timeliness assessments on a smectite-OR-SH compound for reducing cadmium uptake in contaminated soils[J]. Environmental Chemistry, 2015, 34(2): 333-338. doi: 10.7524/j.issn.0254-6108.2015.02.2014060301
Citation: ZHAO Qiuxiang, LIU Wenhua, FENG Chao, JIANG Haiyan, LI Xikun. Environmental risk and timeliness assessments on a smectite-OR-SH compound for reducing cadmium uptake in contaminated soils[J]. Environmental Chemistry, 2015, 34(2): 333-338. doi: 10.7524/j.issn.0254-6108.2015.02.2014060301
shu

蒙脱石-OR-SH复合材料修复镉污染土壤的环境风险及时效性评价

  • 1. 广东省地质实验测试中心, 广州, 510080
  • 收稿日期:  2014-06-03
基金项目:

广东省财政地质专项项目(2012210)资助.

摘要: 以钙基蒙脱石原材料为空白对照,通过细胞活性实验和小鼠急性毒性实验对制备的土壤重金属钝化剂蒙脱石-OR-SH复合材料进行环境风险评价,结果显示,在受试样品浸出物浓度为8 mg/100 mL及以下时,蒙脱石-OR-SH及饱和吸附Cd的蒙脱石-OR-SH对K562细胞、人脐带间充质干细胞和人肝细胞的活性无显著性影响;小鼠毒性实验结果显示,其毒性分级1级,实际无毒性作用.蒙脱石-OR-SH修复Cd污染土壤的长效性盆栽研究显示,第一季的钝化效果显著,虽然之后效果依次递减,但在连续种植了四季盆栽后,蒙脱石-OR-SH对土壤中的Cd仍保持显著的钝化效果.

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