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天然矿物组合材料渗透反应墙修复地下水镉污染

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曾婧滢, 秦迪岚, 毕军平, 罗岳平, 朱润良, 廖希谷, 张建新, 吕焕哲. 天然矿物组合材料渗透反应墙修复地下水镉污染[J]. 环境工程学报, 2014, 8(6): 2435-2442.
引用本文: 曾婧滢, 秦迪岚, 毕军平, 罗岳平, 朱润良, 廖希谷, 张建新, 吕焕哲. 天然矿物组合材料渗透反应墙修复地下水镉污染[J]. 环境工程学报, 2014, 8(6): 2435-2442.
shu
Zeng Jingying, Qin Dilan, Bi Junping, Luo Yueping, Zhu Runliang, Liao Xigu, Zhang Jianxin, Lü Runliang. Remediation of cadmium contaminated ground-water using natural mineral combination materials based permeable reactive barrier[J]. Chinese Journal of Environmental Engineering, 2014, 8(6): 2435-2442.
Citation: Zeng Jingying, Qin Dilan, Bi Junping, Luo Yueping, Zhu Runliang, Liao Xigu, Zhang Jianxin, Lü Runliang. Remediation of cadmium contaminated ground-water using natural mineral combination materials based permeable reactive barrier[J]. Chinese Journal of Environmental Engineering, 2014, 8(6): 2435-2442.
shu

天然矿物组合材料渗透反应墙修复地下水镉污染

  • 1.

    湖南省环境监测中心站, 长沙 410014

  • 2.

    国家环境保护重金属污染监测重点实验室, 长沙 410014

  • 3.

    湘潭大学环境科学与工程系, 湘潭 411105

  • 4.

    中国科学院广州地球化学研究所, 广州 510640

  • 5.

    湖南省地质研究所, 长沙 410007

  • 基金项目:

    国土资源部公益性行业科研专项（201111016-1）

  • 中图分类号: X523

Remediation of cadmium contaminated ground-water using natural mineral combination materials based permeable reactive barrier

  • 1.

    Hunan Province Environmental Monitoring Centre, Changsha 410014, China

  • 2.

    State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha 410014, China

  • 3.

    Department of Environmental Science and Engineering, Xiangtan University, Xiangtan 411105, China

  • 4.

    Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China

  • 5.

    Hunan Institute of Geology, Changsha 410007, China

  • Fund Project:

  • 摘要: 实验模拟地下环境，以天然矿物材料石灰石、海泡石和膨润土作为可渗透反应墙（PRB）填充材料，采用正交实验法设计了16种可渗透反应器，研究了天然矿物组合材料组配对污染地下水模拟液中镉污染的修复效果、出水pH、有效孔隙度和渗透系数的影响，同时对机理进行了分析。实验结果显示，组合材料对镉去除率达99.8%以上，石灰石对处理效果贡献最大，增加石灰石用量，处理效果明显改善，当石灰石含量为10%及更高时，对含镉1.0 mg/L的污染地下水模拟液处理后镉浓度低于0.7 μg/L，达到地下水质量标准GB/T 14848-93规定的II类水质标准；石灰石用量的增加对渗透系数影响不大，但出水pH呈弱碱性（7
    Abstract: In this work, the combination materials of natural minerals including bentonite, sepiolite and limestone were used as permeable reactive barrier (PRB) filling materials and 16 permeable reactors were designed with orthogonal test method to study the feasibility and efficiency of the PRB technology in the remediation of cadmium contaminated ground-water.The influences of the combination ratio of the minerals on the treatment effect of Cd contamination, the pH of effluents, the porosity and permeability of the barriers were studied. Moreover, the remediation mechanism was also analyzed. The experimental results showed that the Cd removal rates of the applied combination materials were above 99.8%.The dosage of limestone was the main factor controlling to the treatment effect of Cd, which was obviously improved by increasing the amount of limestone. When the limestone content reached 10%, the Cd concentration of simulated Cd-polluted ground-water after treatment was less than 0.7 μg/L, which can meet the class Ⅱ water quality standard according to groundwater quality criteria (GB/T 14848-93). Increasing the amount of limestone had little effect on the permeability of the barrier, but it led to a weakly alkaline effluent (7
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出版历程
  • 收稿日期:  2013-07-08
  • 刊出日期:  2014-05-29
曾婧滢, 秦迪岚, 毕军平, 罗岳平, 朱润良, 廖希谷, 张建新, 吕焕哲. 天然矿物组合材料渗透反应墙修复地下水镉污染[J]. 环境工程学报, 2014, 8(6): 2435-2442.
引用本文: 曾婧滢, 秦迪岚, 毕军平, 罗岳平, 朱润良, 廖希谷, 张建新, 吕焕哲. 天然矿物组合材料渗透反应墙修复地下水镉污染[J]. 环境工程学报, 2014, 8(6): 2435-2442.
shu
Zeng Jingying, Qin Dilan, Bi Junping, Luo Yueping, Zhu Runliang, Liao Xigu, Zhang Jianxin, Lü Runliang. Remediation of cadmium contaminated ground-water using natural mineral combination materials based permeable reactive barrier[J]. Chinese Journal of Environmental Engineering, 2014, 8(6): 2435-2442.
Citation: Zeng Jingying, Qin Dilan, Bi Junping, Luo Yueping, Zhu Runliang, Liao Xigu, Zhang Jianxin, Lü Runliang. Remediation of cadmium contaminated ground-water using natural mineral combination materials based permeable reactive barrier[J]. Chinese Journal of Environmental Engineering, 2014, 8(6): 2435-2442.
shu

天然矿物组合材料渗透反应墙修复地下水镉污染

  • 1.  湖南省环境监测中心站, 长沙 410014
  • 2.  国家环境保护重金属污染监测重点实验室, 长沙 410014
  • 3.  湘潭大学环境科学与工程系, 湘潭 411105
  • 4.  中国科学院广州地球化学研究所, 广州 510640
  • 5.  湖南省地质研究所, 长沙 410007
  • 收稿日期:  2013-07-08
基金项目:

国土资源部公益性行业科研专项（201111016-1）

摘要: 实验模拟地下环境，以天然矿物材料石灰石、海泡石和膨润土作为可渗透反应墙（PRB）填充材料，采用正交实验法设计了16种可渗透反应器，研究了天然矿物组合材料组配对污染地下水模拟液中镉污染的修复效果、出水pH、有效孔隙度和渗透系数的影响，同时对机理进行了分析。实验结果显示，组合材料对镉去除率达99.8%以上，石灰石对处理效果贡献最大，增加石灰石用量，处理效果明显改善，当石灰石含量为10%及更高时，对含镉1.0 mg/L的污染地下水模拟液处理后镉浓度低于0.7 μg/L，达到地下水质量标准GB/T 14848-93规定的II类水质标准；石灰石用量的增加对渗透系数影响不大，但出水pH呈弱碱性（7

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