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酸雨入渗对水泥固化铅污染土淋滤特性的影响研究

蒋宁俊, 杜延军, 刘松玉, 李晨阳, 李文涛

蒋宁俊, 杜延军, 刘松玉, 李晨阳, 李文涛. 酸雨入渗对水泥固化铅污染土淋滤特性的影响研究[J]. 岩土工程学报, 2013, 35(4): 739-744.
引用本文: 蒋宁俊, 杜延军, 刘松玉, 李晨阳, 李文涛. 酸雨入渗对水泥固化铅污染土淋滤特性的影响研究[J]. 岩土工程学报, 2013, 35(4): 739-744.
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JIANG Ning-jun, DU Yan-jun, LIU Song-yu, LI Chen-yang, LI Wen-tao. Leaching behaviors of cement-based solidification/stabilization treated lead contaminated soils under effects of acid rain[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(4): 739-744.
Citation: JIANG Ning-jun, DU Yan-jun, LIU Song-yu, LI Chen-yang, LI Wen-tao. Leaching behaviors of cement-based solidification/stabilization treated lead contaminated soils under effects of acid rain[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(4): 739-744.
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酸雨入渗对水泥固化铅污染土淋滤特性的影响研究  English Version

  • 1. 东南大学交通学院岩土工程研究所，江苏 南京 210096; 2. 中国科学院武汉岩土力学研究所，湖北 武汉 430071

基金项目: 国家自然科学基金项目（50878052，40972173）；江苏省自然科学基金项目（BK2012022，BK2010060）
详细信息
    作者简介:

    蒋宁俊(1988- )，男，博士研究生，主要从事环境岩土工程研究。E-mail: jnj1988_seu@yahoo.com.cn。

  • 中图分类号: TU47

Leaching behaviors of cement-based solidification/stabilization treated lead contaminated soils under effects of acid rain

  • 1. Institute of Geotechnical Engineering, School of Transportation, Southeast University, Nanjing 210096, China; 2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China

摘要

    摘要
  • 摘要: 以水泥固化铅污染土（Pb-CHMS）为研究对象，通过Batch淋滤试验和柔性壁土柱酸雨入渗试验，对Pb-CHMS在酸雨作用下的淋滤特性进行了研究。Batch试验结果表明，当酸雨pH=2.5时，滤出液pH显著降低，钙（Ca）浓度显著增加；铅（Pb）浓度则随pH降低而减小。柔性壁土柱酸雨入渗试验结果表明，Pb-CHMS渗透系数随渗透量和时间增加而降低，酸雨入渗导致渗透系数降低速率减缓；pH、Ca和Pb溶出量随渗透量降低；并建立了Pb-CHMS室内土柱酸雨入渗时间与所模拟的固化污染土体酸雨入渗时间的关系。
    Abstract: The effects of acid rain on leaching behaviors of cement solidified/stabilized lead contaminated soils are investigated. Laboratory tests including batch leaching and column infiltration tests are performed. The results of batching leaching tests show that pH and Ca concentration of equilibrium solution drop significantly when the initial pH of artificial acid rain is 2.5. Pb concentration of equilibrium solution otherwise decreases with the decrease of the initial pH of artificial acid rain. Through the column infiltration tests, it is found that the hydraulic conductivity of soils decreases with the increase of PVF. The decreasing rate in the case of the acid rain is lower than that in the case of the distilled water. pH, Ca and Pb concentration of effluent solution decrease with the increase of PVF. Meanwhile, in-situ acid rain infiltration time is correlated with laboratory acid rain infiltration time.
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    • 参考文献(12)
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出版历程
  • 收稿日期:  2012-04-25
  • 发布日期:  2013-04-17

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