腐殖酸、高岭土和铜在含水层介质中的协同迁移
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吉林建筑大学

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X523

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国家自然科学基金(51238001, 51408259)吉林省科技发展计划项目(20140520154JH)


Meng Qingling,Jiang YanKey Laboratory of Songliao Aquatic Environment, Ministry of Education, College of Civil and Environment Engineering, Jilin Jian Zhu University,Changchun Jinlin 130118
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Jilin Jianzhu University

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    摘要:

    通过室内模拟柱实验,设计不同污染次序实验,开展高岭土、腐殖酸和Cu在含水层介质的协同迁移研究。研究结果表明:在预先吸附了Cu的砂柱中,高岭土对Cu解吸作用微弱,腐殖酸显著促进了Cu在石英砂柱的解吸,而混合注入腐殖酸和高岭土溶液Cu的解吸程度要低于单独注入腐殖酸,说明在混合溶液中,高岭土占据了腐殖酸的吸附点位;腐殖酸对高岭土的迁移有显著促进作用。

    Abstract:

    This study evaluates co-transport of humic acid, kaolinite and copper in saturated porous media by sand column. The results indicated that Kaolin colloid promote Cu migration effect is not obvious. Humic acid facilitated Cu transport was found. But mixed kaolinite and humic acid facilitated Cu lower compared with single humic acid. In the presence of humic acid, the mobility of colloids increases considerably. The co-presence of HA and kaolin slightly decreased HA transport in sand column compared with that in the presence of HA alone. The colloid-facilitated Cu transport and the stripping effect of Cu from sand column have important implications for risk assessments of Cu mobility in soil environment.

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孟庆玲,姜岩,张家豪. 腐殖酸、高岭土和铜在含水层介质中的协同迁移[J]. 科学技术与工程, 2019, 19(15): 349-352.
孟庆玲, and. Meng Qingling, Jiang YanKey Laboratory of Songliao Aquatic Environment, Ministry of Education, College of Civil and Environment Engineering, Jilin Jian Zhu University, Changchun Jinlin 130118[J]. Science Technology and Engineering,2019,19(15):349-352.

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  • 收稿日期:2019-01-09
  • 最后修改日期:2019-02-27
  • 录用日期:2019-03-05
  • 在线发布日期: 2019-06-10
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