| 地下水系统中镍污染和天然胶体共迁移特征 |
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| 引用本文： | 杨悦锁,朱一丹,张文卿,武宇辉,Yu Tong,张大志.地下水系统中镍污染和天然胶体共迁移特征[J].吉林大学学报(地球科学版),2020,50(1):226-233. |
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| 作者姓名： | 杨悦锁 朱一丹 张文卿 武宇辉 Yu Tong 张大志 |
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| 作者单位： | 1. 地下水资源与环境教育部重点实验室(吉林大学), 长春 130021;2. 区域污染环境生态修复教育部重点实验室(沈阳大学), 沈阳 110044;3. 巴黎萨克雷大学土壤力学、结构和材料实验室, 法国 伊维特河畔吉夫 91190;4. 黑龙江省生态地质调查研究总院, 哈尔滨 150030 |
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| 基金项目： | 国家自然科学基金项目（41472237）；沈阳市科技计划项目（Z17-5-079）；黑龙江省生态地质专项（201507） |
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| 摘 要： | 为了对地下水系统中天然胶体与Ni2+的共迁移特征进行研究，通过静态吸附实验和石英砂模拟含水层介质柱实验研究了土壤胶体对Ni2+在地下水中运移的影响，以及pH、离子强度（IS）、有机质等对土壤胶体吸附Ni2+的影响。结果表明：随着pH值升高，土壤胶体对Ni2+的吸附量增加；离子强度的增加会显著地降低土壤胶体吸附Ni2+的能力；腐殖酸（HA）的存在会增强胶体对Ni2+的吸附能力；在有胶体的情况下，Ni2+穿透砂柱的时间会缩短，吸附能力增强，吸附量增加，但当离子强度增加时，虽然Ni2+穿透砂柱的时间也被缩短，但是吸附量却降低。
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| 关 键 词： | 重金属 镍 吸附 共迁移 胶体 地下环境 |
| 收稿时间： | 2018-09-19 |
Co-Migration of Nickel and Natural Colloids in Groundwater System |
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| Yang Yuesuo,Zhu Yidan,Zhang Wenqing,Wu Yuhui,Yu Tong,Zhang Dazhi.Co-Migration of Nickel and Natural Colloids in Groundwater System[J].Journal of Jilin Unviersity:Earth Science Edition,2020,50(1):226-233. |
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| Authors: | Yang Yuesuo Zhu Yidan Zhang Wenqing Wu Yuhui Yu Tong Zhang Dazhi |
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| Institution: | 1. Key Laboratory of Groundwater Environment and Resources, Ministry of Education(Jilin University), Changchun 130021, China;2. Key Laboratory of Regional Environment and Eco-Restoration, Ministry of Education(Shenyang University), Shenyang 110044, China;3. Laboratory of Soil Mechanics, Structures and Materials, University of Paris-Saclay, 91190, Gif sur Yvette, France;4. General Institute of Eco-Geologic Survey of Heilongjiang Province, Harbin 150030, China |
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| Abstract: | In order to study the co-migration characteristics of natural soil colloids and Ni2+ in a groundwater system, the effect of natural soil colloids on the migration of Ni2+ in groundwater and the influence of pH, ionic strength (IS), and organic matter on the adsorption of Ni2+ by soil colloids were analyzed by means of static adsorption experiments and column technique of quartz sand simulation medium. The results show that the adsorption of heavy metals on soil colloids was increased by increasing pH, but reduced significantly by the increase of ionic strength; the adsorption capacity of colloids on Ni2+ was increased by the presence of humic acid; in the presence of colloids, the time of the Ni2+ penetrating sand column was shortened, the adsorption capacity of soil colloids was enhanced, and the amount of adsorption was increased; however, when the ionic strength increased, although the time of Ni2+ penetrating through the sand column was shortened, the amount of adsorption was decreased. |
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| Keywords: | heavy metal nickel adsorption co-migration colloids subsurface environment |
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