兰州市宛川河中段表层沉积物中重金属元素迁移富集特征

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兰州市宛川河中段表层沉积物中重金属元素迁移富集特征

文章导航 > 沉积学报 > 2008 > 26(5): 844-849

刘艳. 兰州市宛川河中段表层沉积物中重金属元素迁移富集特征[J]. 沉积学报, 2008, 26(5): 844-849.

引用本文:

刘艳. 兰州市宛川河中段表层沉积物中重金属元素迁移富集特征[J]. 沉积学报, 2008, 26(5): 844-849.

LIU Yan. Migration and Enrichment Characteristics of Heavy Metals in Surface  Sediments of the Midreach of Wanchuan River in Lanzhou City[J]. Acta Sedimentologica Sinica, 2008, 26(5): 844-849.

Citation:

LIU Yan. Migration and Enrichment Characteristics of Heavy Metals in Surface  Sediments of the Midreach of Wanchuan River in Lanzhou City[J]. Acta Sedimentologica Sinica, 2008, 26(5): 844-849.

刘艳. 兰州市宛川河中段表层沉积物中重金属元素迁移富集特征[J]. 沉积学报, 2008, 26(5): 844-849.

引用本文:

刘艳. 兰州市宛川河中段表层沉积物中重金属元素迁移富集特征[J]. 沉积学报, 2008, 26(5): 844-849.

LIU Yan. Migration and Enrichment Characteristics of Heavy Metals in Surface  Sediments of the Midreach of Wanchuan River in Lanzhou City[J]. Acta Sedimentologica Sinica, 2008, 26(5): 844-849.

Citation:

LIU Yan. Migration and Enrichment Characteristics of Heavy Metals in Surface  Sediments of the Midreach of Wanchuan River in Lanzhou City[J]. Acta Sedimentologica Sinica, 2008, 26(5): 844-849.

兰州市宛川河中段表层沉积物中重金属元素迁移富集特征

刘艳

兰州大学资源环境学院环境科学研究所兰州 730000

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Migration and Enrichment Characteristics of Heavy Metals in Surface  Sediments of the Midreach of Wanchuan River in Lanzhou City

LIU Yan

College of Earth and Environmental Science,Lanzhou University,Lanzhou 73000

摘要: 通过对兰州市宛川河中段双店子河段表层沉积物元素分析，结合有机质含量和粒度测试，运用聚类分析和相关分析的方法，研究了重金属元素在河流表层沉积环境中的分布及迁移富集等地球化学行为与特征。结果表明Zn元素在研究河段有轻度污染；相关分析表明重金属元素含量与沉积物粒度之间无显著相关性，重金属元素主要是在固-液平衡体系中、通过多相化学反应形成沉淀。污染源分析表明，造纸污水的排放是造成研究区域中上游河段有机质含量较高的主要原因，大分子有机物质的存在不仅改变了此段河流沉积物粒度的变化，且有机质对重金属元素的富集有一定减缓作用。
- 河流沉积物 /
- 环境地球化学 /
- 重金属 /
- 有机质 /
- 粒度
Abstract: Element analysis combining with TOC and particle size test, cluster analysis and correlation analysis were applied to the study of surface sediments samples , which were collected from the Midreach of Wanchuan River near the Shuangdianzi Town of Lanzhou City , in order to reveal the geochemistry characteristics of heavy metals, such as distribution, removal and enrichment ,in surface depositional environment. According to this result, only element Zn was in lowgrade infectant. Correlation analysis indicated that there were no relation between heavy metal and particle size. Heavy metals transfered into sediments mainly from solidliquid system by multiphase chemical reaction. As a result of the input of paper making wastewater the contents of TOC in midupside of sampling river were higher. And due to the big molecule of organic matter, particle size in midupside of sampling river became bigger. TOC could weaken the enrichment of heavy metals.
- river sediments /
- environmental geochemistry /
- heavy metals /
- TOC /
- particle size

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文章访问数: 3271
HTML全文浏览量: 60
PDF下载量: 744
被引次数: 0

兰州市宛川河中段表层沉积物中重金属元素迁移富集特征

刘艳

兰州大学资源环境学院环境科学研究所兰州 730000

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2008-10-10

关键词:

河流沉积物 /

环境地球化学 /

摘要: 通过对兰州市宛川河中段双店子河段表层沉积物元素分析，结合有机质含量和粒度测试，运用聚类分析和相关分析的方法，研究了重金属元素在河流表层沉积环境中的分布及迁移富集等地球化学行为与特征。结果表明Zn元素在研究河段有轻度污染；相关分析表明重金属元素含量与沉积物粒度之间无显著相关性，重金属元素主要是在固-液平衡体系中、通过多相化学反应形成沉淀。污染源分析表明，造纸污水的排放是造成研究区域中上游河段有机质含量较高的主要原因，大分子有机物质的存在不仅改变了此段河流沉积物粒度的变化，且有机质对重金属元素的富集有一定减缓作用。

English Abstract

刘艳. 兰州市宛川河中段表层沉积物中重金属元素迁移富集特征[J]. 沉积学报, 2008, 26(5): 844-849.

引用本文:

刘艳. 兰州市宛川河中段表层沉积物中重金属元素迁移富集特征[J]. 沉积学报, 2008, 26(5): 844-849.

LIU Yan. Migration and Enrichment Characteristics of Heavy Metals in Surface  Sediments of the Midreach of Wanchuan River in Lanzhou City[J]. Acta Sedimentologica Sinica, 2008, 26(5): 844-849.

Citation:

LIU Yan. Migration and Enrichment Characteristics of Heavy Metals in Surface  Sediments of the Midreach of Wanchuan River in Lanzhou City[J]. Acta Sedimentologica Sinica, 2008, 26(5): 844-849.

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