Migration and Enrichment Characteristics of Heavy Metals in Surface Sediments of the Midreach of Wanchuan River in Lanzhou City
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2008-10-10
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Key words:
- river sediments /
- environmental geochemistry /
- heavy metals /
- TOC /
- particle size
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 Midreach 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 lowgrade infectant. Correlation analysis indicated that there were no relation between heavy metal and particle size. Heavy metals transfered into sediments mainly from solidliquid system by multiphase chemical reaction. As a result of the input of paper making wastewater the contents of TOC in midupside of sampling river were higher. And due to the big molecule of organic matter, particle size in midupside of sampling river became bigger. TOC could weaken the enrichment of heavy metals.
| Citation: | LIU Yan. Migration and Enrichment Characteristics of Heavy Metals in Surface Sediments of the Midreach of Wanchuan River in Lanzhou City[J]. Acta Sedimentologica Sinica, 2008, 26(5): 844-849.
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