A study on the adsorption of chromium on laterite from Guizhou Province,China

	A study on the adsorption of chromium on laterite from Guizhou Province,China
	GYIG-IR管理员
	2009
发表期刊	Chinese Journal of Geochemistry》 , , :
卷号	28 期号:2 页码:220-226
摘要	The adsorption behaviors of Cr(VI) on laterite from Guizhou Province were studied in this paper, and the adsorption mechanism was discussed as well. Results showed that different mineral compositions in the laterite would cause differences in the capacity of laterite to absorb Cr(VI). Gibbsite, iron oxide minerals and non-crystalloids are the main contributors to enhancing the capacity of laterite to absorb Cr(VI). The pH of the solution is an important factor affecting the adsorption of Cr(VI) on laterite. Acidic environment (pH=2-5) is favorable to the adsorption of Cr(VI). The amount of adsorbed Cr(VI) decreases with increasing pH of the solution. With increasing initial concentrations of Cr(VI), the amount of adsorbed Cr(VI) increases first, and then decreases. The optimal adsorption concentration of Cr(VI) on laterite is 250 μg/mL. The adsorption of Cr(VI) on laterite is a rapid process, about 80% Cr(VI) will be adsorbed within 2 hours. And the adsorption of Cr(VI) on kaolinite is a slow process.
学科领域	环境地球化学
收录类别	EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/6763
专题	环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
推荐引用方式 GB/T 7714	GYIG-IR管理员. A study on the adsorption of chromium on laterite from Guizhou Province,China[J]. Chinese Journal of Geochemistry》 , , :,2009,28(2):220-226.
APA	GYIG-IR管理员.(2009).A study on the adsorption of chromium on laterite from Guizhou Province,China.Chinese Journal of Geochemistry》 , , :,28(2),220-226.
MLA	GYIG-IR管理员."A study on the adsorption of chromium on laterite from Guizhou Province,China".Chinese Journal of Geochemistry》 , , : 28.2(2009):220-226.

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