Study on Heavy Metal Adsorption in Coastal Sediment of the Yellow River Estuary

Abstract:

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We took the surface sediments of the Yellow River as the objects to study the adsorption characteristics of Cu and Pb in coastal sediments. The results indicated that: the smaller the granularity is, the bigger the saturated adsorption capacity is; The adsorption equilibrium time of Cu2+, Pb2+ is different, but all can achieve adsorption equilibrium in 1.5h; The adsorption capacity increases gradually along with pH, which increases rapidly for Cu2+, but increaseing slowly for Pb2+. The adsorption capacity of Cu2+ assumes a linear relation with initial concentration of absorbent basically; which increases rapidly under lower initial concentration of absorbent for Pb2+, but then becomes lower. The adsorption capacity of Cu2+, Pb2+ increases along with the equilibrium concentration, which increases rapidly for Cu2+, but increases rapidly for Pb2+ when the equilibrium concentration is relatively lower, then tends to slow down along with the concentration.

Info:

Periodical:

Advanced Materials Research (Volumes 201-203)

Edited by:

Daoguo Yang, Tianlong Gu, Huaiying Zhou, Jianmin Zeng and Zhengyi Jiang

Pages:

2540-2543

DOI:

10.4028/www.scientific.net/AMR.201-203.2540

Citation:

Q. Q. Wu and J. G. Ren, "Study on Heavy Metal Adsorption in Coastal Sediment of the Yellow River Estuary", Advanced Materials Research, Vols. 201-203, pp. 2540-2543, 2011

Online since:

February 2011

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$35.00

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