Effects of DOM on the Migration of Cr (VI) in Soils

Chuan Fu; Jian Feng Dong; Fang Fang; Wei Ping; Jun Jie Lin

doi:10.4028/www.scientific.net/AMR.864-867.278

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867Effects of DOM on the Migration of Cr (VI) in...

Effects of DOM on the Migration of Cr (VI) in Soils

Abstract:

Dissolved organic matter is an important and active component in both terrestrial and aquatic ecosystem. It has become a hotspot in environment science, with active functional groups such as carboxyl, hydroxyl, amino that can influence adsorption and migration of heavy metal contaminants in soil system. Through soil column leaching experiment the article demonstrates that Cr (VI) is dominated by physical adsorption in soils. By using DOM eluent and distilled water to leach at different temperatures in soil, this article shows that release ability of Cr increases with temperature rising, while its deposition capacity increases with temperature decreasing in Water Level Fluctuating Zone. Combined with Gibbs theory, Cr (VI) may take complexation reaction with DOM in soil medium. Thus, new substances appear under the proof of XRD graph.

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Periodical:

Advanced Materials Research (Volumes 864-867)

Pages:

278-282

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.864-867.278

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Online since:

December 2013

Authors:

Chuan Fu*, Jian Feng Dong, Fang Fang, Wei Ping, Jun Jie Lin

Keywords:

Adsorption, Cr, Dissolved Organic Matter (DOM), Temperature

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* - Corresponding Author

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