Journal of East China Normal University(Natural Sc ›› 2008, Vol. 2008 ›› Issue (6): 51-55,1.

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Adsorption properties of humic acid and pyrene on paddy soils and its extracts(Chinese)

CHEN Cheng1,2,CHEN Hua-lin2,HUANG Min-sheng1   

  1. 1.Department of Environment Science, East China Normal University, Shanghai 200062, China; 2. School of Life and Environmental Science, Wenzhou University, Wenzhou Zhejiang 325027, China
  • Received:2008-03-05 Revised:2008-05-28 Online:2008-11-25 Published:2008-11-25
  • Contact: HUANG Min-sheng

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Abstract: Adsorption and persistence capacity of humic acid and pyrene on two kind of paddy soils had no obvious difference. The order of adsorption and persistence capacity of humic acid was that soil > black carbon > cauterant soil. It was similar between the soil and its black carbons on the adsorption capacity of pyrene. The Freundlich equation and partition coefficients (Kf) could reflect it better. Hydrophobic or hydrophilic properties of paddy soil and its black carbons were the main factors on the adsorption proerties of humic acid and pyrene.

Key words: black carbon, humic acid, pyrene, adsorption property, paddy soils, black carbon, humic acid, pyrene, adsorption property

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