Sorption of pyrene on two paddy soils and their particle-size fractions

0
- By: ,

Courtesy of IOS Press

In the present study, the sorption of pyrene on two kinds of bulk paddy soils, Gleyic Stagnic Anthrosols, and Ferric accumulic Stagnic Anthrosols as well as their particle-size fractions was investigated. The sorption isotherms fitted well with Freundlich equation. For both soils, the clay fraction (<2µm) and coarse sand fraction (2000-250µm) had higher sorption capacity than fine sand fraction (250-20µm) and silt fraction (20-2µm). The logKoc values obtained of each soil and its particle-size fractions were similar, proving that SOM content was a key factor affecting pyrene sorption. The Kmd values showed a significant correlation with contents of dithionite-extractable Fe in both paddy soils and a good relationship with CEC in Gleyic Stagnic Anthrosols, indicating possible effects of surface properties of particle-size fractions on the sorption of pyrene.

Customer comments

No comments were found for Sorption of pyrene on two paddy soils and their particle-size fractions. Be the first to comment!