Impact of chemical oxidation on Brazilian soils

Journal of the Brazilian Chemical Society

Empresa Brasileira de Pesquisa Agropecuária, Rio de Janeiro, Brazil¹  Marques, Mônica R. da C.¹  Silva, Leandro A. da¹  Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil¹  Pérez, Daniel V.¹  Teixeira, Silvio C. G.¹ 

关键词: Fenton;    clay minerals;    Brazilian soils;   

DOI  :  10.1590/S0103-50532012000200026

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

In this work, the impacts on the mineralogical composition and on the physico-chemical properties of two representative categories of Brazilian soils - a vertisol (V) and a kandiudult (P) - after treatment with Fenton reagent were studied. The clay minerals presented in the V (rich in 2:1 expansive clay) have been degraded with this reagent application. In the other, P, rich in kaolinite, there was no significant change in its clay mineralogy after this treatment. Furthermore, the cation exchange capacity (CEC) of V was dramatically diminished and consequently can cause the soil infertility by the reduction of water and nutrients retention.

【 授权许可】

Unknown