Title of article :
Leaching kinetics of water soluble organic carbon (WSOC) from upland soil
Author/Authors :
J. Cao، نويسنده , , S. Tao، نويسنده , , B. G. Li، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
Pages :
10
From page :
1771
To page :
1780
Abstract :
The kinetics of the leaching process of Water Soluble Organic Carbon (WSOC) from an upland soil were studied in a column leaching experiment. The pattern of the leaching curve indicated multiphasic release kinetics. A conceptual model was proposed to divide capillary and gravitational pores. The translocation of organic carbon in soil during leaching occurs in four sequential steps. 1) degradation of insoluble organic carbon to fonn WSOC, 2) desorption into capillary pore water: 3) diffusion towards gravitation pore water; and 4) leaching by convection flow. The overall kinetics of the leaching process can be depicted using an equation with three additive terms for degradation, desorption/diffusion. and convection, respectively.
Keywords :
Leaching , water soluble organic carbon (WSOC) , soil , degradation kinetics
Journal title :
Chemosphere
Serial Year :
1999
Journal title :
Chemosphere
Record number :
724400
Link To Document :
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