The Kinetics of the Reaction of Ozone with Phenanthrene in Unsaturated Soils

摘要

The kinetics of the heterogeneous reactions of gaseous ozone with soil water, the soil matrix, and phenanthrene were investigated in a cycling batch reactor. The rate of ozone decomposition in soil water is described as a first-order rate expression with respect to the gaseous ozone concentration. The rate expression for the reaction of gaseous ozone with the soil matrix in moist soil can be de- Scribed as second order overall, first order with respect to both gaseous ozone and soil organic mat- Ter concentrations.