Abstract

Considering the diffusion, adsorption or desorption, and microbial degradation of petroleum hydrocarbons (PHs) in the soil–water system, the numerical model describing the migration and transportation of PHs is estabilished and it is simulated by HYDRUS-1D model. The degradation effect of time and depth variation of PHs is gained by numerical simulation. The results show that the degradation ability of indigenous microbial of PHs is poor. The HYDRUS-1D software is feasible in simulating and predicting the migration and transformation of PHs in soils.

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