Study on migration and change of petroleum pollutants in soil and pollution evaluation with data mining technology

To study the migration and variation rule of petroleum pollutants in soil evaluate condition, field investigation is carried out a refinery Yunnan Province relevant data are collected. Then, sampling leaching experiments on land refinery. Finally, experimental sorted out. The results show that pollution surface most serious. Because adsorb-ability soil, content deep less. diffusion process greatly affected by random factors horizontal diffusion. In vertical direction, depth will reduce speed pollutants. This exploration provides reference for soil.