关键词: 煤质吸附剂, 石油污染土壤, 吸附

Abstract: Taking the petroleum-contaminated soil in Liaohe Oilfield as a case, the process of treating the contaminated soil with coal adsorption and lignite were investigated. The optimum adsorption conditions were obtained as the granularity of coal adsorption of less than 100 μm, quality rate of the lignite and the petroleum -contaminated soil of 1∶5, the temperature of reaction at 60 ℃，the stirring intensity of 600 r/min for 60 min. Under this condition, the removal rate of petroleum from the soil was over 65% and 70%. The result indicated that it was feasible to some extent to treat the petroleum -contaminated soil with coal adsorption.

Key words: Coal adsorption, Petroleum -contaminated soil, Adsorption