土壤中石油污染物的脱附研究

Stripping Process of Petroleum Pollutants in Soil

使用有机溶剂萃取法(OSE),对高浓度石油污染土壤进行修复。经过精馏操作,以有效回收原油,建立脱附等温曲线,得出了石油污染物在土壤-有机溶剂两相间的迁移规律。实验结果表明,液固比在3∶1到5∶1的情况下时,能够达到较好的脱附效果。

Organic solvent extraction（OSE） was used to remediate high concentration of petroleum contaminated soil. First how to effectively recycle oil by distillation operation was discussed, and then stripping isothermal curve was established, finally the migration pattern of oil pollutants between soil and organic solvent was studied. The experimental results show that, when liquid-solid ratio is in the range of 3：1 to 5：1, good stripping effect can be achieved.