应用生物吸附剂修复石油污染土壤(英文)

采用生物碳吸附剂(植物性碳吸附材料表面固定本土石油氧化微生物)对污染土壤中的不同石油组分降解性能进行了研究。结果表明,10~14天后石油生物降解率达到40%~50%,30~40天后石油污染物降解率超过90%,土壤中石油烃含量下降至2%~3%,剩余的石油污染物中,饱和分与芳香分含量明显降低,而胶质与沥青质含量显著增加。在乌克兰与俄罗斯油田采油与炼油企业进行了生物碳吸附剂的示范试验,结果表明,该吸附剂对土壤中的石油污染物具有较高的降解率,结果令人满意。

BIOREMEDIATION OF OIL-POLLUTED SOIL WITH SORPTIVE BIO-COMPLEXES

The possibility of use of bio-activated carboneous sorbent (BACS, carbon sorbent based on vegetal resources bio-activated by native complex of oil-oxidizing microorganisms) for the degradation of various petroleum products in contaminated soil was investigated, petroleum bio-degradation degree reached to 40% ～50% during first 10 - 14 days, and more than 90% after the period above 30-40 days, the residual hydrocarbon content in studied soil-ground decreased to 2% ～ 3% , obvious decrease of the content of saturates and aromatics components but notable increase of tar components and asphaltenes in the residual oil. In both Ukraine and Russia, the testing of BACS on contaminated natural oil-fields at oil-recovery and oil-refinery enterprises was conducted. As a result, the high efficiency of BACS for eliminating petroleum contamination of soil was satisfied.