【摘要】 在添加高效降解菌剂的基础上,研究了营养物质的种类、添加量以及不同表面活性剂对石油污染土壤修复效果的影响。结果表明,营养物质种类对修复过程的影响显著,添加N、P含量较高的硝基磷酸铵以及自行配制的NH4NO3:NH4H2PO4=5:1混合肥料的处理石油降解率比对照分别提高15.1%以及17.2%,当土壤中C:N的比例控制在100:7.05~100:9.4之间时,修复效果较好,且肥料的添加宜采用少量多次的原则;添加表面活性剂的处理中,鼠李糖脂的处理效果最好,石油降解率比对照提高8%,优于其他化学表面活性剂处理。更多还原

【Abstract】 We addressed the impact of nutrient type and addition amount,and different surfactanton bioremediation effect of petroleum contaminated soil based on the addition of efficientoil-degradation agent. Results show that nutrient type significantly affects the remediation process. Degradation rates of oil processed through addition of nitro ammonium phosphate and the mixed nitrogen-richfertilizer( NH4NO3:NH4H2PO4= 5:1) are respectively 15. 1% and 17. 2% higher than that of the control. Bioremediation effect is better when the ratio of carbon and nitrogen is between 100:7. 05 and 100:9. 4,and the addition of fertilizer should be multiple-low-dose. The processing effect of rhamnolipid is better than that of other chemical surfactants and its oil-degradation rate is 8% higher than that of the control, superior to other chemical surfactants.更多还原