Foams can be used to remediate aquifer pollution due to industrial leaks. However, when in contact with oily pollutants, foams may collapse and thus have a very limited life-time. A suitable formulation of biodegradable foam that resists oil contact is therefore needed. Hence, the ability of xanthan polymer and silica colloidal particles to stabilise foam against oil was investigated. Their performance in terms of stabilisation was evaluated via foam generation experiments in columns of porous medium, conducted with and without oil. The results show that the addition of xanthan polymer led to an increase in the viscosity of the solution, which thwarted the formation of foam. It did not improve the resistance of foam to oil, but increased altogether the resistance factor up to more than twice the original value. Concerning silica particles, it was demonstrated that they both noticeably increased resistance factor and moderately stabilised foam against oil by 20% at optimum concentration. As such, this study presents a new way to reinforce foam against oil for soil remediation issues.

泡沫可用于补救由于工业泄漏引起的含水层污染。但是，当与含油污染物接触时，泡沫可能会塌陷，因此使用寿命非常有限。因此需要抗油接触的生物可降解泡沫的合适配方。因此，研究了黄原胶聚合物和二氧化硅胶体颗粒稳定泡沫对油的能力。通过在有或没有油的情况下在多孔介质柱中进行泡沫生成实验评估了它们在稳定方面的性能。结果表明，黄原胶聚合物的添加导致溶液粘度的增加，这阻止了泡沫的形成。它并没有提高泡沫对油的抵抗力，但是将抵抗系数提高到了原来值的两倍以上。关于二氧化硅颗粒 结果表明，在最佳浓度下，它们均显着提高了抵抗系数，并且使泡沫的耐油性适度稳定了20％。因此，本研究提出了一种新的方法来针对土壤修复问题增强泡沫对油的抵抗力。