In this study biosurfactant (UH-biosurfactant) was used to flush the PCE contaminated soil. The adsorption and dcsorption isotherms for PCE and biosurfactant with sand and kaolinite clay have been quantified. Transport parameters such as seepage velocity (v), diffusion (D) and retardation factor (R) of the above mentioned surfactant solution was determined in clayey soils (sand (82.5%) with 17.5% kaolinite clay mixture). In this study 0.1 g/L NaCl was used as the electrolyte solution. Convection-Diffusion equation (CDE) was used to model the breakthrough curves of the surfactant. Bromide ion was chosen as the tracer material in order to characterize the flow. The effectiveness of biosurfactant solution in flushing the PCE from the contaminated soil was quantified.
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机译：在这项研究中，使用生物表面活性剂（UH-biosurfactant）冲洗被PCE污染的土壤。定量了PCE和生物表面活性剂在沙子和高岭石粘土中的吸附和脱附等温线。在粘土质土壤（含17.5％高岭石粘土混合物的砂土（82.5％））中测定上述表面活性剂溶液的输运参数，如渗透速度（v），扩散（D）和阻滞因子（R）。在这项研究中，使用0.1 g / L NaCl作为电解质溶液。对流扩散方程（CDE）用于模拟表面活性剂的穿透曲线。选择溴离子作为示踪剂材料以表征流动。量化了生物表面活性剂溶液从受污染土壤中冲洗PCE的有效性。
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