This study aimed to develop a method for the management of petroleum pollutants released into the environment using modified bentonite and to evaluate the use of petroleum-impregnated modified bentonite, as an eco-friendly and resistant mulch to stabilize mobile sands exposed to wind erosion. Bentonite was modified using hexa-decyl-tri-methyl-ammonium bromide to increase its capacity for petroleum adsorption. The resistivity to breakdown of the produced mulch was determined against wind, runoff, and by drainage water caused by simulated rainfall. Results showed that the basal spacing of the modified bentonite increased 162% compared to unmodified bentonite and it was able to adsorb petroleum, 5 times its base weight. The produced mulch was resistant against wind flows up to 16.7 m s⁻¹ with no soil loss during 5 min, while the untreated sandy soil started to move at a threshold speed of 10.3 m s⁻¹ (with a soil loss rate of 53 g m⁻² s⁻¹) and the tray of soil was fully eroded after 135 s. Analysis of the drainage waters which passed through the mulch showed that mulch 2 (ratio 5:1, sandy soil: modified clay + unmodified clay (1:1) mixed by petroleum) retained more polycyclic aromatic hydrocarbons compounds, compared to mulches 1 (ratio of 5:1 sandy soil: unmodified bentonite mixed with petroleum) and 3 (ratio 5:1:0.5, sandy soil: unmodified clay: modified clay mixed by petroleum). Analysis of the runoff water samples also showed that PAHs retention in mulch 2 is significantly higher than the amounts retained by mulches 1 and 3.

本研究旨在开发一种使用改性膨润土管理释放到环境中的石油污染物的方法，并评估使用石油浸渍改性膨润土作为一种环保且抗风的覆盖物来稳定暴露于风蚀的流动砂土。膨润土使用十六烷基三甲基溴化铵进行改性，以增加其对石油的吸附能力。生产的覆盖物分解的电阻率是根据风、径流和模拟降雨引起的排水确定的。结果表明，改性膨润土的基间距比未改性膨润土增加了162%，能够吸附石油，是其基重的5倍。生产的覆盖物可抵抗高达 16.7 m s ^{-1 的}风流在 5 分钟内没有土壤流失，而未经处理的沙土开始以 10.3 m s ^-1的阈值速度移动（土壤流失率为 53 g m ^-2  s ^-1），并且在 135 年后托盘土壤被完全侵蚀s。通过覆盖物的排水分析表明，覆盖物 2（比例 5:1，沙质土壤：改性粘土 + 石油混合的未改性粘土（1:1））与覆盖物 1（比率5：1砂土：未改性膨润土与石油混合）和3（比例5：1：0.5，砂土：未改性粘土：改性粘土与石油混合）。对径流水样本的分析还表明，覆盖物 2 中 PAH 的保留量显着高于覆盖物 1 和 3 中的保留量。