Stability of foam, enhanced by nano zero-valent iron (nZVI) and its optimized constituents, may have significant potential for effective treatment of soil contaminated with diesel oil—a major environmental problem. The optimum diesel removal efficiency from distinct types of soil accomplished by the unique application of such foams as well as the optimum conditions of the foaming constituents have not been reported in literature so far. Hence, in this work, the removal of diesel contaminant from different soil types (desert, coastal, clay soil) is optimized, and the optimized results are reported for the first time, using response surface methodology (RSM), for alkylpolyglucoside phosphate (APG-Ph) foam, stabilized by nZVI. The effect of concentrations of APG-Ph (0.02, 0.04, 0.06, 0.08, and 0.1 volume %) and nZVI (2, 3, and 3.5 mg/l) on diesel removal efficacy from soil is studied using Box-Behnken design (BBD) of response surface methodology (RSM). Maximum diesel removal efficiency obtained at a concentration of 0.1 volume % APG-Ph foam with 3.5 mg/l nZVI for desert, coastal, and clay soil is 94.6, 95.3, and 57.5%, respectively. The optimum concentrations of APG-Ph and nZVI are found to be 0.98 volume % and 0.8 mg/l, respectively. Validation of this optimal condition experimentally results in highest removal efficiency of 98.3, 97.2, and 75.9% for desert, coastal, and clay soil respectively. This is in good agreement with the predicted values by RSM (98.67, 97.57, and 76.85%). The maximum diesel removal efficiency predicted at optimal concentration of APG-Ph and nZVI is significantly larger than the results reported in literature in last three years.

纳米零价铁 (nZVI) 及其优化成分增强了泡沫的稳定性，在有效处理柴油污染的土壤（这是一个主要的环境问题）方面具有巨大的潜力。迄今为止，文献中尚未报道通过这种泡沫的独特应用以及泡沫成分的最佳条件从不同类型的土壤中获得的最佳柴油去除效率。因此，在这项工作中，对不同土壤类型（沙漠、沿海、粘土）中柴油污染物的去除进行了优化，并首次使用响应面法 (RSM) 报告了烷基聚葡萄糖苷磷酸酯 (APG) 的优化结果。 -Ph) 泡沫，由 nZVI 稳定。APG-Ph（0.02、0.04、0.06、0.08 和 0.1 体积%）和 nZVI（2、3 和 3）浓度的影响。5 mg/l) 对从土壤中去除柴油的功效使用响应面方法 (RSM) 的 Box-Behnken 设计 (BBD) 进行研究。在浓度为 0.1 体积 % APG-Ph 泡沫和 3.5 mg/l nZVI 的沙漠、沿海和粘土土壤中获得的最大柴油去除效率分别为 94.6、95.3 和 57.5%。发现 APG-Ph 和 nZVI 的最佳浓度分别为 0.98 体积 % 和 0.8 毫克/升。对该最佳条件的实验验证导致沙漠、沿海和粘土土壤的最高去除效率分别为 98.3、97.2 和 75.9%。这与 RSM 的预测值非常吻合（98.67、97.57 和 76.85%）。在最佳 APG-Ph 和 nZVI 浓度下预测的最大柴油去除效率明显大于过去三年文献报道的结果。