Diesel‐contaminated soil was treated with Fenton's oxidant, from hydrogen peroxide. Soil samples were collected during the earthmoving of RNEST Oil Refinery (Petrobras). A factorial design 3³ evidenced that the concentration of iron ions [Fe²⁺] was the variable with the most statistically significant effect in all experiments. The oxidation efficiency was found to be 57 % of total organic carbon (TOC) and 78 % of polycyclic aromatic hydrocarbon (PAH) removal. Moreover, the sum of low‐molecular‐weight PAHs on treated soil and the sum of high‐molecular‐weight PAHs was determined. Soil remediation in a pilot‐scale reactor led to a reduction of nearly 80 % in total PAHs. Toxicity assessment with Californian red earthworms as bioindicator evidenced the mineralization of PAHs.

中文翻译：

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中试规模对柴油污染土壤中多环芳烃的高级氧化

用芬顿的过氧化氢氧化剂处理被柴油污染的土壤。在RNEST炼油厂（Petrobras）的土方搬运过程中收集了土壤样品。析因设计3 ³证明，在所有实验中，铁离子[Fe ²⁺ ]的浓度是变量，在统计学上具有最显着的影响。发现氧化效率为总有机碳（TOC）的57％和多环芳烃（PAH）去除的78％。此外，测定了处理过的土壤上低分子量PAHs的总和。中试规模的反应堆中的土壤修复使总PAHs减少了近80％。以加利福尼亚红色earth作为生物指示剂的毒性评估证明了PAHs的矿化作用。