Scholarlink

<p>To enhance phenanthrene degradation in soil, the effects of four surfactants on the thermal activation of sodium persulfate (SPS) were investigated. Sodium dodecyl diphenyl ether disulfonate (C<sub>12</sub>-MADS) was found to stabilize SPS by reducing the generation of sulfate radicals from its thermal decomposition. Optimal conditions for the surfactant-assisted persulfate system were determined to be 5&#xa0;g/L of C<sub>12</sub>-MADS at a temperature of 60°C, achieving an 89.80% removal efficiency of phenanthrene in soil. The presence of OH<sup>−</sup> increased the system pH and decreased the removal efficiency. These results demonstrate that C<sub>12</sub>-MADS significantly enhanced the oxidation of phenanthrene and improves SPS utilization efficiency, contributing to the development of an effective surfactant-assisted persulfate system for soil decontamination.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Surfactant Enhancement in Degradation of Phenanthrene Contaminated Soil by Sodium Persulfate

  • 期刊论文

  • 发表日期：

    2025年2月20日

查看全文
  • Zaoquan Huang,
  • Xiaoyuan Li,
  • Siying Hou,
  • Yanjie Zhao,
  • Haijian Lu,
  • Jun Wang,
  • Yirong Deng

摘要

To enhance phenanthrene degradation in soil, the effects of four surfactants on the thermal activation of sodium persulfate (SPS) were investigated. Sodium dodecyl diphenyl ether disulfonate (C12-MADS) was found to stabilize SPS by reducing the generation of sulfate radicals from its thermal decomposition. Optimal conditions for the surfactant-assisted persulfate system were determined to be 5 g/L of C12-MADS at a temperature of 60°C, achieving an 89.80% removal efficiency of phenanthrene in soil. The presence of OH− increased the system pH and decreased the removal efficiency. These results demonstrate that C12-MADS significantly enhanced the oxidation of phenanthrene and improves SPS utilization efficiency, contributing to the development of an effective surfactant-assisted persulfate system for soil decontamination.