电阻加热协同化学氧化修复有机污染土壤

Remediation of organic contaminated soil by electrical resistance heating coupled chemical oxidation

近年来,由于我国涉污染企业搬迁,造成了严重的有机污染土壤环境污染问题,多技术协同治理是修复有机污染地块的必然选择.电阻加热(electrical resistance heating,ERH)和化学氧化均是主流的污染土壤修复技术,且互补性强,二者耦合技术具有较好的工程化应用前景.本研究分析了ERH的修复原理及其适用性,讨论了ERH协同化学氧化的研究现状,创新性地提出了ERH协同电动输送氧化剂的设想,并对后期发展进行了总结和展望,以期为我国有机污染土壤高效、快速、绿色的原位修复技术的应用提供借鉴.

In recent years,due to the relocation of pollution-related enterprises in China has caused serious soil environmental pollution problems,and multi-technology synergistic treatment is an inevitable choice for remediation of organic contaminated soil.Both electrical resistance heating(ERH) and chemical oxidation are mainstream remediation technologies for contaminated soils and complementary,and the coupling technology of both has good prospects for engineering applications.The remediation principle of ERH and its applicability was analyzed,the current research progress of ERH synergistic chemical oxidation was discussed,the innovative idea of ERH synergiatic electric delivery of oxidant was proposed,and the later development was summarized and prospected.It is expected that the results will provide reference for the application of efficient,rapid and green in-situ remediation technologies in organics-contaminated soil.