高级氧化技术修复多环芳烃污染土壤研究进展  

Research progress in advanced oxidation technologies for remediation of polycyclic aromatic hydrocarbons contaminated soils

作　　者：任天琳 赵立坤 陈超琪 毛旭辉[1] REN Tianlin;ZHAO Likun;CHEN Chaoqi;MAO Xuhui(School of Resource and Environmental Sciences,Wuhan University)

机构地区：[1]武汉大学资源与环境科学学院

出　　处：《环境工程技术学报》2023年第5期1652-1662,共11页Journal of Environmental Engineering Technology

基　　金：国家重点研发计划项目(2020YFC1807902)。

摘　　要：多环芳烃(PAHs)是由2个或2个以上苯环组成的碳氢化合物,其致癌、致突变、致畸等特性对人类健康和生态环境产生不利的影响。由于PAHs具有低水溶性、高疏水性和难降解性等特点,导致PAHs污染土壤修复具有巨大挑战。高级氧化技术是处理PAHs污染土壤的有效手段。对高级氧化技术在PAHs污染土壤修复领域的研究进展进行了总结,对臭氧氧化、芬顿氧化和过硫酸盐氧化等高级氧化技术的优劣进行了分析;此外,探讨了表面活性剂在提升高级氧化效果方面的作用以及土壤理化环境条件对氧化过程的影响,分析了氧化过程对土壤微环境的潜在影响;最后,指出了高级氧化修复PAHs污染土壤的研究难点和未来方向。Polycyclic aromatic hydrocarbons(PAHs)are hydrocarbon compounds composed of two or more benzene rings.Their carcinogenic,mutagenic and teratogenic properties have adverse effects on human health and ecological environment.Due to the characteristics of low water solubility,high hydrophobicity and difficult degradation of PAHs,the remediation of PAHs-contaminated soil poses significant challenges.Advanced oxidation technologies have emerged as effective approaches for addressing PAHs contamination in soil.The research progress in the field of advanced oxidation technologies for the remediation of PAHs-contaminated soil was summarized,with a focus on the advantages and disadvantages analysis of ozone oxidation,Fenton oxidation,and persulfate oxidation.Furthermore,the role of surfactants in enhancing the effectiveness of advanced oxidation was explored and the influence of soil physicochemical conditions on the oxidation process was discussed.Potential impacts of the oxidation process on the soil microenvironment were also analyzed.Finally,the research difficulties and future directions of remediation of PAHS-contaminated soil by advanced oxidation were pointed out.

关 键 词：多环芳烃(PAHs) 焦化土壤 高级氧化 土壤污染治理 

分 类 号：X53[环境科学与工程—环境工程]