苯系污染物是一种以苯、甲苯、乙苯、二甲苯四类为代表性物质，具有持久性或难降解性质，都属于挥发性和半发挥发型有机污染物。利用过硫酸盐稳定性好、氧化性能高、降解有机污染物条件温和、操作简单等特性，重点研究催化剂活化过硫酸盐对土壤中苯系污染物的修复性能和影响因素，针对土壤有机污染物修复材料难以回收的问题，开展生物质材料负载催化剂的试验研究，形成吸附–化学氧化联合修复苯系污染物的技术路线，可以为场地有机污染土壤的修复提供新的研究思路，最终实现有机污染物土壤的规模化、高效性、低成本化修复，并为同类研究提供参考。
Benzene-based pollutants are a representative substance with four categories of benzene, toluene, ethylbenzene, and xylene. They are persistent or difficult to degrade, and they are all volatile and semi-functional organic pollutants. Utilizing the characteristics of good persulfate stability, high oxidation performance, mild conditions for degrading organic pollutants, and simple operation, the focus is on the remediation performance and influencing factors of catalyst-activated persulfate on benzene pollutants in the soil. Repairing the problem of difficult recovery of materials, carrying out experimental research on biomass material-supported catalysts, and forming a technical route of combined adsorption-chemical oxidation to repair benzene pollutants can provide new research ideas for the remediation of organically contaminated soil on the site, and ultimately achieve organic pollution. The large-scale, high-efficiency and low-cost restoration of natural soils can provide reference for similar research.