活化过硫酸盐高级氧化技术因其具有处理效率高、不产生二次污染、反应条件温和及成本可控等优势被广泛应用于土壤修复。为确定过硫酸盐高级氧化技术的适用性,扩大其在土壤修复领域中的运用,通过实验室小试、现场中试及工程项目施工,确定活化剂石灰和氧化剂过硫酸钠的质量百分比为1∶1,注射井的影响半径为2 m。

Activated persulfate advanced oxidation technology is widely used in soil remediation because of its high treatment efficiency,no secondary pollution,mild reaction conditions and controllable cost.In order to determine the applicability of activated persulfate advanced oxidation technology and expand its application in the field of soil remediation,it is determined through laboratory tests,field pilot tests and engineering projects that the mass ratio of lime activator and sodium persulfate oxidant is 1%∶1%.Results show that the influence radius of the injection well reaches 2 m,and the remediation project for petroleum hydrocarbon polluted soil passed the approval.