铁活化过硫酸盐修复石油烃污染土壤的研究进展

分析了Fe0、Fe^2+和Fe^3+活化过硫酸盐氧化石油烃的机理,介绍了土壤中石油烃污染物降解的影响因素以及总结了铁活化过硫酸盐修复石油烃污染土壤技术的不足。指出应以铁活化过硫酸盐原位修复作为土壤中高浓度有机污染物的前处置方法,再结合微生物或植物修复等技术,以减少对土壤理化性质的影响;另外,检测仪器的发展有利于土壤修复技术的应用。

Review on remediation of petroleum hydrocarbon contaminated soil with iron activated persulfate

The mechanisms of oxidation of petroleum hydrocarbon with persulfate which activated by Fe⁰,Fe²⁺ and Fe³⁺are analyzed respectively. The factors affecting the degradation of petroleum hydrocarbon pollutants in soil are introduced and the disadvantages of technologies for remediation of petroleum hydrocarbon contaminated soil with iron activated persulfate are summarized. It is pointed that the in situ remediation with iron activated persulfate should be used as a pre-treatment process for high-concentration organic pollutants in soil and combined with microorganism remediation or phytoremediation technologies to decrease the effects on physicochemical properties of soil;besides,the development of detection apparatus is conducive to application of soil remediation technologies.