中文摘要：

原位化学氧化（ISCO）是近些年来国内外较为推崇的一种土壤和地下水修复技术。过硫酸盐（PS,S2O82-）具有易运输、较稳定、易溶于水和易传质等性质,能很好地适应ISCO的发展要求。它在光、热、过渡金属离子、强氧化剂和强碱性环境等活化条件下,能产生强氧化性的硫酸根自由基SO4·-,适用于氧化降解各种有机污染物。本文在分析活化过硫酸盐（activated persulfate,APS）氧化机理的基础上,综述了不同方式活化过硫酸盐原位修复有机污染土壤和地下水及APS协同、联用技术的应用,并就值得深入研究的问题和热点趋势进行了展望。

英文摘要：

In-situ chemical oxidation（ ISCO） is an effective technology for the remediation of organic contaminated soils and groundw ater,as it has high contaminants removal rates and offers the possibility of fast treatment. As an in-situ remediation technology,ISCO can be also used for minimizing contaminants dispersion and low ering the overall treatment cost. Persulfate（ PS） is an emerging and promising oxidant for in-situ soil and groundw ater remediations due to its high redox potential（ E0= 2. 01 V）,long-term stability,high-w ater solubility,easy transport and w ide operative pH range. It can be thermally or chemically activated by initiators to form sulfate radical（ SO4 ·-）,a strong oxidant（ E0= 2. 60 V） w hich has been successfully used for environmental applications in the remediation of aqueous and sediment systems. The activation methods includeUV,heat,transition metals ions,alkaline condition and PS combined w ith other oxidants. Therefore,the application of activated persulfate（ APS） oxidation has emerged as a novel ISCO. This paper provides an overview of mechanism and research progress of APS oxidation. It also review s the engineering application of APS oxidation technology such as synergistic and hyphenated action for remediation of organic contaminated soils and groundw ater, and points out the prospects of the research areas meriting further investigation and development trends.