活化过硫酸钠法降解有机污染土壤的条件研究

Analysis on Conditions of Degrading Organic Contaminated Soil by Activated Sodium Persulfate Method

阐述了碱活化、亚铁活化和热活化三种活化过硫酸钠法在不同有机污染土壤中的降解条件。为类似污染土壤的小试提供了实验方法的指导,并在一定程度上为相似污染土壤修复工程提供活化方式、药剂量和反应条件的参考。展望了一种适用不同土壤质地、能充分混合药剂与土壤从而提高降解效率的搅拌装置的研发前景,提出了化学氧化-热脱附耦合技术降解高浓度有机污染场地的研究意义。

The degradation conditions of sodium persulfate activated by alkali,ferrous and heat in different organic contaminated soils are described.The study can provide the guidance to the experimental methods for the small-scale test of similar contaminated soil,and offers reference for activation methods,doses and reaction conditions for similar contaminated soil remediation projects.It analyzes the research and development prospects of the agitating device which is suitable for different soil textures,fully mixing agents and soil to improve degradation efficiency.The significance of hybrid chemical oxidation-thermal desorption for high-concentration organic contaminated sites is pointed.