高级氧化技术在难降解工业废水中的研究进展

RESEARCH PROGRESS OF ADVANCED OXIDATION PROCESSES IN THE TREATMENT OF REFRACTORY INDUSTRIAL WASTEWATER

高级氧化技术在处理难降解工业废水方面具有独特的优势,如反应速度快、有机物降解彻底、无二次污染、水质适用范围广等,可以大大提高难降解工业废水的可生化性,将难降解的有机物分解,因此近年来受到业界的广泛关注。详细归纳、总结了近年来国内外采用Fenton法、电催化氧化法、臭氧氧化法、湿式氧化法、超临界水氧化法等高级氧化技术处理高浓度难降解工业废水的研究进展,并从反应机理、处理成本、处理效果、操作难易程度、工程应用可行性等方面对多种高级氧化技术进行比较,以期为高级氧化技术在难降解工业废水处理中的应用提供参考。

Advanced oxidation processes（AOP） has attracted widely attention in recent years for its unique advantages in treating refractory industrial wastewater, such as rapid reaction, complete degradation oforganic matters without secondary pollution andbeing suitable for a wide range of water quality,which improves the biodegradability of refractoryindustrial wastewater greatly andbreaksdown the refractory organics.Here it is inducted and summarized that the recent research progress of AOPs at home and abroadused in treating refractory industrial wastewater of high concentration,including Fenton, electro-catalytic oxidation, ozone oxidation, wet air oxidation, supercritical water oxidation, etc. Besides, for providing a reference for the application of AOPs in treatment projects of refractory industrial wastewater, comparison among these AOPs was made on the aspects of reaction mechanism, treatment cost, treatmentefficiency, difficulty degree of operation, engineering application feasibility, etc.