高级氧化技术处理废水的研究进展

The Research Progress of Advanced Oxidation Technology For Wastewater Treatment

高级催化氧化技术已经成为治理生物难降解有机有毒污染物的重要手段,在印染、化工、农药、造纸、电镀和印制板、制药、医院、矿山等领域以及垃圾渗滤液等废水的处理上已经获得应用,具有很好的应用前景。根据产生自由基的方式和反应条件的不同,可将高级氧化技术分为光化学氧化法、催化臭氧氧化法、电化学氧化法、芬顿(Fenton)氧化法、催化湿式氧化法、超声氧化法等。高级氧化技术具有诸多优点,但其中一些技术方法仍处于研究实验阶段。因此,需要研究一种更高效、完善的技术,以实现大规模工业化应用。

Advanced catalytic oxidation technology has become an important means of treating biological degradation of toxic organic pollutants, which has been widely used in the printing and dyeing, chemical,pesticide, papermaking, electroplating and printed circuit boards, hospitals, pharmaceutical, mining, etc. According to the free radical production mode and different reaction conditions, advanced oxidation technology can be divided into photochemical oxidation, catalytic ozone oxidation, electrochemical oxidation, Fenton oxidation,catalytic wet air oxidation, ultrasonic oxidation method and so on. Advanced oxidation technology has many advantages,but some technical methods remain in the stage of experiment.So a more efficient and perfect technology should be studied to realize large-scale industrial application.