高级氧化处理有机磷农药废水研究进展

Degradation of Organophosphorus Pesticides Wastewater by Advanced Oxidation Processes:A Review

有机磷农药种类繁多、结构复杂,产生的废水难降解,其毒性高、成分复杂,又同时具有高浓度、高盐度、可生化性低等特点.为了解决有机磷农药废水难降解的难题,必须对废水进行一定程度的预处理.高级氧化方法通过光催化、电化学、芬顿(Fenton)试剂等方法产生羟基自由基来氧化有机物,是有机磷农药废水的预处理方法中一类很有前景的方法.该文介绍和分析了几种常用的高级氧化处理方法在有机磷农药废水处理方面的研究进展.

Organic phosphorous pesticide wastewater is one of the most recalcitrant industrial wastewater, which is highly toxic, have very complex compositions, and it constantly has characteristic of high concentration, high salinity, low biodegradability. In order to solve the problem of refractory problem of organophosphorus pesticide wastewater, wastewater must be pretreated to a certain extent. The advanced oxidation method（AOPs） is a promising method in the pretreatment of organophosphorus pesticide wastewater. It based on the all kinds of chemical generation of strong oxidants such as hydroxyl radicals make organophosphorus pesticide oxidize. All sorts of AOPs of organic phosphorus pesticide wastewater treatment were introduced and analyzed, including Fenton- based processes, ozonation-based processes, electrochemical advanced oxidation processes, catalytic wet oxidation, Supercritical water oxidation, photocatalysis, and comparison of different AOPs, and the research process is reviewed.