Zhang Lei, Guo Xingjia, Yan Fei, Su Mingming, Li Ying
College of Chemistry and Chemical Engineering, Liaoning University, Shenyang 110036, China.
J Hazard Mater. 2007 Nov 19;149(3):675-9. doi: 10.1016/j.jhazmat.2007.04.039. Epub 2007 Apr 20.
In this work, the degradation of dimethoate under microwave irradiation assisted advanced oxidation processes (MW/oxidants) were studied. The efficiencies of the degradation of dimethoate in dilute aqueous solutions for a variety of oxidants with or without MW irradiation were compared. The results showed that the synergistic effects between MW and K(2)S(2)O(8) had high degradation efficiency for dimethoate. Simultaneously, UV/TiO(2)/K(2)S(2)O(8) photocatalytic oxidation degradation of dimethoate was investigated. The experimental results indicated that the method of microwave degradation of organic pollutants in the presence of oxidant could reduce reaction time and improve product yield. Microwave irradiation was an advisable choice for treating organic wastewaters and has a widely application perspective for non- or low-transparent and fuscous dye wastewaters.
本研究考察了微波辐射辅助高级氧化工艺（MW/氧化剂）对乐果的降解效果。比较了在有无微波辐射条件下，多种氧化剂对稀水溶液中乐果的降解效率。结果表明，微波与过硫酸钾（K₂S₂O₈）之间的协同作用对乐果具有较高的降解效率。同时，研究了UV/TiO₂/K₂S₂O₈光催化氧化降解乐果的情况。实验结果表明，在氧化剂存在下微波降解有机污染物的方法可以缩短反应时间并提高产物产率。微波辐射是处理有机废水的一种可行选择，对于非透明或低透明、深色染料废水具有广泛的应用前景。
