Dowling K C, Lemley A T
Graduate Field of Environmental Toxicology, Cornell University, Ithaca, NY 14853, USA.
J Environ Sci Health B. 1995 Sep;30(5):585-604. doi: 10.1080/03601239509372955.
Improper treatment and disposal of pesticide-contaminated wastewaters raise concerns for soil and water contamination. Based on the pilot studies described here, chemical treatment via Fenton's reagent (ferrous ion plus hydrogen peroxide) of three organophosphorus insecticides in aqueous solution appears promising. Results show that the Fenton dark reaction degrades methyl parathion, malathion, and methamidophos, and in many cases their breakdown products as well. Addition of cupric ion greatly accelerates insecticide disappearance. To maximize degradation, further studies of the influence of 1) pesticide structure, 2) reagent ratios, and 3) breakdown product competition on reaction rates are necessary.
对受农药污染废水的不当处理和处置引发了对土壤和水污染的担忧。基于此处所述的试点研究，通过芬顿试剂（亚铁离子加过氧化氢）对水溶液中的三种有机磷杀虫剂进行化学处理似乎很有前景。结果表明，芬顿暗反应可降解甲基对硫磷、马拉硫磷和甲胺磷，在许多情况下还能降解它们的分解产物。添加铜离子可大大加速杀虫剂的消失。为了使降解最大化，有必要进一步研究1）农药结构、2）试剂比例和3）分解产物竞争对反应速率的影响。
