The use of pesticides and their release into the natural environment constitutes a direct threat for the environment and the living beings especially the human health. Consequently, the development of technics to detoxify the pesticide residues to reduce at least areas and contaminated matrix is needed. In the present work, a comparative study was performed on the chemical oxidation of an organophosphorus compound, the dimethoate (DIM), with sulfate radicals and hydroxyl radicals. Both oxidants are generated in situ, the sulfate radicals were produced by heat-activation of persulfate (PS) and hydroxyl radicals were generated by water electrooxidation using a boron doped diamond anode (BDD). For both cases, the target molecule has disappeared but the selective reaction of sulfate radicals with organics led to the production of intermediates which are less biodegradable than DIM since the ratio between the biological oxygen demand (BOD₅) and the chemical oxygen demand (COD) has been divided by 2 within the first hour of the process. Whereas the BOD₅/COD ratio during the electrochemical oxidation of DIM via hydroxyl radicals showed that it was possible to render the solution biodegradable without reaching a complete mineralization. However, it has been shown that the presence of chlorides in the solution must be avoided because of the formation of undesired organochlorides during the process.

农药的使用及其向自然环境中的释放对环境和生物特别是人类健康构成直接威胁。因此，需要开发对农药残留物进行解毒以至少减少面积和受污染的基质的技术。在目前的工作中，对有机磷化合物乐果（DIM）与硫酸根和羟基的化学氧化进行了比较研究。两种氧化剂都是原位产生的，硫酸根是通过过硫酸盐（PS）的热活化产生的，而羟基根是通过使用硼掺杂金刚石阳极（BDD）的水电氧化产生的。对于这两种情况，₅），并且在该过程的第一个小时内化学需氧量（COD）已除以2。而通过羟基自由基对DIM进行电化学氧化时的BOD ₅ / COD比表明，有可能使溶液可生物降解而没有达到完全的矿化作用。但是，已经表明，必须避免溶液中氯化物的存在，因为在该过程中会形成不希望的有机氯化物。