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Anodic Destruction of 4-methyl Pyrimidine Solution Using a Boron-Doped Diamond Anode

机译:硼掺杂金刚石阳极阳极降解4-甲基嘧啶溶液

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Degradation of 4-methyl pyrimidine (4MP), a refractory toxic chemical emitted to the environmentfrom the industrial production of pyrimidine pesticide was studied in aqueous solution. This paperpresents the study of the electrochemical oxidation of 4MP in alkaline media in the presence of sodiumchloride, has been investigated. The process has been followed through the dependence of ChemicalOxygen Demand (COD) and by UV spectrophotometer. The influence of current density, supportingelectrolytes (NaCl, NaOH, and Na2SO4) and temperature on the rate of COD abatement has beenfollowed. The rate of the degradation was found to increase with increasing the current density andtemperature. The best obtained conditions for COD removal on the boron-doped diamond anode (BDD) to degrade 4MP solutions (initial COD0 = 900 mg.L ) include operating at 30 mAcm and 25C. The high efficiency of this technology can be explained in terms of the direct electro-oxidation at. the BDD surface and the oxidation carried out by hydroxyl radicals (OH ) and other electro-generated- - oxidants ( Cl ,ClO ).
机译:在水溶液中研究了工业化生产嘧啶农药的难降解有毒化学物质4-甲基嘧啶(4MP)的降解情况。本文介绍了在氯化钠存在下碱性介质中4MP电化学氧化的研究。通过依赖化学需氧量(COD)和紫外分光光度计来跟踪该过程。跟踪了电流密度,支持电解质(NaCl,NaOH和Na2SO4)和温度对COD减排速率的影响。发现降解速率随着电流密度和温度的增加而增加。在掺硼金刚石阳极(BDD)上去除COD以降解4MP溶液(初始COD0 = 900 mg.L)的最佳条件包括在30 mAcm和25°C下操作。该技术的高效率可以用直接电氧化来解释。 BDD表面和由羟基自由基(OH)和其他电生成的氧化剂(Cl,ClO)进行的氧化。

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