INTEC, UNL- CONICET, Santa Fe, Argentina.
Water Sci Technol. 2012;66(10):2209-16. doi: 10.2166/wst.2012.439.
An experimental work in a well-stirred batch recycling reactor for the photo-Fenton degradation of atrazine in water is presented. A study of the quantum efficiency is performed to assess the effectiveness of the photo-Fenton process on the atrazine degradation and total organic carbon (TOC) mineralization. Apparent and absolute quantum efficiencies of degradation and mineralization of an atrazine-based commercial herbicide are determined under different experimental conditions. Higher apparent efficiencies were found for both atrazine degradation and TOC mineralization when the ferric ion and hydrogen peroxide concentrations are increased. Because of the well known stability of the triazine ring, atrazine was not completely mineralized by the photo-Fenton process. However, a TOC reduction of 40% was achieved, being 62.5% of the maximum value that can be reached.
本文介绍了在全混批式循环反应器中进行莠去津光芬顿降解的实验工作。通过量子效率研究评估了光芬顿过程对莠去津降解和总有机碳（TOC）矿化的有效性。在不同的实验条件下，测定了基于莠去津的商业除草剂的降解和矿化的表观和绝对量子效率。当增加铁离子和过氧化氢浓度时，发现莠去津降解和 TOC 矿化的表观效率都更高。由于三嗪环的稳定性众所周知，因此光芬顿过程并不能将莠去津完全矿化。然而，TOC 减少了 40%，达到了最大可能值的 62.5%。
