Institut national de la recherche scientifique (INRS-Eau Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec, QC, Canada G1K 9A9.
J Environ Manage. 2013 Dec 15;131:25-32. doi: 10.1016/j.jenvman.2013.09.027. Epub 2013 Oct 17.
The objective of this work was to evaluate the potential of a sonochemical oxidation process for the degradation of carbamazepine (CBZ). Several factors, such as electrical power, treatment time, pH and initial concentration of CBZ were investigated. Using a 2(4) factorial matrix, the best performance for CBZ degradation (90.1% of removal) was obtained with an electrical power of 40 W, a treatment time of 120 min and an initial pH of 10.0 imposed in the presence of 6.0 mg L(-1) of CBZ. The treatment time and the calorimetric power were the most influential parameters on the degradation rate of CBZ. Subsequently, the optimal experimental parameters for CBZ degradation were investigated using central composite design. The sonochemical oxidation process, applied under optimal operating conditions (at an electrical power of 43 W for 116 min), oxidized 86 and 90% of the initial CBZ concentration of 5.62 mg L(-1) and 8.05 μg L(-1), respectively. During the sonochemical process, CBZ was primarily transformed into anthranilic acid and acridine.
本工作旨在评估声化学氧化过程对卡马西平（CBZ）降解的潜力。考察了多种因素，如电功率、处理时间、pH 值和 CBZ 的初始浓度。使用 2(4)析因矩阵，在电功率为 40 W、处理时间为 120 min 和初始 pH 值为 10.0 的条件下，当存在 6.0 mg L(-1) CBZ 时，CBZ 降解的最佳性能（去除率为 90.1%）。处理时间和量热功率是影响 CBZ 降解速率的最主要参数。随后，使用中心复合设计研究了 CBZ 降解的最佳实验参数。在最佳操作条件（电功率为 43 W，处理时间为 116 min）下，声化学氧化过程将初始浓度为 5.62 mg L(-1)和 8.05 μg L(-1)的 CBZ 分别氧化了 86%和 90%。在声化学过程中，CBZ 主要转化为邻氨基苯甲酸和吖啶。
