The intensification of the solar photo-Fenton system with ferrioxalate photoactive complexes and ultrasound applied to the mineralization of 15 mg/L carbamazepine aqueous solution (CBZ) was evaluated. The experiments were carried out in a solar compound parabolic collector (CPC) pilot plant reactor coupled to an ultrasonic processor. The dynamic behavior of hydroxyl radicals generated under the different studied reaction systems was discussed. The initial concentrations of hydrogen peroxide and ferrous/oxalic acid and pH were found to be the most significant variables (32.79%, 25.98% and 26.04%, respectively). Under the selected optimal conditions ([H₂O₂]₀ = 150 mg/L; [Fe²⁺]₀ = 2.5 mg/L/[(COOH)₂]₀ = 12.1 mg/L; pH = 5) CBZ was fully degraded after 5 min and 80% of TOC was removed using a solar photo-Fenton system intensified with ferrioxalate (SPFF). However, no improvement in the mineralization using SPFF process combined with ultrasound was observed. More mild pH conditions could be used in the SPFF system if compared to the traditional photo-Fenton (pH 3) acidic systems. Finally, a possible reaction pathway for the mineralization of CBZ by the SPFF system was proposed and therein discussed.

中文翻译：

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铁氧体复合物和超声强化太阳光芬太酮降解卡马西平的研究

评估了具有草酸亚铁盐光敏复合物的太阳光芬顿体系的增强作用，以及超声对15 mg / L卡马西平水溶液（CBZ）矿化的作用。实验是在耦合到超声处理器的太阳能复合抛物面收集器（CPC）中试反应堆中进行的。讨论了在不同研究体系下生成的羟基自由基的动力学行为。发现过氧化氢和亚铁/草酸的初始浓度和pH是最显着的变量（分别为32.79％，25.98％和26.04％）。在选定的最佳条件下（[H ₂ O ₂ ] ₀  = 150 mg / L; [Fe ²⁺ ] ₀  = 2.5 mg / L / [（COOH）₂] ₀  = 12.1 mg / L；pH = 5）5分钟后CBZ完全降解，并使用用草酸亚铁（SPFF）增强的太阳光芬顿体系除去80％的TOC。但是，未观察到使用SPFF工艺与超声相结合的矿化作用得到改善。与传统的光芬顿（pH 3）酸性系统相比，SPFF系统可以使用更温和的pH条件。最后，提出并讨论了通过SPFF系统矿化CBZ的可能反应途径。