This work analyzes the removal of reactive blue BF-5G and chocolate brown textile dyes from an aqueous mixture by using adsorption, advanced oxidative processes (AOP), and the combination of these two processes. The adsorbent used was obtained by calcinating chicken eggshells at 1073 K. The carbonization led to an increase in the surface area, diameter, and volume of the pores, the presence of hydroxyl, carboxyl, and carbonyl groups on the surface of the material, which became positively charged. The operational conditions of the adsorptive process that produced the highest percentages of removal were pH 5.5, 2 g L⁻¹, and 200 rpm. The kinetic evolution was rapid in the first minutes and was best described by the pseudo-first order (PFO) model, while the equilibrium was attained in 60 min and was best described by the Langmuir model. The AOP that attained the greatest degradation was the photo-Fenton process using pH 3.5, along with iron and hydrogen peroxide concentrations of 3 mg L⁻¹ and 80 mg L⁻¹, respectively, with UV-C radiation. In the kinetic study, the system stabilization occurred after 90 min and had PFO_AOP behavior. The adsorption and AOP processes proved to be efficient in removing the dyes. However, the combined processes (AOP followed by adsorption) attained the best results. The use of the combined process significantly contributed to the reduction in the toxicity of the solutions. The use of the AOP process followed by adsorption is, therefore, a viable alternative for the treatment of textile dyes.

这项工作分析了通过使用吸附、高级氧化过程 (AOP) 以及这两种过程的组合从水性混合物中去除活性蓝 BF-5G 和巧克力棕色纺织染料。所用吸附剂是通过在 1073 K 下煅烧鸡蛋壳获得的。碳化导致孔隙的表面积、直径和体积增加，材料表面存在羟基、羧基和羰基，这变得带正电。产生最高去除百分比的吸附过程的操作条件是 pH 5.5, 2 g L ^-1和 200 转/分。动力学演化在最初的几分钟内很快，并且最好用伪一级 (PFO) 模型来描述，而在 60 分钟内达到平衡，最好用朗缪尔模型来描述。获得最大降解的 AOP 是使用 pH 3.5 以及铁和过氧化氢浓度分别为 3 mg L ^-1和 80 mg L ^-1以及 UV-C 辐射的光芬顿工艺。在动力学研究中，系统稳定发生在 90 分钟后，并具有 PFO _AOP行为。事实证明，吸附和 AOP 工艺可有效去除染料。然而，组合工艺（AOP 后吸附）获得了最好的结果。组合工艺的使用显着有助于降低溶液的毒性。因此，在吸附之后使用 AOP 工艺是处理纺织染料的可行替代方案。