The requirement of feasible adsorption-regeneration systems in the treatment of emerging pollutants such as pharmaceuticals is a social demand. In this work, the treatment of a mixture with sulfamethoxazole (SMX) and methyl paraben (MP) was performed by the preparation of biochar derived from the lime fiber waste at different conditions (320-500°C and residence time 5-30 min). Based on the adsorption efficiency (maximum uptake MP 54.25 mg/g and SMX 64.04 mg/g) and energy expenditure, the biochar obtained at 320° with a residence time of 30 min was selected as the best material. Subsequently, a deep study of this biochar adsorption process demonstrated that pseudo-second order model fitted well the adsorption kinetics of both pollutants and the Freundlich isotherm model describes the binary system equilibrium. After that, the regeneration of the adsorbent was carried out by advanced oxidation processes. Initially, Fenton process was considered and the regeneration of the adsorbent was performed in homogeneous and heterogeneous systems. The necessity of continuous addition of H₂O₂ led to the evaluation of other alternatives (electro-oxidation-H₂O₂ or electro-Fenton). The optimisation of the conditions was performed in liquid phase and operational parameters such as cathode electrode (carbon black modified electrodes), H₂O₂ production, intensity, pH and degradation kinetics were studied. Among them, the electro-Fenton process demonstrated to be quite successful in the removal of the pollutants and it was applied in successive cycles of adsorption-regeneration.

在新兴污染物如药物的处理中需要可行的吸附-再生系统是一种社会需求。在这项工作中，通过在不同条件下（320-500°C和停留时间5-30分钟）制备源自石灰纤维废料的生物炭，用磺胺甲恶唑（SMX）和对羟基苯甲酸甲酯（MP）处理混合物。 。根据吸附效率（最大吸收MP 54.25 mg / g和SMX 64.04 mg / g）和能量消耗，在320°停留时间30分钟的生物炭被选为最佳材料。随后，对该生物炭吸附过程的深入研究表明，伪二级模型很好地拟合了两种污染物的吸附动力学，而Freundlich等温模型描述了二元系统平衡。之后，吸附剂的再生是通过高级氧化工艺进行的。最初，考虑使用Fenton工艺，并在均相和非均相系统中进行吸附剂的再生。连续添加H的必要性₂ O ₂导致了其他替代方法的评估（电氧化-H ₂ O ₂或电Fenton）。条件的优化是在液相中进行的，并研究了运行参数，例如阴极电极（炭黑改性电极），H ₂ O _2的产生，强度，pH值和降解动力学。其中，电芬顿法证明在去除污染物方面非常成功，并且已应用于连续的吸附再生循环中。