This work focuses on the detoxification of aqueous waste solutions polluted with 24 emerging pollutants (13 pharmaceuticals and 11 pesticides) using a coupled biological-photocatalytic facility under natural sunlight for use in crop irrigation. The polluted wastewater (urban, agricultural, and industrial) processed by conventional wastewater treatment plants is in some cases insufficient to reach the degree of purity required. This concern is of particular interest, especially in areas where a low rainfall pattern provides insufficient water resources to meet the demands caused by agriculture, which requires increased reuse of wastewater effluents. For this purpose, polluted water was first subjected to biological treatment followed by a photocatalytic process using the tandem TiO₂/Na₂S₂O₈. Residues of pharmaceuticals and pesticides were isolated by solid phase extraction (SPE) and analysed by HPLC-QqQ-MS². A notorious removal of pharmaceuticals was observed after biological treatment (average removal = 78%), except for diclofenac (31%) and carbamazepine (1%). In a contrary way, biodegradation of pesticides was inconspicuous (average removal = 48%) due to their recalcitrant properties. However, all compounds were rapidly degraded during the photocatalytic treatment because the fluence (H) required to obtain 90% degradation (H₉₀) was<470 kJ m⁻² for the most persistent pollutant (terbuthylazine). Single first order kinetic model satisfactorily explained the photooxidation of all micropollutants. Therefore, solar heterogeneous photocatalysis is presented as a promising technology to be incorporated as a tertiary process in wastewater treatment plants to remove biorecalcitrant pollutants. This implementation could be interesting especially in arid and semi-arid areas characterised by water scarcity but receiving many hours of sunshine per year, where a high percentage of reclaimed water is used for crop irrigation.

这项工作的重点是在自然阳光下使用耦合的生物-光催化设施对被 24 种新兴污染物（13 种药物和 11 种农药）污染的废水进行解毒，用于作物灌溉。传统废水处理厂处理的污染废水（城市、农业和工业）在某些情况下不足以达到所需的纯度。这个问题特别令人感兴趣，特别是在降雨模式低而无法满足农业需求的地区，这需要增加废水的再利用。为此，首先对污染水进行生物处理，然后使用串联的 TiO ₂ /Na _{2进行光催化过程}S ₂ O ₈。通过固相萃取 (SPE) 分离药物和农药残留物，并通过 HPLC-QqQ-MS ²进行分析。除双氯芬酸 (31%) 和卡马西平 (1%) 外，在生物处理后观察到了臭名昭著的药物去除（平均去除 = 78%）。相反，由于其顽固的特性，农药的生物降解并不明显（平均去除率 = 48%）。然而，所有化合物在光催化处理过程中都迅速降解，因为获得 90% 降解 (H ₉₀ ) 所需的能量 (H) <470 kJ m ^-2对于最持久的污染物（特丁嗪）。单一级动力学模型令人满意地解释了所有微污染物的光氧化。因此，太阳能非均相光催化被认为是一种很有前途的技术，可以作为三级工艺并入废水处理厂以去除生物顽固性污染物。这种实施可能会很有趣，特别是在以缺水为特征但每年接受许多小时日照的干旱和半干旱地区，其中很大一部分再生水用于作物灌溉。