Pharmaceuticals are present in an aquatic environment usually in low (ng/L) concentrations. Their continuous release can lead to unwanted effects on the nontarget organisms. The main points of their collection and release into the environment are wastewater treatment plants. The wastewater treatment plants should be upgraded by new technologies, like advanced oxidation processes (AOPs), to be able to degrade these new pollutants. In this study, the degradation of albendazole (ALB), a drug against parasitic helminths, was investigated using four UV-based AOPs: UV photolysis, UV photocatalysis (over TiO2 film), UV + O3, and UV + H2O2. The ranking of the degradation process degree of the ALB and its degradation products for studied processes is as follows: UV photolysis < UV photocatalysis with TiO2 < UV + O3 < UV + H2O2. The fastest degradation of ALB and its degradation products was obtained by UV-C + H2O2 process with a degradation efficiency of 99.95%, achieved in 15 minutes.

中文翻译：

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基于紫外线的高级氧化工艺降解阿苯达唑的可能性

药物通常以低 (ng/L) 浓度存在于水生环境中。它们的持续释放会对非目标生物产生不良影响。其收集和排放到环境中的主要场所是废水处理厂。污水处理厂应通过新技术升级，如高级氧化工艺 (AOP)，以便能够降解这些新污染物。在这项研究中，使用四种基于紫外线的 AOP 研究了阿苯达唑 (ALB)（一种抗寄生虫药物）的降解：紫外线光解、紫外线光催化（在 TiO2 膜上）、紫外线 + O3 和紫外线 + H2O2。研究过程中ALB及其降解产物的降解过程程度排序如下：UV光解<UV光催化，TiO2<UV+O3<UV+H2O2。