The combination of photocatalysis and biodegradation was investigated for the removal of nine selected pharmaceuticals as a means to reduce loadings into the environment. The combined process, consisting of a resource‐efficient mild photocatalysis and a subsequent biological treatment, was compared to single processes of intensive photocatalysis and biological treatment. The UV‐TiO₂ based photocatalysis effectively removed atorvastatin, atenolol and fluoxetine (>80%). Biological treatment after mild photocatalytic pretreatment removed diclofenac effectively (>99%), while it persisted during the single biological treatment (<50%). Moreover, the biodegradation of atorvastatin, caffeine, gemfibrozil and ibuprofen was enhanced after mild photocatalytic pretreatment compared to biological treatment alone. The enhanced biodegradation of these pharmaceuticals appeared to be triggered by the biodegradation of photocatalytic products. Mild photocatalysis followed by biological treatment is an effective and resource‐efficient combination for pharmaceutical removal that could substantially reduce the loading of pharmaceuticals into the environment.

中文翻译：

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温和的光催化预处理后，药物的生物降解性得到改善

研究了光催化和生物降解相结合的方法，以去除9种选定的药物，以减少向环境中的负荷。将包括资源节约型温和光催化和后续生物处理的组合过程与强化光催化和生物处理的单个过程进行了比较。UV-TiO ₂基于光的催化作用可有效去除阿托伐他汀，阿替洛尔和氟西汀（> 80％）。温和的光催化预处理后的生物处理有效地去除了双氯芬酸（> 99％），而在单次生物处理期间仍持续存在（<50％）。此外，与单独的生物处理相比，温和的光催化预处理后阿托伐他汀，咖啡因，吉非贝齐和布洛芬的生物降解作用得到增强。这些药物的增强的生物降解似乎是由光催化产物的生物降解引发的。轻度光催化后再进行生物处理，是一种有效且资源有效的药物去除组合，可大大减少药物向环境中的负荷。