Freshwater, representing 2.53% of the total water volume available on earth, is becoming an increasing acute issue as scarce resource in many regions of the world, especially in under-developed countries where 1 billion people have no access to safe drinking water and/or sanitation, threatening almost 800 million lives with schistosomiasis. Furthermore, are we sure that our european water cycle is safe ? With regards to recent observations and studies made over the last deacade, during which wastewater effluents of hospitals (HWW) and urban areas (UWW) and even surface water nearby were analysed. The results showed clearly that even our developed societies should improve our way of cleaning water. Indeed, studies performed analyzing the content of different rivers nearby hospitals and even urban areas showed an non-negligible and even disturbing contamination of the aquatic ecosystem by toxic and xenobiotic substances, the so-called emerging contaminants (ECs) which include pesticides, industrial compounds, cosmetics, steroid hromones, pharmaceuticals (PhCs) and drugs of abuse. For the past 20-30 years, the demand and use of PhCs has increased exponentially, and especially for the treatment of cancer (antineoplastic/cytotoxic drugs) and other chronic diseases such as type 2 diabetes (anti-diabetic drugs). Indeed, in 2012, respectively 14.1 and 40 million new cancer and diabetes cases were reported and those figures should both be rising twice as much within the next 20 years. Taking cognizance of these results, scientists have investigated (and still are) during the last years an improved sustainable wastewater treatment for the complete abatement and mineralization of these persistent increasing amounts of toxic drugs present in the effluents of hospitals. So far, the abatement has been achieved by mean of advanced photocatalytic oxidation processes (AOPs) using TiO2 as material for the catalyst and the membrane. However, complete mineralization is still not possible. This latter consists in total elimination of the original compound as well as its degradation by-products generated by interaction with the photocatalyst and other eventual intermediates which in some cases (ICM