Removal of contaminants of emerging concern by photocatalysis TiO2 nanotubes array. influence of the operation conditions

Contaminants of Emerging Concern (CECs), present in wastewater, have a negative impact on human health and aqueous ecosystems, even at low concentrations. Conventional wastewater treatment processes are not able to completely eliminate these pollutants, which causes their presence in the aquatic medium. Therefore, it is necessary to use alternative methods for an effcient removal of CECs in water effluents. Advanced Oxidation Processes (AOPs) are based on the generation of hidroxyl radicals, highly reactive species with a high oxidation potential, capable of reacting with organic compounds in a non-selective manner (Salimy, M. et al., 2017).