Scientific concern has been raised recently about EDCs due to their omnipresence in ground water, drinking water, sewage treatment plant effluents and surface waters. EDCs are organic micro pollutants with estrogenic and androgenic activity at trace level concentrations that pose a serious risk onto human health. Conventional biological wastewater treatment plants (WWTPs) turn out to be insufficient for the complete removal of the EDCs due to their persistent and non-biodegradable character. Therefore, further modifications of existing WWTPs should be held in order to improve their effectiveness in terms of micro pollutants removal. For this purpose, a thorough research will be conducted on photocatalysis, an advanced oxidation process, concerning its efficiency and sustainability.