Water is the most important resource for life on earth. In particular, humans need clean and safe water to prosper. Drinkable water availability has always represented an issue, thus nowadays more effort is devoted to developing modern techniques for water purification. The most implemented and adopted water treatments involve chlorine compounds such as hypochlorite, chloramines and chlorine dioxide, which are highly active in killing bacteria. Inevitably, those processes cause changes in the organoleptic features of the treated water because of the used chemicals. Other technologies with no added compounds, i.e. UV light disinfection, ozone treatment and electrochemical advanced oxidation processes (EAOP) could be an alternative.