Ozonation.
https://www.emergency-wash.org/water/en/technologies/technology/ozonation
👉🏼 PDF: https://app.box.com/s/u91w23owtk8omelxl0ohyrog2gtitxio ___ Ozonation is a water treatment process that destroys microorganisms and degrades organic pollutants through the infusion of ozone, a gas produced by subjecting oxygen molecules to a high electrical voltage. During emergencies, the technology is mainly applicable in the stabilisation and recovery phases in urban contexts, where the experience in using such systems already exists.