Analysis of ozonation technology in the framework of drinking water treatment

Purification of natural water from a surface water source is complicated by anthropogenic environmental factors. Industrial, household, and agricultural human activities negatively affect the quality of natural water, as the proportion of chemical and organic compounds increases, which significantly reduce the efficiency of purification. This work is devoted to improving the quality indicators of natural water purification to drinking requirements. The experimental part was carried out at a water treatment plant located on the banks of the Oka River. The experimental studies are based on the step-by-step analysis of the operating ozonation plant with the determination of the output concentration of ozone in the ozone-air mixture, as well as testing of primary and secondary ozonation at a laboratory ozonation plant. As part of the experiment, key water quality indicators were determined to be able to interpret the effect of ozonation on various types of waters with different dosages. Based on the results obtained, conclusions were drawn on the possibility of using primary ozonation for the water under study, and the optimal dosage was determined. Taking into account the specifics of ozone treatment of natural river water, recommendations for reducing the concentration of by-products of the ozonation process are described. The effect of secondary ozonation on the organoleptic characteristics of purified water was also determined as part of the experiment.