In the dissertation, using titanium oxide ceramics electrodes activated in a vacuum at high temperature, an efficient electrochemical reagent free water disinfection method is worked out what is applicable to the local water intakes, emergencies, and water preparation for special needs. In the water electrolysis process, a level of active chlorine can be created that inactivate microbial water pollution indicatororganisms. At the same time electrolysed chloride ion-containing water has a lasting disinfecting effect that continues for several days. Based on the results of water electrolysis process, a descriptive mathematical model is created, and the continuous operation water disinfection unit principial scheme is designed. Literature review compiled and evaluated information about water treatment methods during the period from 1958 to 2011 year. Thesis written in Latvian, the work volume is 124 pages. The work contains 75 images, 13 tables, 6 attachments, and 135 references are used.