Aplikace ultrafialového záření k dezinfekci pitné vody

Abstract

This bachelor thesis deals with the effectiveness of using ultraviolet radiation to treat drinking water. The introductory part of the thesis deals with water purification and presents the current methods of disinfection used worldwide. Furthermore, the disinfection of water using UV radiation is discussed in detail. The introductory section concludes with a brief description of the bacteria that are considered in the context of water disinfection. The main and proper part of the thesis is the experimental section, which details the procedure and results of four experiments aimed at assessing the effectiveness of UV radiation to treat drinking water infected with Bacillus subtilis under different conditions. The effectiveness of UV irradiation is investigated as a function of various factors such as the concentration of bacteria in the water, the thickness of the water layer, the material through which the water is irradiated by the UV lamp, and the length of exposure. The experimental part concludes with an evaluation of the experimental results and an assessment of the effectiveness of UV radiation for the treatment of drinking water.