Disinfection in riverwater samples

Abstract

Water is a renewable natural resource, essential to all living beings on Earth. Pollution and quality degradation of this resource end up to a significant reduction of its availability for the general population at the same time it leads to loss in hydric safety. In this way, the present study aimed at carrying on a survey on water disinfection for a given river, with the clear purpose of finding a more efficient method of disinfection amongst four known ways of doing so, namely: chloride, UV light, ozone gas and fire heat for boiling water. To conduct the experiment, four scientific tests were carried, one for each method. All the experiments were conducted from a culture medium. A secondary interest would be which of the culture mediums would be the best in terms of large scale considering its cost. Thus, it was possible to observe that the chloride culture medium was the most efficient for cleaning, which led us to conclude it was the method chosen for disinfection in large scale also due to its cost in comparison with the others