The introductory part of the diploma thesis describes the basics of wastewater and sewage sludge
treatment in municipal wastewater treatment plants. The thesis then summarizes the Slovene legislation,
which regulates the future usage of sewage sludge in Slovenia. Next, it outlines the alternatives to
sewage sludge treatment in wastewater treatment plants and introduces the origins of sewage and the
ways of how to reduce or even remove water pollutants at their sources. The practical part investigates
the state of sewage sludge in the central wastewater treatment plant Jesenice and what happens to it after
its treatment. On the basis of the sewage sludge analysis results, the thesis researches further options for
its usage. The sewage sludge in the municipal wastewater treatment plant Jesenice is polluted with heavy
metals (copper, mercury, nickel, lead) and a sample also contained Salmonella. The usage of such
sewage sludge is very limited; that is why the thesis explores the reasons for inordinate water pollution
in the Municipality of Jesenice, which leads to sewage sludge's contamination, and suggests proposition
for its reduction.
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