Monitoring mikropolutantů procházejících ČOV a testování metod pro jejich odstranění

Abstract

The diploma thesis focuses on the issue of micro-pollutants, especially drugs, in municipal wastewater treatment plants. These substances, although present in small quantities, represent a diverse group that accumulates in the environment. After screening water from the Opava and Odra rivers, as well as wastewater, the following substances were selected: metformin, telmisartan and caffeine. They have a signifficant presence in the waters. Metformin typically around 2 μg/L, while caffeine can reach values up to 2.5 μg/L and telmisartan even up to 3.5 μg/L. The aim of the work is monitoring of selected micro-pollutants. Then the design and testing of effective methods for their removal from wastewater (including adsorption and bioremediation). An overall procedure/equipment for the removal of these substances is then proposed and its effectiveness is tested. The best method seems to be adsorption on activated carbon with the addition of Na2CO3, which is able to achieve almost 90% removal for all three selected substances. Bioremediation using bacteria is less effective or ineffective, anaerobic type bacteria from the commercial mixture have proven to be the best.