Szukana fraza: [Abstract = The most profitable dose of the Fenton's reagent was 0.6\/1.8 Fe2\+\/H2O2 g\/dm3. The degree of COD removal from the wastewater with the use of the Fenton's reagent was higher by 10% on average compared to PIX 113. TOC and TN removal efficiency, using the Fenton's reagent was higher by 13% and 40.5% respectively when compared to the coagulation process.]