Studium možností využití nanoželeza (nZVI) při odstraňování kovů z důlní vody

Abstract

The diploma thesis deals with the use of nanoparticles of zero-valent iron (nZVI) in the removal of selected metals from mine water. The theoretical part describes mine waters, their classification and selected chemical indicators. It also focuses on the description of zero-valent nanoiron (nZVI), procedures of its preparation and modifications. The experimental part is divided into several parts. The first part deals with the activation of NANOFER STAR nZVI and verification of its reactivity using model waters of chromium, chloride and sulfate. The next part of the experiments verifies the effectiveness of nZVI for the removal of metals, specifically zinc, manganese and copper, from model waters. The last part verifies the efficiency of nZVI for metal removal on a real mine water sample from the Zlaté Hory site. From the results it can be concluded that the removal efficiency of copper and zinc from mine water is high, i.e. 95 % for zinc and practically 100 % for copper, and 65 % for manganese. Further results and a summary of the findings are given in the conclusion of the present work.