Čiření vod - příprava experimentu pro výukový modul

Abstract

The Bachelor thesis is focused on the preparation of a teaching module experiment which demonstrates coagulation and flocculation. The theoretical part describes water properties and its composition, with a focus on colloidal particles and their removal by clarification. The practical part describes the preparation of model water from peat concentrate. This water was subjected to laboratory clarification by adding coagulants, namely aluminium sulphate or ferric chloride, and flocculant Sokoflok 53. In the laboratory conditions, it has been verified that the selected reagents are able to remove turbidity and reduce CODMn;, in case of aluminium sulphate by 39 % and using ferric chloride by 46 %. The result of the Bachelor thesis is a proposal of preparation of model water and suitable clarifying reagents and their doses so that the experiment can be reproduced and used for the preparation of students’ laboratory tasks on the teaching module.