Zhodnocení odvodňování kalů pomoci šnekolisu

Abstract

The theoretical part of this diploma thesis deals with the general procedure in wastewater treatment with subsequent sludge production. The procedure of wastewater treatment from the mechanical part of the treatment plant to the biological one is briefly described here. Furthermore, the individual processes in sludge management, its formation, treatment, thickening, stabilization and dewatering are presented. The last chapter of this section describes various options for sludge dewatering. Here is a scree press described in more detail, which is the main part of this work. The following practical part describes the Brušperk wastewater treatment line. The equipment occurring at the treatment plant is described here, through which the wastewater gradually passes until the final dewatering and the formation of sludge with the required dry matter. A decanting centrifuge has also been described here, which has been replaced by a new dewatering a scree press. In this part, the values obtained from sludge dewatering using a centrifuge and a screw press are presented and the efficiency of sludge dewatering is compared with each other. The results are used to evaluate the new drainage equipment. A summary of all achieved results is given in the end.