Příčiny výskytu těžkých kovů v kanalizaci OVAK, a.s.

Abstract

The subject of these graduation theses is an examination of causes of heavy metals occurrence into the sewerage OVAK, a.s. owned. The thesis includes measuring data evaluation in phase from 04. 12. 2008 till 13. 1. 2009. There were 12 monitoring stations in Ostrava for the measuring. Furthermore the thesis occupies by comparison of the work of ÚČOV Ostrava with another sewage works in production of pollution at draining water and in production of sludge, these all relative to one resident. For a comparison with another ČOV the thesis results from the values reported on Integrate registry of pollution. The thesis considers point sources and surface sources polluted by heavy metals in urban sewerage.