DBPapers
DOI: 10.5593/SGEM2014/B52/S20.025

DISTRIBUTION OF THE TOXIC METALS IN SYSTEM WATER – SLUDGE IN THE BIOLOGICAL WATER TREATMENT PLANT

A. Duricova, D. Samesova,
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-18-6 / ISSN 1314-2704, June 19-25, 2014, Book 5, Vol. 2, 185-192 pp

ABSTRACT
The contribution concerns of the influence of the polyelectrolyte (PE) addition on heavy metals distribution before dewatering of sludge in the system: Sludge – Sludge water. The heavy metals are dangerous contaminants in the environment, because there is no existing self-cleaning mechanism. The Act No. 188/2003 accompanied by the Act No. 203/2009 adjusts the application of sludge and sediments into agricultural and forest soil. We investigated distribution of heavy metals in sludge of Banska Bystrica water treatment plant. We found out there is no polyelectrolyte influence on a cobalt and a manganese, however, there were noticeable influences found for a nickel and a zinc. The most significant influence was noticed for cuprum due to releasing of the metal to purified water and in reverse iron was bounded with PE into sludge.

Keywords: distribution heavy metals, sewage sludge, polyelectrolytes