DBPapers
DOI: 10.5593/SGEM2014/B31/S12.098

THE INFLUENCE OF ORE MINING WATER TREATMENT ON DRINKING WATER PARAMETERS

S. Heviankova,Z. Bilska,P. Tuckova, M. Marschalko
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-13-1 / ISSN 1314-2704, June 19-25, 2014, Book 3, Vol. 1, 767-774 pp

ABSTRACT
In treating mine water from ore extraction, a sample from Zlaté Hory was used, where ores, such as Cu, Pb, Zn, Ag and Au, used to be mined. Such mine water is characteristic of lower pH values and higher concentrations of Mn, Fe, Zn, Cu and SO4 2- The objective of the mine water treatment experiments was to comply with the physical - chemical and microbiological quality requirements for drinking water. According to the drinking water quality requirements, in the mine water there were increased concentrations of Mn 2.8mg.l-1; Fe 1.1mg.l-1; Zn 6.2mg.l-1; Cu 2.6mg.l-1; SO4 2- 480mg.l-1; N-NH4 1.6mg.l-1 and the pH value of the mine water sample was 4.7. Organic, biological and microbiological pollution of the mine water sample was minimal. In mine water treatment the processes of alkalization, filtration, ion exchange and microbial stabilisation were applied. Calcium hydroxide, in the form of limewash, was used for alkalization, which was followed by filtration of the settled sample. Ion exchange was applied only on 2/3 of the sample water, which was later mixed with the rest of the pre-treated water. Next, the water was stabilised using ClO2 produced via Twinoxide technology. The analyses results of such treated water, both microbiological as well as physical-chemical, meet the requirements set for drinking water quality.

Keywords: ore mining water, treatment, ion exchange, drinking water, Twinoxide technology