DOI: 10.5593/SGEM2014/B31/S12.069


S. Heviankova,T. Klimko, M. Kyncl, R. Mazur
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, 533-538 pp

Depending on the character and chemical composition of the mine water during specific conditions it can be used as an alternative source of drinking water. The mine water that was used for the experiment was taken at the mine water treatment plant Svatava at the brown coal deposit Sokolov (CZ) and had a character of partially treated water (increased pH value, precipitation of Fe, Al, Mn oxides/hydroxides). Tested mine water with pH value 7.2 and electrical conductivity value 120 mS.m-1 contains 105.8 mg.l-1 of Ca, 52.2 mg.l-1 of Mg, 0.5 mg.l-1of Fe and of 485.7 mg.l-1 of SO4 2-. The mine water samples have been treated according to the requirements for drinking water quality by ion exchange resin technique. During column experiments strongly acidic catex Amberlite IR 120 H+ and weakly basic annex Purolite A-100 OH- has been used. All together 30 litres of mine water has been treated and the exchange capacity of the used resin content (400 ml) has not been exhausted. The treated mine water has been mixed with raw mine water (ratio 1:1.75) to achieve the optimal Ca and Mg content. The mixed water sample has been microbiologically stabilised by adding 0.03 % solution of ClO2 (dose 0.1 and 0.2 ml.l-1). Treated mine water (after mixing) with pH value 7.4, electrical conductivity value 47 mS.m-1 and content 31.2 mg.l-1 of Ca, 13.4 mg.l-1 of Mg, <0,1 mg.l-1 of Fe and 158.8 mg.l-1 of SO4 2- fulfilled requirements for the drinking water quality in terms of Decree No. 252/2004 Coll. (CZ). Similarly, concentration of Cl- (0.1–0.2 mg.l-1) and bacterial colonies (0-1 KTJ.ml-1) also fulfilled established limits. Therefore, ion exchange resin technique and final mixing of raw and treated mine water resulted in effective possibility of mine water use as the potential source of drinking water.

Keywords: mine water, drinking water, ion exchange resin, sulphates