DBPapers
DOI: 10.5593/SGEM2014/B31/S12.077

REMOVAL OF METALS FROM AQUEOUS SOLUTIONS

L. Kucerova, S. Heviankova, R. Kucerova, M. Madrova
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, 595-602 pp

ABSTRACT
The paper studies the efficiency of ash from biomass combustion in the removal of metals from aqueous solutions. Ash from industrial biomass boilers, namely bottom ash and cyclone ash, was used in the laboratory experiment. The selected metals to remove were copper, zinc and manganese. Model metal solutions in the concentration of 100 mg.l-1 were prepared. The ash grain size was 1 mm. The experiment observed how the ash acts in the course of metal removal and how the pH value changes. The pH value fluctuated from 5.6 to 10.5. The measured results imply that a reduction in the metal content occurs in the model solution. The efficiency of copper was almost 100%, in zinc it was from 18 to 100% and in manganese it was from 16 to 99%, depending on the type of ash.

Keywords: model solution, copper, zinc, manganese, biomass ash.