Uklanjanje teških metala iz vodenih rastvora primenom modifikovanih oblika pepela i šljake iz termoelektrana

Pollutants can be removed from wastewater by a variety advanced techniques for wastewater treatment. The adsorption process can be utilized for theremoval of heavy metals from wastewater using numerous of materials. Fly ash and bottom ash are produced as a by-products of coal combustion in thermal power plants (TPP). The aim of this work has been to investigate the adsorption properties of a mixture made by adding cement and lime in fly ash and bottom ash to remove heavy metal ions (Cu2+, Zn2+, Pb2+ and Cd2+) from aqueous solutions. This paper presents the results of a modified form of fly ash and bottom ash used as an adsorbent material. The highest removal efficiency of investigated ions has been found in samples of fly ash and bottom ash from TPP Kostolac and TPP Morava with the addition of lime, while the pattern of ash from TPP Kostolac with the addition of cement showed the smallest leaching level. A selection of the material needs to be made in order to carry out further research that includs the optimization of the adsorption process and better characterizing of adsorbent materials.