Precipitation and separation cations from binary aqueous systems using waste sludge from the solway process Junuzovic Halid1*, Selimovic Amra2, Begic Sabina3, Salkic Mirsad4, Cvrk Ramzija5, Ahmetovic Melisa6 1Sen. Asst., Department of Analytical Chemistry, Faculty of Technology, University of Tuzla, Bosnia & Herzegovina 2Asst. Prof. Dr., Department of Analytical Chemistry, Faculty of Technology, University of Tuzla, Bosnia & Herzegovina 3Assoc. Prof. Dr., Department of Chemical technology, Faculty of Technology, University of Tuzla, Bosnia & Herzegovina 4Full. Prof. Dr., Department of Analytical Chemistry, Faculty of Technology, University of Tuzla, Bosnia & Herzegovina 5Assoc. Prof. Dr., Department of Food technology, Faculty of Technology, University of Tuzla, Bosnia & Herzegovina 6Sen. Asst., Department of Physical chemistry and Electrochemistry, Faculty of Technology, University of Tuzla, Bosnia & Herzegovina * Corresponding Author: halid.junuzovic@untz.ba
Online published on 4 January, 2021. Abstract In addition to soda, the Solway production process yields large amounts of waste sludge that contains a high percentage of CaCO3 and Ca(OH)2. In this paper, solid waste sludge from a soda factory in Bosnia and Herzegovina of a certain granulation was used to remove metal ions from the binary system initial concentrations of 500 mg/L. The research results showed that the precipitation efficiency for the binary system Cu - Ni was 99.810% at a pH of 11.42 for Cu2+ and 99.896% for Ni2+ at a pH of 10.86, while for the binary system Pb - Zn it was 99.84% at the same pH value of 10.64. This research has shown that it is very difficult to separate and remove metal precipitation from binary systems because the optimal pH for one metal does not correspond to another metal. Top Keywords Heavy Metals, Precipitation, Waste Sludge, Solway Process. Top |