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    The Comparison of Two Different Electro-Membrane Processes' Performance for Industrial Applications
    (WILEY-V C H VERLAG GMBH, 2010) Öztekin, Yasemin; Yazıcıgil, Zafer; Ata, Nejla; Karadayı, Neriman
    The recovery of bases from solutions containing salt forms of potassium was studied in cells separated by commercial ion exchange membranes. For this aim, two different types of techniques were applied. In the first technique, an equimolar quantity of acid solutions and different metallic salt solutions were used as an anolyte and a catholyte, respectively, in the cell separating with anion exchange membrane (AEM). In the second technique, an equimolar quantity of acid, base solutions, and different metallic salt solutions were used as an anolyte, a catholyte, and a solution in the middle chamber of the cell, respectively, in the cell separating with cation exchange membrane (CEM) and AEM. Effects of the current, the type of the membranes, the concentrations of the solutions, and the type of solutions on the recovery of bases were investigated and both of the techniques were compared. The results of the experiments were evaluated with the Statistical Package for Social Sciences program.
  • Küçük Resim Yok
    Öğe
    The electrochemical investigation of salts partition with ion exchange membranes
    (ELSEVIER SCIENCE BV, 2008) Ata, Nejla; Yazicigil, Zafer; Oztekin, Yasemin
    The regenaration of acid and base from the solutions containing metallic salts was achieved by salt splitting method (SSM) using not only anion-exchange membranes (AEM) but also cation-exchange membrane (CEM). In these experiments, while the ion exchange membrane was anion-exchange membrane, acid solutions were used as an anolyte and different salts of potassium were used as a catholyte. In addition to these experiments, while the ion exchange membrane was cation-exchange membrane, base solutions were used as a catholyte and different salts of potassium were used as an anolyte. The effects of current density, initial concentrations of anolyte and catholyte solutions, the type of salt solution and the type of the ion-exchange membranes on the recovery ratio of bases and acids were investigated. The results of the experiments were investigated with the Statistical Package for Social Sciences (SPSS) program. The obtained results show that this technique can be used not only for recovering the acid and base wastes of industry but also for removing the impurities in order to obtain pure acids and bases in laboratory conditions. (c) 2008 Elsevier B.V. All rights reserved.