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Development of a thermodynamic model for zinc, lead and cadmium in saline solutions; Entwicklung eines thermodynamischen Modells fuer Zink, Blei und Cadmium in salinaren Loesungen

Abstract

Waters on aboveground and underground landfills often contain high concentrations of pollutants like zinc, lead and cadmium. Interactions between wastes and aqueous solutions could lead to a mobilisation of these elements. If their maximum solubilities are to be predicted by geochemical modelling a thermodynamic data base is needed. Due to the lack of experimental data such a data base could not be developed yet. In order to fill the gaps isopiestic as well as solubility measurements were made at 25 C. Furthermore the complex formation of zinc and cadmium was investigated and quantified by means of Raman spectrometry and evolving factor analysis. It could be proven that only complexes with two and four chlorine atoms achieve significant concentrations. On basis of these results and a critical evaluation of literature data a consistent thermodynamic data base for was developed for the calculation of activity coefficients and solubilities in the system Na, K, Mg, Ca, Zn, Cd, Cl, SO{sub 4}-H{sub 2}O at 298,15 K.
Authors:
Publication Date:
Jul 15, 2012
Product Type:
Technical Report
Report Number:
GRS-219
Subject:
54 ENVIRONMENTAL SCIENCES; AQUEOUS SOLUTIONS; CADMIUM; DATA ACQUISITION; GEOCHEMISTRY; LEAD; RAMAN SPECTRA; RISK ASSESSMENT; SALTS; SOLUBILITY; THERMODYNAMIC ACTIVITY; THERMODYNAMIC MODEL; WATER POLLUTION; ZINC
Sponsoring Organizations:
Bundesministerium fuer Bildung und Forschung, Berlin (Germany)
OSTI ID:
22345545
Research Organizations:
Gesellschaft fuer Anlagen- und Reaktorsicherheit mbH (GRS), Berlin (Germany)
Country of Origin:
Germany
Language:
German
Contract Number:
Foerderkennzeichen BMBF 02 C 0710
Other Identifying Numbers:
Other: ISBN 3-931995-89-5; TRN: DE15F1842051880
Availability:
Available from: http://www.grs.de/sites/default/files/pdf/GRS-219.pdf
Submitting Site:
DE
Size:
494 page(s)
Announcement Date:
Jun 20, 2015

Citation Formats

Hagemann, Sven. Development of a thermodynamic model for zinc, lead and cadmium in saline solutions; Entwicklung eines thermodynamischen Modells fuer Zink, Blei und Cadmium in salinaren Loesungen. Germany: N. p., 2012. Web.
Hagemann, Sven. Development of a thermodynamic model for zinc, lead and cadmium in saline solutions; Entwicklung eines thermodynamischen Modells fuer Zink, Blei und Cadmium in salinaren Loesungen. Germany.
Hagemann, Sven. 2012. "Development of a thermodynamic model for zinc, lead and cadmium in saline solutions; Entwicklung eines thermodynamischen Modells fuer Zink, Blei und Cadmium in salinaren Loesungen." Germany.
@misc{etde_22345545,
title = {Development of a thermodynamic model for zinc, lead and cadmium in saline solutions; Entwicklung eines thermodynamischen Modells fuer Zink, Blei und Cadmium in salinaren Loesungen}
author = {Hagemann, Sven}
abstractNote = {Waters on aboveground and underground landfills often contain high concentrations of pollutants like zinc, lead and cadmium. Interactions between wastes and aqueous solutions could lead to a mobilisation of these elements. If their maximum solubilities are to be predicted by geochemical modelling a thermodynamic data base is needed. Due to the lack of experimental data such a data base could not be developed yet. In order to fill the gaps isopiestic as well as solubility measurements were made at 25 C. Furthermore the complex formation of zinc and cadmium was investigated and quantified by means of Raman spectrometry and evolving factor analysis. It could be proven that only complexes with two and four chlorine atoms achieve significant concentrations. On basis of these results and a critical evaluation of literature data a consistent thermodynamic data base for was developed for the calculation of activity coefficients and solubilities in the system Na, K, Mg, Ca, Zn, Cd, Cl, SO{sub 4}-H{sub 2}O at 298,15 K.}
place = {Germany}
year = {2012}
month = {Jul}
}