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Recovery of NaCl from Saline Mine Water in an Electrodialysis|Evaporation System

M. Turek

Faculty of Chemistry, Silesian University of Technology, PL-44 101 Gliwice

 

E-mail: turek@polsl.gliwice.pl

Received: 5 April 2002

Abstract: A system comprising electrodialysis (ED), evaporation, and crystallization was proposed as an alternative for comprehensive utilization of low-salinity mine waters. The pro tability of the system was analyzed using experimental data from a cascade of four electrodialyzers equipped with membranes of low transport number for divalent ions. The ED concentrate composition was optimized taking into account the corresponding environmental legislation, technological requirements, and plant eciency. For mine waters with chloride content of 7.27 g dm−3, the value of 90 g of Cl per dm3 of ED concentrate was obtained.

Full paper in Portable Document Format: 571a50.pdf

 

Chemical Papers 57 (1) 50–52 (2003)

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