Publication detail

Recovery of H2SO4 and NaOH from Na2SO4 by electrodialysis with heterogeneous bipolar membrane

Authors: Kroupa Jan | Kinčl Jan | Cakl Jiří

Year: 2014

Type of publication: ostatní - článek ve sborníku

Name of source: MELPRO - International Conference Membrane and Electromembrane Processes. Book of Abstracts.

Publisher name: Ústav makromolekulární chemie AV ČR

Place: Praha

Page from-to: 88

Titles:

Language	Name	Abstract	Keywords
eng	Recovery of H2SO4 and NaOH from Na2SO4 by electrodialysis with heterogeneous bipolar membrane	Electrodialysis with heterogeneous bipolar membrane was studied experimentally in laboratory scale to examine the recovery of the sodium sulfate solution into sulfuric acid and sodium hydroxide. Capacity of the system was evaluated in dependence on membrane configuration, product concentration, temperature, and circulation flow rate. A preliminary economic evaluation of electrodialysis with heterogeneous bipolar membrane in uranium ore mining wastewater treatment plant was also carried out. The process can be dominantly used where the purity of the sulfuric acid and sodium hydroxide recycled does not play a significant role and the high costs of the homogeneous bipolar membranes negatively affect the economy.	electrodialysis; bipolar membrane; heterogeneous membrane; sulfuric acid; sodium hydroxide; recovery

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