Selective strontium removal from a sodium nitrate aqueous medium by nanofiltration-complexation

Journal Article · Tue Dec 31 23:00:00 EST 1996 · Separation Science and Technology

DOI:https://doi.org/10.1080/01496399708003217· OSTI ID:471763

Gaubert, E; Barnier, H; Maurel, A ^[1]

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1. CEN de Cadarache, Saint-Paul Lez Durance (France); and others

In aqueous medium, selective complexation increases the ionic separation by nanofiltration. The combination of nanofiltration and complexation can be applied to the nuclear effluents treatment. To separate radioelements from a sodium salt medium, poly(acrylic acid) is associated to the FILMTEC NF 70 membrane. Effects of transmembrane pressure, pH, ligand concentration and ionic strength on salts retention are described, and the complexation constants are estimated. Finally, to reach the objectives, a strontium two-stages concentration by nanofiltration-complexation with a control of retentate salinity is investigated in a nonactive solution case.

• Sponsoring Organization: USDOE
• OSTI ID: 471763
• Report Number(s): CONF-951057--
• Journal Information: Separation Science and Technology, Journal Name: Separation Science and Technology Journal Issue: 1-4 Vol. 32; ISSN 0149-6395; ISSN SSTEDS
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
40 CHEMISTRY
AQUEOUS SOLUTIONS
REMOVAL
STRONTIUM
ULTRAFILTRATION