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

Journal Article · Wed Jan 01 00:00:00 EST 1997 · 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-; ISSN 0149-6395; TRN: 97:002366-0028
• Journal Information: Separation Science and Technology, Vol. 32, Issue 1-4; Conference: 9. symposium on separation science and technology for energy applications, Gatlinburg, TN (United States), 22-26 Oct 1995; Other Information: PBD: Jan-Feb 1997
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
05 NUCLEAR FUELS
STRONTIUM
REMOVAL
AQUEOUS SOLUTIONS
ULTRAFILTRATION