Membrane distillation employed for separation of water isotopic compounds

Journal Article · Sat Apr 01 00:00:00 EST 1995 · Separation Science and Technology

DOI:https://doi.org/10.1080/01496399508010368· OSTI ID:88706

Chmielewski, A G; Zakrzewska-Trznadel, G ^[1]

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1. Institute of Nuclear Chemistry and Technology, Warsaw (Poland)

An attempt to apply membrane distillation (MD) for the enrichment of waste isotopic compounds was made. The process was conducted as a direct-contact MD with flat-sheet microporous, hydrophobic polytetrafluorethylene (PTFE) membranes in the temperature range 323-353K. The distillate condensation was carried out directly into a stream of cooling water. The comparison between calculated Rayleigh distillation curves and the results of permeation experiments demonstrated the MD process to be more efficient than simple distillation for enrichment of the heavy isotopes in water.

• Sponsoring Organization: USDOE
• OSTI ID: 88706
• Report Number(s): CONF-931043-; ISSN 0149-6395; TRN: 95:004653-0027
• Journal Information: Separation Science and Technology, Vol. 30, Issue 7-9; Conference: 8. symposium on separation science and technology for energy applications, Gatlinburg, TN (United States), 24-28 Oct 1993; Other Information: PBD: Apr-May 1995
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
HEAVY WATER
DISTILLATION
MEMBRANES
POLYTETRAFLUOROETHYLENE
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K
ISOTOPE SEPARATION