Multistage Process of Deuterium and Heavy Oxygen Enrichment by Membrane Distillation
- 1 January 1997
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 32 (1-4) , 527-539
- https://doi.org/10.1080/01496399708003213
Abstract
Deuterium and oxygen-18 isotope enrichment in water by membrane distillation were studied in a 4-stage cascade. Two configurations of membrane distillation (MD) employing PTFE-flat-sheet membranes were investigated, including direct contact MD and air gap MD. The first, direct contact MD is more efficient. It is characterized by high distillate flow rate. The temperature polarization coefficients were higher for direct contact MD. H/D and 16O/18O separation factors were determined in the 4-stage cascade.Keywords
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