Tritium water distillation assisted with adsorption and isotopic exchange

Y. Miho, Satoshi Fukada, T. Motomura, J. Mizutani, S. Hirano, M. Arimoto, T. Takeuchi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Water distillation packed with materials having adsorption ability is proposed for wastewater detritiation, and behavior of HTO depletion or enrichment is experimentally investigated. It is proved that the apparent volatility ratio of H2O-to-HTO is increased by an isotopic effect on adsorption under a steady-state operation. Danckwerts'surface renewal model is applied to explain the Tenrichment process in a lab-scale water distillation column. The effect is estimated in terms of an adsorption enhancement factor included in the T separation factor, σHT,ad, which depends on the kinds of adsorbents and liquid-vapor flow conditions. The value of the enhancement factor is also confirmed σHT,ad = 1.02 in a comparatively large-scale distillation operation packed with Sulzer packing or Raschig ring coated with zeolite adsorbent. A large-scale distillation tower can be designed to detritiate radioactive wastewater generated in Fukushima's Daiichi NPS based on the present experimental results.

Original languageEnglish
Pages (from-to)326-332
Number of pages7
JournalFusion Science and Technology
Volume71
Issue number3
DOIs
Publication statusPublished - Apr 1 2017

Fingerprint

Tritium
distillation
tritium
Distillation
Ion exchange
Adsorption
Adsorbents
adsorption
Water
Wastewater
adsorbents
water
Zeolites
Distillation columns
Towers
augmentation
volatility
towers
Vapors
depletion

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Miho, Y., Fukada, S., Motomura, T., Mizutani, J., Hirano, S., Arimoto, M., & Takeuchi, T. (2017). Tritium water distillation assisted with adsorption and isotopic exchange. Fusion Science and Technology, 71(3), 326-332. https://doi.org/10.1080/15361055.2017.1291235

Tritium water distillation assisted with adsorption and isotopic exchange. / Miho, Y.; Fukada, Satoshi; Motomura, T.; Mizutani, J.; Hirano, S.; Arimoto, M.; Takeuchi, T.

In: Fusion Science and Technology, Vol. 71, No. 3, 01.04.2017, p. 326-332.

Research output: Contribution to journalArticle

Miho, Y, Fukada, S, Motomura, T, Mizutani, J, Hirano, S, Arimoto, M & Takeuchi, T 2017, 'Tritium water distillation assisted with adsorption and isotopic exchange', Fusion Science and Technology, vol. 71, no. 3, pp. 326-332. https://doi.org/10.1080/15361055.2017.1291235
Miho Y, Fukada S, Motomura T, Mizutani J, Hirano S, Arimoto M et al. Tritium water distillation assisted with adsorption and isotopic exchange. Fusion Science and Technology. 2017 Apr 1;71(3):326-332. https://doi.org/10.1080/15361055.2017.1291235
Miho, Y. ; Fukada, Satoshi ; Motomura, T. ; Mizutani, J. ; Hirano, S. ; Arimoto, M. ; Takeuchi, T. / Tritium water distillation assisted with adsorption and isotopic exchange. In: Fusion Science and Technology. 2017 ; Vol. 71, No. 3. pp. 326-332.
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