Removal of water and iodine by solid sorbents: Adsorption isotherms and kinetics

Ronghong Lin, Lawrence L Tavlarides

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Tritium and iodine-129 are two major radioactive elements that are present in off-gases from spent fuel reprocessing plants. Adsorption by solid sorbents is the state-of-the-art technique for removal of these species from off-gases. Modeling and simulating adsorption processes require accurate adsorption equilibrium and kinetic data to permit reasonable estimates of process parameters. We have developed a continuous flow single-pellet adsorption system to gather accurate adsorption equilibrium and kinetic data for adsorption of water by molecular sieve 3A and for adsorption of iodine by silver exchanged mordenite. In this paper, the design of the water and iodine adsorption experimental systems are briefly described and results of water adsorption experiments are presented and discussed. Water uptake curves are fitted with the linear-driving force model and the shrinking-core model to determine kinetic parameters. Preliminary results from iodine adsorption experiments will be presented in the conference.

Original languageEnglish (US)
Title of host publicationInternational Nuclear Fuel Cycle Conference, GLOBAL 2013: Nuclear Energy at a Crossroads
PublisherAmerican Nuclear Society
Pages1567-1572
Number of pages6
Volume2
StatePublished - 2013
EventInternational Nuclear Fuel Cycle Conference: Nuclear Energy at a Crossroads, GLOBAL 2013 - Salt Lake City, UT, United States
Duration: Sep 29 2013Oct 3 2013

Other

OtherInternational Nuclear Fuel Cycle Conference: Nuclear Energy at a Crossroads, GLOBAL 2013
CountryUnited States
CitySalt Lake City, UT
Period9/29/1310/3/13

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ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering

Cite this

Lin, R., & Tavlarides, L. L. (2013). Removal of water and iodine by solid sorbents: Adsorption isotherms and kinetics. In International Nuclear Fuel Cycle Conference, GLOBAL 2013: Nuclear Energy at a Crossroads (Vol. 2, pp. 1567-1572). American Nuclear Society.