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New apparatus for measuring radon adsorption on solid adsorbents

Journal Article · · Industrial and Engineering Chemistry Research; (United States)
DOI:https://doi.org/10.1021/ie00057a024· OSTI ID:5760056
;  [1]; ;  [2];  [3]
  1. Missouri Univ., Columbia, MO (United States). Dept. of Chemical Engineering
  2. Missouri Univ., Columbia, MO (United States). Dept. of Nuclear Engineering
  3. Missouri Univ., Columbia, MO (United States). Research Reactor Facility
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A new experimental system was designed to measure radon uptake by solid adsorbents from air or other carrier gases/vapors. The total amount of radon adsorbed corresponding to a specific gas-phase concentration was determined by simultaneously measuring the solid-phase and gas-phase concentrations. The system was used to measure radon adsorption isotherms on BPL activated carbon at 288, 298, and 308 K and on silica gel and molecular sieve 13X at 298 K. The isotherms were of type III according to Brunauer's classification. The heat of adsorption data indicated that the BPL activated carbon provided a heterogeneous surface for radon adsorption. The equilibrium data were correlated by the Freundlich equation. In this paper the possible adsorption mechanism and the use of the adsorption isotherms to measure indoor radon concentrations are discussed.

OSTI ID:
5760056
Journal Information:
Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 30:9; ISSN 0888-5885; ISSN IECRE
Country of Publication:
United States
Language:
English

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Related Subjects

440100* -- Radiation Instrumentation
440600 -- Optical Instrumentation-- (1990-)
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
47 OTHER INSTRUMENTATION
ACTIVATION ENERGY
ADSORBENTS
ADSORPTION
ADSORPTION HEAT
ADSORPTION ISOTHERMS
AIR
CARBON
CONCENTRATION RATIO
DATA
DESIGN
ELEMENTS
ENERGY
ENTHALPY
EQUILIBRIUM
EQUIPMENT
FLUIDS
GASES
INFORMATION
ISOTHERMS
MOLECULAR SIEVES
NONMETALS
PHYSICAL PROPERTIES
RADON
RARE GASES
SILICA GEL
SOLIDS
SORPTION
TEMPERATURE RANGE
TEMPERATURE RANGE 0273-0400 K
THERMODYNAMIC PROPERTIES
VAPORS