Suitability of various materials for porous filters in diffusion experiments
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David Aldaba
Abstract
The suitability of different porous materials (stainless steel, VYCOR® glass, Al2O3 and PEEK) for use as confining filters in diffusion experiments was evaluated by measuring the effective diffusion coefficients (De) of neutral (HTO) and ionic solutes (Na+, Cs+, Sr2+, Cl–, SeO42−) in the materials in through-diffusion experiments. For stainless steel filters, the De values of the target solutes correlated satisfactorily with their bulk diffusion coefficient in water (Dw); thus, the diffusion process in the stainless steel filters was primarily controlled by the diffusivity of the solvated ions. For the remaining materials, the De and Dw values were also correlated for the target solutes, and the geometric factors were in the sequence: VYCOR® glass < Al2O3 < PEEK. Stainless steel and VYCOR® glass were the most appropriate materials because of their high De values, but a specific interaction of caesium with VYCOR® glass was hypothesised because the De values obtained for this solute were slightly higher than expected.
©2014 Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Excitation functions and yields for cyclotron production of radiorhenium via deuteron irradiation: natW(d,xn)181,182(A+B),183,184(m+g),186gRe nuclear reactions and tests on the production of 186gRe using enriched 186W
- A route for polonium 210 production from alpha-particle irradiated bismuth-209 target
- High accuracy plutonium mass determination by controlled-potential coulometry
- Chemometric approach for prediction of uranium pathways in the soil
- Thermodynamic model for the solubility of Ba(SeO4, SO4) precipitates
- Suitability of various materials for porous filters in diffusion experiments
- Detoxification of azinophos methyl using gamma radiation mediated advance oxidation process and investigation of degradation products by HPLC and GC-MS
- Investigation of elemental and radiological contamination of soils in two shipyards in Chittagong, Bangladesh
- Radionuclide content and state of isotopic disequilibrium in some utilized smoking pastes
- Assessment of natural radioactivity in major building materials of Xiangyang, China
Artikel in diesem Heft
- Frontmatter
- Excitation functions and yields for cyclotron production of radiorhenium via deuteron irradiation: natW(d,xn)181,182(A+B),183,184(m+g),186gRe nuclear reactions and tests on the production of 186gRe using enriched 186W
- A route for polonium 210 production from alpha-particle irradiated bismuth-209 target
- High accuracy plutonium mass determination by controlled-potential coulometry
- Chemometric approach for prediction of uranium pathways in the soil
- Thermodynamic model for the solubility of Ba(SeO4, SO4) precipitates
- Suitability of various materials for porous filters in diffusion experiments
- Detoxification of azinophos methyl using gamma radiation mediated advance oxidation process and investigation of degradation products by HPLC and GC-MS
- Investigation of elemental and radiological contamination of soils in two shipyards in Chittagong, Bangladesh
- Radionuclide content and state of isotopic disequilibrium in some utilized smoking pastes
- Assessment of natural radioactivity in major building materials of Xiangyang, China
