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Permeation rate and transfer mechanismof copper(II) through a supported liquid membrane containing LIX65Nas a mobile carrier were studied. The experiment was carried out under the condition that the rate-determining step of the dialysis was the diffusion in the membrane. The binary diffusivities of the oxime and the copper-oxime complex for solute-solvent system and apparent diffusivity of copper in the supported liquid membranewere measured. The apparent diffusivity of copper was approximately proportional to the -1.0 power of the liquid membrane solution viscosity. The copper flux was constant in the range of pH>3in the feed solution, but decreased with decreasing pH in the range of pH<3. Copper concentration in the feed solution hardly influenced the copper flux in the range of 10"MO"1mol dm 3. The copper flux was proportional to the 1st power of the oxime concentration in the liquid membranewhen pH of the feed solution was 4.47, but the value of the power of the oxime concentration increased with decreasing value of pHof the feed solution. The concentration profile of the copper-oxime complex in a stack of the supported liquid membranewas approximately in agreement with the theory.

Static corrosion tests were performed with an inactive HLW glass of R7T7 type in order to evaluate alteration-phase formation and associated Cs release during the glass corrosion. The tests were performed in NaOH solutions at elevated temperatures in order to accelerate the corrosion. Crystalline phases formed in the corroded glass were analyzed by use of XRD, in addition to the solution analysis. The results indicated that; 1)Analcime or Na-beidellite or both of them form during the corrosion depending on the conditions, 2)Si rich amorphous phases are contained in the alteration-phases, 3)In addition to solution pH, solution concentrations of Na and K sensitively affect formation of analcime and Na-beidellite, 4)Analcime formation accelerates the glass corrosion, 5)Most of Cs in the glass is retained in the alteration-phases by sorption onto Na-beidellite or incorporation into amorphous phases and pollucite

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