Treatment of radioactive liquid waste by tubular type reverse osmosis module.
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The applicability of reverse osmosis to radioactive liquid waste treatment was studied using a tubular type module. When four modules were used in a series, circulating volume of concentrate was much greater than permeate volume, therefore solute concentration and circulating rate of concentrate can be assumed uniform in the axial direction of the modules.DFs of stable elements contained in the tap water were 36-40 for Na, 50-55 for K, 170-250 for Mg and 90-160 for Ca. When Na concentration increased about ten times, DFs for all elements slightly decreased.For actual liquid waste tagged with radionuclides, DFs were in the range of 35-40 for 134Cs, 150-200 for 85Sr, and 180-280 for 58Co. These DF values indicate the possibility of the treatment of low radioactive liquid waste by reverse osmosis.
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関連論文
- 放射性廃棄物管理専門研究会(京都大学原子炉実験所,2000年11月29〜30日)
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