| 摘要 |
PROBLEM TO BE SOLVED: To regenerate the adsorption resin at the concentration having the highest efficiency and to produce the regenerated waste liquid of the resin containing high concentration of boron, is little as possible. SOLUTION: For regeneration of the boron adsorption resin, 0.5-2 mols/liter hydrogen chloride or 0.3-1 mol/liter sulfuric acid is used. Use quantity of the regeneration chemical can be reduced and also an alkali quantity required to neutralize the regenerated waste water is reduced and besides a waste water quantity is lessened.
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