Adsorption of Radioactive Ions by the Calcined Montmorillonite

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Nippon Genshiryoku Gakkai-Shi

DOI:https://doi.org/10.3327/jaesj.5.377· OSTI ID:4688326

NISHIDOI, Mutsumi

Although montmorillonite has a high cation exchange capacity, it has undesirable characteristics such as swelling and disintegrating into very fine particles in water, which causes difficulty in separation from aqueous phase. To improve these faults, a new stable exchanger was prepared by the calcination of granular montmorillonite. The decrease of ion exchange capacity due to the calcination was improved by the treatment with hydrochloric acid or sodium hydroxide. It was found that the Na-form exchanger treated with sodium hydroxide was excellent in the exchange capacity and the decontamination factor for radioactive ions. A linear relationship was found between the concentration of coexisting Na ion and the adsorbed equilibrium of Cs¹³⁷ on the montmorillonite, and also between breakthrough ratio of radioactive ion and the effluent volume in the range of rather low breakthrough ratio. It is possible to adopt this new product for the decontamination of radioactive ion in water by the column operation process.

• Research Organization: Kurita Central Labs., Japan
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-027218
• OSTI ID: 4688326
• Journal Information: Nippon Genshiryoku Gakkai-Shi, Journal Name: Nippon Genshiryoku Gakkai-Shi Journal Issue: 5 Vol. 5; ISSN 0004-7120
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ADSORPTION
ALUMINUM SILICATES
CESIUM 137
CHEMISTRY
DECOMPOSITION
DECONTAMINATION
EFFICIENCY
EXPANSION
EXTRACTION COLUMNS
HEATING
HYDROCHLORIC ACID
ION EXCHANGE
ION EXCHANGE MATERIALS
MINERALS
MONTMORILLONITE
SODIUM HYDROXIDES
STABILITY
USES
WATER