Application of inorganic adsorbents and ion exchange resins for decontamination of solutions from cesium and strontium radionuclides

Book · Fri Dec 31 00:00:00 EST 1993

OSTI ID:100815

Milutin, V V; Gelis, V M ^[1]; Penzin, R A ^[2]

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1. Russian Academy of Sciences, Moscow (Russian Federation). Inst. of Physical Chemistry
2. Research Inst. of Chemical Technology, Moscow (Russian Federation)

Adsorption characteristics of different types of organic ion exchange resins and inorganic adsorbents have been investigated with respect to cesium and strontium ions. Studies have been performed through the determination of distribution coefficients of {sup 137}Cs and {sup 85}Sr tracers on those ion exchangers in sodium and calcium-containing solutions. Among the ion exchangers under investigation the ferrocyanide-based adsorbents appeared to reveal the highest selectivity with respect to Cs (K{sub d} = (2--9) {times} 10{sup 4} cm{sup 3}/g in 1 mole/l NaNO{sub 3} solution), the selectivity of the others being 1--2 orders of magnitude less. The highest selectivity with respect to Sr has been observed with synthetic zeolites (K{sub d} = 10{sup 3}--10{sup 4}) and hydrated manganese dioxide-based adsorbents (K{sub d} = 1.0 {times} 10{sup 3}--3.8 {times} 10{sup 4}). The influence of calcium ions on the adsorption of strontium is mentioned to be much stronger than that of sodium ions. As the result of the studies, the ion exchangers suitable for decontaminating industrial reservoir water from {sup 137}Cs and {sup 90}Sr have been identified. Precipitation of calcium and magnesium ions, e.g. in carbonates, from feed water prior to Sr adsorption is shown to be required to gain the efficient removal of Sr. Resultant data on industrial reservoir water decontamination in the course of pilot plant tests are given and discussed.

• OSTI ID: 100815
• Report Number(s): CONF-930906-; ISBN 0-7918-0691-X; TRN: 95:019621
• Resource Relation: Conference: `93 international conference on nuclear waste management and environmental remediation, Prague (Czech Republic), 5-11 Sep 1993; Other Information: PBD: 1993; Related Information: Is Part Of Proceedings of the 1993 international conference on nuclear waste management and environmental remediation. Volume 1: Low and intermediate level radioactive waste management; Alexandre, D.; Baker, R.; Kohout, R.; Marek, J. [eds.]; PB: 776 p.
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
WASTE WATER
DECONTAMINATION
CESIUM 137
ADSORPTION
ION EXCHANGE
STRONTIUM 90
ORGANIC ION EXCHANGERS
PERFORMANCE
ADSORBENTS
INDUSTRIAL WASTES
LOW-LEVEL RADIOACTIVE WASTES
INTERMEDIATE-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE PROCESSING
SORPTIVE PROPERTIES
EXPERIMENTAL DATA
ZEOLITES
MAGNESIUM OXIDES
SETTLING PONDS