Abstract

The separation of cesium from low-active waste solutions from a nuclear power plant by ion exchange using synthetic zeolites Zeolon 900 and Linde AW-500 was studied. The pH of the waste solutions was 6–13 and the concentrations of sodium and potassium ions were 8–2700 and 0.5–240 mmol/L, respectively. The distribution coefficient of cesium was determined as a function of pH and sodium and potassium ion concentration. Column breakthrough curves were obtained and an empirical equation was derived to calculate the column performance at different sodium and potassium ion concentrations.

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