Study on the Adsorption Characteristics of Clinoptilolite for High-Concentration Rubidium and Cesium-Containing Wastewater

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The research aims to investigate the adsorption characteristics of clinoptilolite for removing high concentrations of rubidium and cesium from wastewater.
Prepared an adsorbent from clinoptilolite by crushing and washing with pure water.
Tested adsorption under varying pH, temperature, and initial concentrations.
Analyzed adsorption isotherm models and kinetics.
Evaluated adsorption performance on actual high-concentration wastewater.
At 25°C and pH 8, the adsorption capacity was 1.25 mmol·g−1 for Rb+ and 0.68 mmol·g−1 for Cs+.
Achieved over 90% removal of 200 mg·L−1 Rb+ and Cs+ within 24 hours.
Maximum adsorption efficiency for Rb+ reached 75.41%, and for Cs+ it reached 69.26%.

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Explores adsorption effectiveness of clinoptilolite on rubidium and cesium in wastewater, indicating an economical solution for pollution control.

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CHEN et al. (2026) studied this question.

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