When responding to environment emergencies such as terrorist attacks involving radiological dispersal device (RDD) or industrial incidents in large urban areas, it is important to have analytical protocols for the detection of radioactive materials in decontamination solution and knowledge of their adsorption on various building materials. In this work, cesium was selected as a model radiological compound and non-radioactive cesium-133 was used as a surrogate of the radioactive cesium-134 and cesium-137. The Thermo X-series II ICP-MS system was used for detecting and quantifying cesium in various water solutions.Cesium solutions for surface decontamination and adsorption on various building materials were analyzed. The release of cesium from test coupons was determined to negligible for cesium adsorption on building materials. Duplicate analyses for each initial cesium concentration showed a good reproducibility. The effects of temperature, cesium concentration, and contact time on process kinetics and equilibrium were evaluated. Among kinetic models studied, the pseudo-second order reaction model best described the kinetic test results.

Analysis of cesium adsorbed on various building materials

244th National Meeting (2012)

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