Abstract
This work aims at the application of chitosan-based materials in the treatment of oil incrustations containing Ra-226 and Ra-228 after an initial extraction process. Acid digestion in ultrasound and microwave of oil resulted in radium extraction. In this way, adsorption assay with chitosan powder (without modification) and chitosan bead (chemical modification) were performed using high-resolution gamma-ray spectrometry. The adsorption test revealed that chitosan beads were more efficient in the capture of Ra-226 and Ra-228 than chitosan control. Thus, the chitosan beads as a biomaterial may be utilized as a green alternative in the management of oil incrustation.
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