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Type: Artigo de periódico
Title: Radium and potassium-40 in solid wastes from the oil industry
Author: Gazineu, MHP
Hazin, CA
Abstract: Activity concentrations of Ra-226, Ra-228 and K-40 in scales and sludge generated during oil extraction and production operations were determined using an HPGe gamma spectrometric system. Concentrations ranged from 42.7 to 2110.0 kBq kg(-1) for Ra-226, 40.5 to 1550.0 kBq kg(-1) for Ra-228 and 20.6 to 186.6 kBq kg(-1) for K-40. The magnitude of these results demonstrates the need of screening oil residues for their radionuclide content in order to decide about their final disposal. (C) 2007 Elsevier Ltd. All rights reserved.
Subject: scales
oil industry
natural radioactivity
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Rights: fechado
Identifier DOI: 10.1016/j.apradiso.2007.07.012
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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