Immobilization of Liquid Radioactive Waste In Cement
DOI:
https://doi.org/10.15392/bjrs.v9i1A.1283Palabras clave:
radioactive waste, mixing, cementResumen
Immobilization of radioactive waste is required to comply with nuclear regulations and waste acceptance criteria in a repository, which require the waste to be solid or immobilized in solid form within a durable and resistant matrix . Cement is the most frequently used material for the immobilization of liquid, low-level waste, since it has many advantages, such as the ease of preparation at room temperature and the low cost. In this paper, we describe the characteristics of cement-water mixtures, homogenized in a drum using a vibration table as the mixing device. Common Portland cement was used as the immobilization matrix. The homogeneity of the mixtures is evaluated using cement dye in appropriate amounts. Initially, the distribution of the mineral dye was made by visual inspection. The batches were carried out with three different ways of feeding the components. Different results were obtained depending on the feeding methods employed.
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INTERNATIONAL ATOMIC ENERGY AGENCY- IAEA, Vienna. “Conditioning of low- and intermediate- level radioactive wastes”. Vienna, 1983. (IAEA Technical Report Series nº 222).
INTERNATIONAL ATOMIC ENERGY AGENCY- IAEA,” Classification of radioactive waste – General safety guide”. Vienna, 2009.
COMISSÃO NACIONAL DE ENERGIA NUCLEAR- CNEN, “Gerência de Rejeitos Radioativos em Instalações Radiativas” – CNEN-NE-8.05, Rio de Janeiro, 1985.
COMISSÃO NACIONAL DE ENERGIA NUCLEAR- CNEN, “Gerência de Rejeitos de Baixo e Médio Níveis de Radiação” – CNEN-NN-8.01, Rio de Janeiro, 2014.
AMERICAN SOCIETY FOR TESTING AND MATERIALS- ASTM. Standard guide for sampling strategies for heterogeneous wastes. Designation: D5956−15, 2015.
C. L. Grants and P. A. “Pelton Role of Homogeneity in Powder Sampling”. ASTM, 1973. Disponível em: , Access at 21/08/17.
VICENTE, R. “Projeto de Pesquisa: Processo para imobilização de rejeitos radioativos em cimento”. IPEN, São Paulo, 2016.
WESTINGHOUSE ELETRIC CO. “Decontamination, decommissioning and remediation / Global Waste Management”, 2015. Disponível em: , Access at 25/07/2017.
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Derechos de autor 2021 Brazilian Journal of Radiation Sciences (BJRS)
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