Immobilization of Liquid Radioactive Waste In Cement

Andreza Augusta Santana França

doi:10.15392/bjrs.v9i1A.1283

Immobilization of Liquid Radioactive Waste In Cement

Authors

Andreza Augusta Santana França Instituto de Pesquisas Energéticas e Nucleares IPEN-USP https://orcid.org/0000-0002-6087-9067

DOI:

https://doi.org/10.15392/bjrs.v9i1A.1283

Keywords:

radioactive waste, mixing, cement

Abstract

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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Author Biography

Andreza Augusta Santana França, Instituto de Pesquisas Energéticas e Nucleares IPEN-USP

Gerência de Rejeitos Radioativos

References

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COMISSÃO NACIONAL DE ENERGIA NUCLEAR- CNEN, “Gerência de Rejeitos Radioativos em Instalações Radiativas” – CNEN-NE-8.05, Rio de Janeiro, 1985.

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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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Published

2021-04-30

Issue

Vol. 9 No. 1A (2021)

Section

The Meeting on Nuclear Applications (ENAN) 2019

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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