Work

Recovery of Liquid Organic Radioactive Waste Absorbed Into Soil by Extraction

Year: 2025

Type: article

Abstract: ABSTRACT A methodology for the radiological characterization of organic radioactive liquid wastes (OLRWS) adsorbed into soils, generated in the 80s and 1990s is developed to define their management. The methodology is based on the recovery of radioactive organic liquids from their solid matrix using a solvent and their subsequent quantification. It is established on the basis of controlled tests with samples prepared with radioactive scintillation liquids mixed with soil, using different scintillation liquids, solvents, radionuclides and process types (percolation or batch). Thinner is selected as the extraction agent because it is inexpensive, easily accessible and offers good performance in the removal of radioactive organic liquids from soil. The recovery of the scintillation liquids depends mainly on their miscibility with the solvent and the affinity of the radionuclides to the soil. The method was applied to OLRWS containing only H‐3 with average activities of 39 Bq g −1 and can therefore be released from regulatory control.

Source: CleanMat.

DOI: 10.1002/clem.70015

Authors: Fabiola Monroy‐Guzman, Yurihelem Jacobo Cruz, Thelma Selene Jiménez Bravo, Ignacio Alfredo Rivero Espejel, Jorge Anguiano Arévalo, María Dolores Tenorio Castillejos

Institutions: Instituto Nacional de Investigaciones Nucleares, Tecnológico Nacional de México, Instituto Tecnológico de Tijuana

Language: English

Topic: Nuclear and radioactivity studies

Subfield: Safety, Risk, Reliability and Quality

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: gold

Estimated APC paid: $1,900