Open AccessPreliminary studies on electron beam irradiation as a treatment method of radioactive oil sludge
Author(s) -
Ana Paula Gimenes Tessaro,
Roberto Vicente,
Júlio Takehiro Marumo,
Antônio Carlos Silva Costa Teixeira,
Leandro Goulart de Araujo
Publication year - 2021
Publication title -
brazilian journal of radiation sciences
Language(s) - English
Resource type - Journals
ISSN - 2319-0612
DOI - 10.15392/bjrs.v9i1a.1416
Subject(s) - radioactive waste , irradiation , radiochemistry , materials science , waste management , radionuclide , environmental science , human decontamination , degradation (telecommunications) , organic matter , environmental chemistry , chemistry , nuclear chemistry , nuclear physics , physics , telecommunications , organic chemistry , computer science , engineering
Radiation-induced advanced oxidation processes have been proposed for the treatment of various types of wastes. However, electron beam technologies for the removal of recalcitrant compounds in petroleum wastes are still poorly understood. This work aims at evaluating the effects on the degradation of organic matter from oil sludge by electron beam irradiation. Characterization methods were employed to identify the chemical elements present in the waste. Radiometric analysis was performed to identify radionuclides and measure dose rates. Preliminary immobilization of the untreated waste with cement indicated resistance values very close to the minimum established in national regulation. To treat the waste, an electron beam accelerator, model Dynamitron II, with variable current up to 25 mA was employed and the irradiation doses ranged from 20 to 200 kGy. Solutions were prepared with an initial H2O2 concentration of 1.34 mol·L-1. The effects on the removal of total organic carbon are discussed.