Preliminary studies on electron beam irradiation as a treatment method of radioactive oil sludge

Ana Paula Gimenes Tessaro; Roberto Vicente; Júlio Takehiro Marumo; Antonio Carlos Silva Costa Teixeira; Leandro Goulart de Araujo

doi:10.15392/bjrs.v9i1A.1416

Authors

Ana Paula Gimenes Tessaro Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP) https://orcid.org/0000-0002-6612-4036
Roberto Vicente Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP)
Júlio Takehiro Marumo Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP)
Antonio Carlos Silva Costa Teixeira University of São Paulo (USP) https://orcid.org/0000-0002-2790-2704
Leandro Goulart de Araujo Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP) https://orcid.org/0000-0002-9358-0942

DOI:

https://doi.org/10.15392/bjrs.v9i1A.1416

Keywords:

Oil sludge, Electron beam, Radioactive waste

Abstract

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.

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Author Biographies

Ana Paula Gimenes Tessaro, Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP)

Serviço de Gerência de Rejeitos Radioativos (SEGRR)
rank: Doctoral fellow
Roberto Vicente, Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP)

Serviço de Gestão de Rejeitos Radioativos (SEGRR)
rank: Professor
Júlio Takehiro Marumo, Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP)

Serviço de Gestão de Rejeitos Radioativos (SEGRR)
rank: Professor
Antonio Carlos Silva Costa Teixeira, University of São Paulo (USP)

Research Group in Advanced Oxidation Processes (AdOx), Department of Chemical Engineering, University of São Paulo (USP)
rank: Professor
Leandro Goulart de Araujo, Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP)

Serviço de Gestão de Rejeitos Radioativos (SEGRR)
rank: Post-doctoral fellow

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