Application of WDXRF and EDXRF apectrometry for chemical characterization in oil sludge using the fundamental parameter algorithm
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Brazilian Journal of Radiation Sciences
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Oil sludge is a waste product generated by the oil industry, comprising organic
substances (primarily long-chain polyaromatic, aromatic, and aliphatic hydrocarbons),
inorganic compounds (such as sediments and metallic and non-metallic oxides), water,
and oil processing residues. Radionuclides from the 238U and 232Th decay chains can be
present in oil sludge, which justifies its classification as naturally occurring radioactive
material (NORM). The oil industry produces approximately 60 million tons of oil sludge
annually. Given the continuous generation of this waste, the development of additional
storage sites will be necessary, incurring substantial costs. Furthermore, the storage and
transportation of oil sludge pose significant environmental contamination risks. Due to
its complex and heterogeneous composition, establishing a standardized methodology for
classifying oil sludge presents considerable challenges. The development of an effective
methodology for the analysis and classification of oil sludge is essential for proper waste
management, as well as for facilitating the creation of treatment and reuse alternatives. Xray
fluorescence spectrometry (XRF) emerges as a promising analytical technique for
classifying oil sludge, enabling direct, non-destructive analysis, thereby reducing both
waste and analysis costs. In this study, wavelength dispersive X-ray fluorescence
(WDXRF) and energy dispersive X-ray fluorescence (EDXRF) techniques were
compared to assess their performance in analyzing the major (1–100%) and minor (0.01–
0.99%) constituents in oil sludge samples. The elements were quantified using the
Fundamental Parameters (FP) algorithm. The objective of this work is to develop a
methodology for determining both major and minor elements in oil sludge, contributing
to a more effective management of this waste.
Como referenciar
PINTO, A.L.M.; SCAPIN, M.A.; SOUZA, A.L. de; PAIXAO, C.M.; COTRIM, M.E.B.; GUILHEN, S.N. Application of WDXRF and EDXRF apectrometry for chemical characterization in oil sludge using the fundamental parameter algorithm. Brazilian Journal of Radiation Sciences, v. 12, n. 4A, p. 1-20, 2025. DOI: 10.15392/2319-0612.2024.2623. Disponível em: https://repositorio.ipen.br/handle/123456789/49659. Acesso em: 29 Apr 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.