Toxicity and color reduction of a textile effluent containing reactive red 239 dye by electron beam irradiation
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Radiation Physics and Chemistry
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Textile effluents are a mixture of dyestuff, surfactants, dispersants, acids, alkalis and bleaching agents, among
other compounds, and some of these are highly soluble and relatively recalcitrant. Suitable improvement of
textile effluents may require combined treatment processes, such as Conventional Treatments and Advanced
Oxidative Process (AOPs). Electron beam irradiation (EBI) has been proposed as a possible technology for the
treatment of textile effluents. In this context, the aim of the present study was to evaluate the efficiency of an
Electron Beam treatment applied to toxicity and color reduction of a textile effluent containing reactive Red 239
dye. Effluent COD and TOC were also evaluated. The assessed effluents were submitted to EBI treatment at doses
ranging from 0.5 to 15 kGy. Vibrio fischeri bacteria and Daphnia similis crustaceans were exposed to both irradiated
and non-irradiated effluents, the toxicity was evaluated through EC50 (median effective concentration)
calculations. EB irradiation successfully reduced effluent toxicity and color. The EC50 for D. similis(48h) were of
6.31% ± 3.19 (non-irradiated) and 27.56% ± 9.31 (10 kGy), and for V. fischeri(15min), of 7.41% ± 1.52 (nonirradiated)
and 31.89% ± 10.99 (10 kGy), respectively. Approximately 70% toxicity reduction was obtained for
both organisms, while 95% color reduction was obtained by applying 5 kGy.
Como referenciar
GARCIA, VANESSA S.G.; ROSA, JORGE M.; BORRELY, SUELI I. Toxicity and color reduction of a textile effluent containing reactive red 239 dye by electron beam irradiation. Radiation Physics and Chemistry, v. 172, p. 1-5, 2020. DOI: 10.1016/j.radphyschem.2020.108765. Disponível em: http://repositorio.ipen.br/handle/123456789/31098. Acesso em: 30 Dec 2025.
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.