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2020 | OriginalPaper | Buchkapitel

Application of Advanced Oxidative Process for Organic Compounds Removal from Bayer Liquor

verfasst von : Miguel Antonio Soplin, Amilton Barbosa Botelho Junior, Marcela dos Passos Galluzzi Baltazar, Jorge Alberto Soares Tenório, Denise Crocce Romano Espinosa

Erschienen in: Light Metals 2020

Verlag: Springer International Publishing

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Abstract

One of the major problems in the alumina industry is organics in Bayer liquor. It causes a decrease in alumina quality and an increase in processing costs. It occurs due to the organic matter content present in bauxite. Among the technologies available to remove these organic compounds, the advanced oxidative processes (AOP) is one option. This technique consists of the degradation of recalcitrant compounds by the formation of radicals, such as the OH·. Ozonation involves the injection of O₃ for OH· generation. The process can be improved by adding H₂O₂, accelerating reaction kinetics. The aim of this work was to remove the organic compounds present in Bayer liquor through the injection of O₃ and O₃/H₂O₂ in a batch reactor. The effect of reagents’ concentration and temperature was evaluated. Results showed that increasing temperature raises the organic degradation in higher concentrations.

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Titel: Application of Advanced Oxidative Process for Organic Compounds Removal from Bayer Liquor
verfasst von: Miguel Antonio Soplin
Amilton Barbosa Botelho Junior
Marcela dos Passos Galluzzi Baltazar
Jorge Alberto Soares Tenório
Denise Crocce Romano Espinosa
Verlag: Springer International Publishing
Buch: Light Metals 2020
Print ISBN: 978-3-030-36407-6

Electronic ISBN: 978-3-030-36408-3

Copyright-Jahr: 2020
DOI: https://doi.org/10.1007/978-3-030-36408-3_9

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