Dezembro 2024 vol. 11 num. 2 - X Simpósio Internacional de Inovação e Tecnologia

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ZETA POTENTIAL AS A METHOD FOR SELECTING NEW ADVANCED BIOPOLYMERS IN THE TREATMENT OF COPPER TAILINGS

ZETA POTENTIAL AS A METHOD FOR SELECTING NEW ADVANCED BIOPOLYMERS IN THE TREATMENT OF COPPER TAILINGS

Almeida, Alana ; Craneiro, Pedro ; Alt, Rayane ; Fialho, Rosana ;

Full Article:

There are numerous critical aspects related to mineral extraction, such as water and energy consumption, besides the generation of tailings from the mineral processing. This work aims to select new advanced biopolymers for the treatment of copper tailings using the zeta potential (ζ) technique. Original samples obtained from a mining company in Bahia underwent drying and characterization of the solid and liquid phases. Then, the preparation of the suspension was carried out similarly to the process conditions for the residue flocculation tests and the measurement of the ζ potential. Three biopolymers proved to be promising flocculants for phase separation, which are more environmentally friendly than commercial flocculants and provide greater water clarification and reuse.

Full Article:

There are numerous critical aspects related to mineral extraction, such as water and energy consumption, besides the generation of tailings from the mineral processing. This work aims to select new advanced biopolymers for the treatment of copper tailings using the zeta potential (ζ) technique. Original samples obtained from a mining company in Bahia underwent drying and characterization of the solid and liquid phases. Then, the preparation of the suspension was carried out similarly to the process conditions for the residue flocculation tests and the measurement of the ζ potential. Three biopolymers proved to be promising flocculants for phase separation, which are more environmentally friendly than commercial flocculants and provide greater water clarification and reuse.

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Palavras-chave: tailings treatment, copper, advanced biopolymers, flocculation, zeta potential,

Palavras-chave: tailings treatment, copper, advanced biopolymers, flocculation, zeta potential,

DOI: 10.5151/siintec2024-393506

Referências bibliográficas
  • [1] "1INSTITUTO BRASILEIRO DE MINERAÇÃO. Livro Verde da Mineração do Brasil. Brasília, 2022. Disponível em: https://ibram.org.br/wp-content/uploads/2022/11/IBRAM_ LivroVerde-digital-030123ld.pdf. Acesso em: 18 abr. 2024.
  • [2] 2AGÊNCIA NACIONAL DE MINERAÇÃO. Anuário Mineral Brasileiro: principais substâncias metálicas. Brasília, 2023. Disponível em: . Acesso em: 18 abr. 2024.
  • [3] 3ZAGO, G. Novel natural-based polymers for dewatering iron ore tailings. 2022. Tese (Doutorado em Engenharia Química) – Universidade de São Paulo, São Paulo, 2022.
  • [4] 4BOTHA, L; SOARES, J. The Influence of Tailings Composition on Flocculation. Disponível em: . Acesso em: 15 abr. 2024
  • [5] 5INTERNACIONAL ENERGY AGENCY. The Role of Critical Minerals in Clean Energy Transitions. Paris, 2021. Disponível em: https://www.iea.org/reports/the-role-of-critical-minerals-in-clean-energy-transitions. Acesso em: 29 abr. 2024.
  • [6] 6Agência Brasileira do Cobre. Anúario Brasileiro do Cobre. São Paulo, 2023. Disponível em: . Acesso em: 14 jun. 2024.
  • [7] 7Hunter, R.J., 1981. Zeta Potential in Colloid Science. Academic Press Limited, London."
Como citar:

Almeida, Alana; Craneiro, Pedro; Alt, Rayane; Fialho, Rosana; "ZETA POTENTIAL AS A METHOD FOR SELECTING NEW ADVANCED BIOPOLYMERS IN THE TREATMENT OF COPPER TAILINGS", p. 637-644 . In: . São Paulo: Blucher, 2024.
ISSN 2357-7592, DOI 10.5151/siintec2024-393506

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