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Freeze-Casting of Mining Wastes for Developing Sustainable Self-Supporting Ceramic Membranes

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  • Deyse Celestte S. Pereira

    (Graduate Program in Materials Science and Engineering (PPG-CEMat), Federal University of Campina Grande (UFCG), Av. Aprígio Veloso-882, Bodocongó, Campina Grande 58429-900, PB, Brazil
    Laboratory of Materials Technology, Department of Materials Engineering, Federal University of Campina Grande (UFCG), Av. Aprígio Veloso-882, Bodocongó, Campina Grande 58429-900, PB, Brazil)

  • Vanderlane C. Silva

    (Graduate Program in Materials Science and Engineering (PPG-CEMat), Federal University of Campina Grande (UFCG), Av. Aprígio Veloso-882, Bodocongó, Campina Grande 58429-900, PB, Brazil
    Laboratory of Materials Technology, Department of Materials Engineering, Federal University of Campina Grande (UFCG), Av. Aprígio Veloso-882, Bodocongó, Campina Grande 58429-900, PB, Brazil)

  • Josenildo I. Santos Filho

    (Graduate Program in Materials Science and Engineering (PPG-CEMat), Federal University of Campina Grande (UFCG), Av. Aprígio Veloso-882, Bodocongó, Campina Grande 58429-900, PB, Brazil
    Laboratory of Materials Technology, Department of Materials Engineering, Federal University of Campina Grande (UFCG), Av. Aprígio Veloso-882, Bodocongó, Campina Grande 58429-900, PB, Brazil)

  • Juliana M. Cartaxo

    (Laboratory of Materials Technology, Department of Materials Engineering, Federal University of Campina Grande (UFCG), Av. Aprígio Veloso-882, Bodocongó, Campina Grande 58429-900, PB, Brazil)

  • Ieda Maria G. Santos

    (Research and Extension Center—LACOM, Universidade Federal da Paraíba (UFPB), Cidade Universitária-s/n—Castelo Branco, João Pessoa 58051-085, PB, Brazil)

  • Lisiane N. L. Santana

    (Laboratory of Materials Technology, Department of Materials Engineering, Federal University of Campina Grande (UFCG), Av. Aprígio Veloso-882, Bodocongó, Campina Grande 58429-900, PB, Brazil)

  • Gelmires A. Neves

    (Laboratory of Materials Technology, Department of Materials Engineering, Federal University of Campina Grande (UFCG), Av. Aprígio Veloso-882, Bodocongó, Campina Grande 58429-900, PB, Brazil)

  • Romualdo R. Menezes

    (Laboratory of Materials Technology, Department of Materials Engineering, Federal University of Campina Grande (UFCG), Av. Aprígio Veloso-882, Bodocongó, Campina Grande 58429-900, PB, Brazil)

Abstract

In this work, kaolin processing waste (KW) and columbite–tantalite waste (CTW) from mining activities were used to manufacture sustainable self-supporting ceramic membranes using the freeze-casting technique. The wastes were characterized, and formulations using only wastes were developed. Gelatin was used in the freeze-casting as a processing aid to avoid dendritic or lamellar pores. The membranes were sintered at different temperatures (1100 °C, 1200 °C and 1300 °C) and analyzed by X-ray diffraction, scanning electron microscopy, flexural strength measurement, and mercury porosimetry. The flux through the membranes was measured using a gravity-driven dead-end filtration system. The membranes containing 80% KW and 20% CTW sintered at 1200 °C showed high porosity (59%), a water permeate flux of 126.5 L/hm 2 , and a mechanical strength of 1.5 MPa. Filtration tests demonstrated effective turbidity removal (>99%) for synthetic water consisting of tap water and bentonite, reaching 0.1 NTU. The use of mining waste has shown considerable promise for the development of sustainable and affordable membranes for water treatment applications.

Suggested Citation

  • Deyse Celestte S. Pereira & Vanderlane C. Silva & Josenildo I. Santos Filho & Juliana M. Cartaxo & Ieda Maria G. Santos & Lisiane N. L. Santana & Gelmires A. Neves & Romualdo R. Menezes, 2024. "Freeze-Casting of Mining Wastes for Developing Sustainable Self-Supporting Ceramic Membranes," Sustainability, MDPI, vol. 16(24), pages 1-12, December.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:24:p:11227-:d:1549200
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    References listed on IDEAS

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    1. Alisson Mendes Rodrigues & Fabiana Pereira da Costa & Suellen Lisboa Dias Beltrão & Jucielle Veras Fernandes & Romualdo Rodrigues Menezes & Gelmires de Araújo Neves, 2021. "Development of Eco-Friendly Mortars Produced with Kaolin Processing Waste: Durability Behavior Viewpoint," Sustainability, MDPI, vol. 13(20), pages 1-15, October.
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