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

Débora Costa Sena Pereira,

Vanderlane C. Silva,

Josenildo Isidro Santos Filho

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(24), P. 11227 - 11227

Published: Dec. 21, 2024

In this work, kaolin processing waste (KW) and columbite–tantalite (CTW) from mining activities were used to manufacture sustainable self-supporting ceramic membranes using the freeze-casting technique. The wastes characterized, formulations only developed. Gelatin was in as a aid avoid dendritic or lamellar pores. sintered at different temperatures (1100 °C, 1200 °C 1300 °C) analyzed by X-ray diffraction, scanning electron microscopy, flexural strength measurement, mercury porosimetry. flux through measured gravity-driven dead-end filtration system. containing 80% KW 20% CTW showed high porosity (59%), water permeate of 126.5 L/hm2, mechanical 1.5 MPa. Filtration tests demonstrated effective turbidity removal (>99%) for synthetic consisting tap bentonite, reaching 0.1 NTU. use has shown considerable promise development affordable treatment applications.

Language: Английский

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

Débora Costa Sena Pereira,

Vanderlane C. Silva,

Josenildo Isidro Santos Filho

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(24), P. 11227 - 11227

Published: Dec. 21, 2024

In this work, kaolin processing waste (KW) and columbite–tantalite (CTW) from mining activities were used to manufacture sustainable self-supporting ceramic membranes using the freeze-casting technique. The wastes characterized, formulations only developed. Gelatin was in as a aid avoid dendritic or lamellar pores. sintered at different temperatures (1100 °C, 1200 °C 1300 °C) analyzed by X-ray diffraction, scanning electron microscopy, flexural strength measurement, mercury porosimetry. flux through measured gravity-driven dead-end filtration system. containing 80% KW 20% CTW showed high porosity (59%), water permeate of 126.5 L/hm2, mechanical 1.5 MPa. Filtration tests demonstrated effective turbidity removal (>99%) for synthetic consisting tap bentonite, reaching 0.1 NTU. use has shown considerable promise development affordable treatment applications.

Language: Английский

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