Sustainable Ceramic Membranes from Clays and Mining Wastes by Rapid Sintering Process
This study characterized wastes from scheelite and columbite-tantalite mining, as well as kaolin processing, to produce microfiltration membranes for wastewater treatment using a fast-sintered process. After characterization, the wastes were mixed with clays, pressed, and sintered at low temperature...
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| Format: | Article |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2025-02-01
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| Series: | Materials Research |
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| author | Hellen C. T. Firmino Déborah dos S. Gomes Vanderlane C. da Silva Ieda M. G. Santos Helio L. Lira Lisiane N. L. Santana Romualdo R. Menezes Gelmires de A. Neves |
| author_facet | Hellen C. T. Firmino Déborah dos S. Gomes Vanderlane C. da Silva Ieda M. G. Santos Helio L. Lira Lisiane N. L. Santana Romualdo R. Menezes Gelmires de A. Neves |
| author_sort | Hellen C. T. Firmino |
| collection | DOAJ |
| description | This study characterized wastes from scheelite and columbite-tantalite mining, as well as kaolin processing, to produce microfiltration membranes for wastewater treatment using a fast-sintered process. After characterization, the wastes were mixed with clays, pressed, and sintered at low temperatures of 1050 and 1100 °C. The resulting membranes exhibited pore size distributions ranging from 3 μm to 180 μm and flexural strengths exceeding 14 MPa. In a crossflow filtration system, permeate fluxes ranged from 177 L/h.m2 to 228 L/h.m2 at 2 bar, with permeabilities from 99 to 130 L/h.m2 bar depending on the waste content. Membranes with smaller pore sizes effectively removed 90% to 96% of turbidity from a water/clay suspension containing micrometric clay particles. This approach demonstrates that rapid sintering of ceramic membranes from mining waste can effectively reduce environmental impacts and energy costs, providing a sustainable solution for wastewater treatment. |
| format | Article |
| id | doaj-art-a84a8250b3fd426bb9de947c7f36ead1 |
| institution | OA Journals |
| issn | 1516-1439 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj-art-a84a8250b3fd426bb9de947c7f36ead12025-08-20T02:15:33ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392025-02-012810.1590/1980-5373-mr-2024-0499Sustainable Ceramic Membranes from Clays and Mining Wastes by Rapid Sintering ProcessHellen C. T. Firminohttps://orcid.org/0000-0003-0627-2587Déborah dos S. GomesVanderlane C. da SilvaIeda M. G. SantosHelio L. Lirahttps://orcid.org/0000-0002-1527-9935Lisiane N. L. SantanaRomualdo R. Menezeshttps://orcid.org/0000-0003-4316-2168Gelmires de A. NevesThis study characterized wastes from scheelite and columbite-tantalite mining, as well as kaolin processing, to produce microfiltration membranes for wastewater treatment using a fast-sintered process. After characterization, the wastes were mixed with clays, pressed, and sintered at low temperatures of 1050 and 1100 °C. The resulting membranes exhibited pore size distributions ranging from 3 μm to 180 μm and flexural strengths exceeding 14 MPa. In a crossflow filtration system, permeate fluxes ranged from 177 L/h.m2 to 228 L/h.m2 at 2 bar, with permeabilities from 99 to 130 L/h.m2 bar depending on the waste content. Membranes with smaller pore sizes effectively removed 90% to 96% of turbidity from a water/clay suspension containing micrometric clay particles. This approach demonstrates that rapid sintering of ceramic membranes from mining waste can effectively reduce environmental impacts and energy costs, providing a sustainable solution for wastewater treatment.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392025000100203&lng=en&tlng=enWastesscheelitecolumbite-tantalitekaolinmembrane |
| spellingShingle | Hellen C. T. Firmino Déborah dos S. Gomes Vanderlane C. da Silva Ieda M. G. Santos Helio L. Lira Lisiane N. L. Santana Romualdo R. Menezes Gelmires de A. Neves Sustainable Ceramic Membranes from Clays and Mining Wastes by Rapid Sintering Process Materials Research Wastes scheelite columbite-tantalite kaolin membrane |
| title | Sustainable Ceramic Membranes from Clays and Mining Wastes by Rapid Sintering Process |
| title_full | Sustainable Ceramic Membranes from Clays and Mining Wastes by Rapid Sintering Process |
| title_fullStr | Sustainable Ceramic Membranes from Clays and Mining Wastes by Rapid Sintering Process |
| title_full_unstemmed | Sustainable Ceramic Membranes from Clays and Mining Wastes by Rapid Sintering Process |
| title_short | Sustainable Ceramic Membranes from Clays and Mining Wastes by Rapid Sintering Process |
| title_sort | sustainable ceramic membranes from clays and mining wastes by rapid sintering process |
| topic | Wastes scheelite columbite-tantalite kaolin membrane |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392025000100203&lng=en&tlng=en |
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