Application of water treatment plant sludge in ceramic material production
State of the art
DOI:
https://doi.org/10.46421/euroelecs.v6.7993Keywords:
State of the art, Sludge, Water treatment plant, CeramicsAbstract
The rapid expansion of urban activities has led to a significant increase in the generation of sludge from water treatment plants (WTPS), whose final disposal poses environmental, technical, and economic challenges. Limitations related to landfill availability and the high costs associated with waste disposal have driven the search for more sustainable alternatives, among which the reuse of WTPS in the construction industry stands out, particularly in ceramic material production. This study aims to discuss the state of the art regarding the application of WTPS in ceramics, compiling and analyzing major scientific advances, knowledge gaps, and future prospects. The adopted methodology is descriptive and qualitative, based on a literature review of scientific publications from 1990 to September 2023. The review focused on relevant studies that explore the use of WTPS in binary mixtures with clay and/or other residues. Results indicate that the partial replacement of clay with WTPS, especially in proportions up to 20%, can improve the properties of ceramic materials, highlighting it as a feasible alternative for both waste management and the supply of construction inputs.
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