Vol. 20 No. 4 (2021): Revista UIS Ingenierías
Articles

Evaluation of Coal Bottom Ash for clay brick manufacturing: a preliminary study

Janneth Torres-Agredo
Universidad Nacional de Colombia
Luisa Fernanda Mosquera-Idrobo
Universidad Nacional de Colombia
Patricia Paz-Villegas
C.I. Lago Verde S.A.S
Miguel Fernando Díaz-Huertas
C.I. Lago Verde S.A.S

Published 2021-08-11

Keywords

  • bottom ash,
  • clay bricks,
  • coal,
  • reuse,
  • waste management,
  • solid waste,
  • Laser Granulometry,
  • X-ray,
  • Fluorescence,
  • X-ray diffraction
  • ...More
    Less

How to Cite

Torres-Agredo, J., Mosquera-Idrobo, L. F., Paz-Villegas, P., & Díaz-Huertas, M. F. (2021). Evaluation of Coal Bottom Ash for clay brick manufacturing: a preliminary study. Revista UIS Ingenierías, 20(4), 161–170. https://doi.org/10.18273/revuin.v20n4-2021013

Abstract

Currently, industrial, economic, and social growth has produced large amounts of solid waste, which harms the environment and human health. Coal bottom ash (CBA) is a waste produced by burning coal. A preliminary study on CBA, to be used as raw material for the clay bricks manufacture, is presented. CBA was characterized through the Laser Granulometry, X-ray Fluorescence (XRF), X-ray diffraction (XRD) techniques; besides, the real and apparent density and the content of organic matter. Furthermore, the environmental tests Toxicity Characteristic Leaching Procedure (TCLP) and Daphnia Pulex acute toxicity test, were applied. It was found that the CBA is an amorphous material, and is composed of oxides of silica, iron, aluminum, and others, while the environmental tests satisfactorily met the applicable standards. According to the results, it is concluded that the CBA has a great potential to be used in the manufacture of bricks.

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