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Evaluation of a lime-mediated sewage sludge stabilisation process. Product characterisation and technological validation for its use in the cement industry

Author
Husillos, N.; Granados, R.; Blanco, M.; Cortina, J.; Martinez, S.; Marsal, M.; Guillem, M.; Puig Montraveta, Joan; Fos, C.; Larrotcha, E.; Flores, J.
Type of activity
Journal article
Journal
Waste management
Date of publication
2012-03
Volume
32
Number
3
First page
550
Last page
560
DOI
https://doi.org/10.1016/j.wasman.2011.10.021 Open in new window
Repository
http://hdl.handle.net/2117/16482 Open in new window
Abstract
This paper describes an industrial process for stabilising sewage sludge (SS) with lime and evaluates the viability of the stabilised product, denominated Neutral, as a raw material for the cement industry. Lime not only stabilised the sludge, raised the temperature of the mix to 80–100 C, furthering water evaporation, portlandite formation and the partial oxidation of the organic matter present in the sludge. Process mass and energy balances were determined. Neutral, a white powder consistin...
Citation
Husillos, N. [et al.]. Evaluation of a lime-mediated sewage sludge stabilisation process. Product characterisation and technological validation for its use in the cement industry. "Waste management", Març 2012, vol. 32, núm. 3, p. 550-560.
Keywords
Alximix, Cement reuse, Clinker, Lime stabilisation, Neutral, Sewage sludge
Group of research
AMCH - Analysi of materials in Cultural Heritage
CRnE - Barcelona Research Center in Multiscale Science and Engineering

Participants

  • Husillos Rodríguez, N.  (author)
  • Granados, R.J.  (author)
  • Blanco Varela, M.Teresa  (author)
  • Cortina Pallas, Jose Luis  (author)
  • Martinez Ramirez, Sagrario  (author)
  • Marsal Astort, Montserrat  (author)
  • Guillem, Manel  (author)
  • Puig Montraveta, Joan  (author)
  • Fos, C.  (author)
  • Larrotcha, E.  (author)
  • Flores, J.  (author)