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Stabilisation of dewatered domestic sewage sludge by lime addition as raw material for the cement industry: understanding process and reactor performance

Autor
Valderrama, C.; Granados, R.; Cortina, J.
Tipus d'activitat
Article en revista
Revista
Chemical engineering journal
Data de publicació
2013-10
Volum
232
Pàgina inicial
458
Pàgina final
467
DOI
https://doi.org/10.1016/j.cej.2013.07.104 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S1385894713010231 Obrir en finestra nova
Resum
This paper describes the performance and feasibility of the domestic dewatered sewage sludge (DDSS) stabilised with lime as raw material for the cement industry. The stabilisation process uses a screw-based plug reactor to provide mixing conditions suitable to reduce the water content of the sludge to level of 10%a w/w by taking advantage of the exothermic reaction of the hydration of lime to form portlandite, which favours the evaporation of water. The high alkalinity provided by the added lime...
Paraules clau
Biomass Mineralisation, Energy And Mass Balances, Mixing Reactor, Process Description, Sludge Stabilisation With Lime, Stabilised Sludge
Grup de recerca
CRnE - Centre de Recerca en Ciència i Enginyeria Multiescala de Barcelona
R2EM - Resource Recovery and Environmental Management

Participants