Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Influence of Temperature, Agitation, Sludge Concentration and Solids Retention Time on Primary Sludge Fermentation
Year:2012
Research Areas
  • Water treatment,
  • Water analysis,
  • Decontamination
Information
Abstract
The aim of this research was to determine the influence of temperature, agitation, sludge concentration, and solids retention time (SRT) to obtain readily biodegradable organic matter on primary sludge (PS) fermentation, which would be used as substrate in a biological nutrient removal (BNR) process. Stirring and heating the sludge as well as increasing SRT improved the PS fermentation, producing a large amount of soluble chemical oxygen demand (SCOD). The influence of each operational parameter on PS hydrolysis was observed clearly. A great performance on SCOD production was obtained when the PS was stirred and heated for 3 days. However, PS concentration did not affect the fermentation. Sludge agitation is a simple process with minimal energy consumption.Warming the sludge is very interesting in those plants with anaerobic digestion, where heat energy is obtained from biogas. Therefore, PS fermentation can be improved with aminimum investment and leveraging existing resources in a wastewater treatment plant (WWTP). Fermenter volume can also be reduced if sludge is being heated and stirred during fermentation.
International
Si
JCR
Si
Title
International Journal of Chemical Engineering
ISBN
1687-8078
Impact factor JCR
Impact info
Volume
2012
10.1155/2012/861467
Journal number
From page
1
To page
8
Month
FEBRERO
Ranking
Participants
  • Autor: Jesús Sánchez Rubal
  • Autor: Juan Antonio Cortacans Torre
  • Autor: Isabel del Castillo Gonzalez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Tratamiento y gestión sostenible de los recursos
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