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Influence of Temperature, Agitation, Sludge Concentration and Solids Retention Time on Primary Sludge Fermentation
Joint Authors
Sánchez Rubal, J.
Cortacans Torre, J. A.
del Castillo González, I.
Source
International Journal of Chemical Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-10
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
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 a minimum 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.
American Psychological Association (APA)
Sánchez Rubal, J.& Cortacans Torre, J. A.& del Castillo González, I.. 2012. Influence of Temperature, Agitation, Sludge Concentration and Solids Retention Time on Primary Sludge Fermentation. International Journal of Chemical Engineering،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-504184
Modern Language Association (MLA)
Sánchez Rubal, J.…[et al.]. Influence of Temperature, Agitation, Sludge Concentration and Solids Retention Time on Primary Sludge Fermentation. International Journal of Chemical Engineering No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-504184
American Medical Association (AMA)
Sánchez Rubal, J.& Cortacans Torre, J. A.& del Castillo González, I.. Influence of Temperature, Agitation, Sludge Concentration and Solids Retention Time on Primary Sludge Fermentation. International Journal of Chemical Engineering. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-504184
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-504184