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Co-digestion of grease trap sludge and sewage sludge.

Davidsson, Åsa LU ; Borell Lövstedt, Charlotta LU ; la Cour Jansen, Jes LU ; Gruvberger, C and Aspegren, H (2008) In Waste Management 28(6). p.986-992
Abstract
Redirection of organic waste, from landfilling or incineration, to biological treatment such as anaerobic digestion is of current interest in the Malmö-Copenhagen region. One type of waste that is expected to be suitable for anaerobic digestion is sludge from grease traps. Separate anaerobic digestion of this waste type and co-digestion with sewage sludge were evaluated. The methane potential was measured in batch laboratory tests, and the methane yield was determined in continuous pilot-scale digestion. Co-digestion of sludge from grease traps and sewage sludge was successfully performed both in laboratory batch and continuous pilot-scale digestion tests. The addition of grease trap sludge to sewage sludge digesters was seen to increase... (More)
Redirection of organic waste, from landfilling or incineration, to biological treatment such as anaerobic digestion is of current interest in the Malmö-Copenhagen region. One type of waste that is expected to be suitable for anaerobic digestion is sludge from grease traps. Separate anaerobic digestion of this waste type and co-digestion with sewage sludge were evaluated. The methane potential was measured in batch laboratory tests, and the methane yield was determined in continuous pilot-scale digestion. Co-digestion of sludge from grease traps and sewage sludge was successfully performed both in laboratory batch and continuous pilot-scale digestion tests. The addition of grease trap sludge to sewage sludge digesters was seen to increase the methane yield of 9-27% when 10-30% of sludge from grease traps (on VS-basis) was added. It was also seen that the grease trap sludge increases the methane yield without increasing the sludge production. Single-substrate digestion of grease trap sludge gave high methane potentials in batch tests, but could not reach stable methane production in continuous digestion. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Waste Management
volume
28
issue
6
pages
986 - 992
publisher
Elsevier
external identifiers
  • wos:000255467600006
  • pmid:18561391
  • scopus:40849124039
ISSN
1879-2456
DOI
10.1016/j.wasman.2007.03.024
language
English
LU publication?
yes
id
10286508-0dde-407d-839f-4f664dd79379 (old id 1168727)
date added to LUP
2009-03-04 11:55:44
date last changed
2017-08-06 04:10:16
@article{10286508-0dde-407d-839f-4f664dd79379,
  abstract     = {Redirection of organic waste, from landfilling or incineration, to biological treatment such as anaerobic digestion is of current interest in the Malmö-Copenhagen region. One type of waste that is expected to be suitable for anaerobic digestion is sludge from grease traps. Separate anaerobic digestion of this waste type and co-digestion with sewage sludge were evaluated. The methane potential was measured in batch laboratory tests, and the methane yield was determined in continuous pilot-scale digestion. Co-digestion of sludge from grease traps and sewage sludge was successfully performed both in laboratory batch and continuous pilot-scale digestion tests. The addition of grease trap sludge to sewage sludge digesters was seen to increase the methane yield of 9-27% when 10-30% of sludge from grease traps (on VS-basis) was added. It was also seen that the grease trap sludge increases the methane yield without increasing the sludge production. Single-substrate digestion of grease trap sludge gave high methane potentials in batch tests, but could not reach stable methane production in continuous digestion.},
  author       = {Davidsson, Åsa and Borell Lövstedt, Charlotta and la Cour Jansen, Jes and Gruvberger, C and Aspegren, H},
  issn         = {1879-2456},
  language     = {eng},
  number       = {6},
  pages        = {986--992},
  publisher    = {Elsevier},
  series       = {Waste Management},
  title        = {Co-digestion of grease trap sludge and sewage sludge.},
  url          = {http://dx.doi.org/10.1016/j.wasman.2007.03.024},
  volume       = {28},
  year         = {2008},
}