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Comparison of reactor configurations for biogas production from energy crops

Fu, Xinmei LU ; Achu, Nges Ivo LU ; Kreuger, Emma LU and Björnsson, Lovisa LU orcid (2010) Asia-Pacific Power and Energy Engineering Conference, APPEEC 2010 In Asia-Pacific Power and Energy Engineering Conference, APPEEC
Abstract

Biogas production from a mix of easily fermentable and fibrous energy crops was evaluated and compared for two different process types. The processes were a batch two-stage leach bed combined with an upflow anaerobic sludge blanket (UASB) process and a semi-continuous one-stage continuously stirred tank reactor (CSTR) process The specific methane yields after a processing time of 29-30 days were 248 and 370 ml methane g-1 added volatile solids (VSadded) in the leach bed-UASB and the CSTR processes respectively. The average VSremoval rate of the leach bed-UASB system was initially faster, but when that process became limited by solids hydrolysis, the VS-removal rate dropped to less than half the initial rate, and the overall degradation... (More)

Biogas production from a mix of easily fermentable and fibrous energy crops was evaluated and compared for two different process types. The processes were a batch two-stage leach bed combined with an upflow anaerobic sludge blanket (UASB) process and a semi-continuous one-stage continuously stirred tank reactor (CSTR) process The specific methane yields after a processing time of 29-30 days were 248 and 370 ml methane g-1 added volatile solids (VSadded) in the leach bed-UASB and the CSTR processes respectively. The average VSremoval rate of the leach bed-UASB system was initially faster, but when that process became limited by solids hydrolysis, the VS-removal rate dropped to less than half the initial rate, and the overall degradation was slower than for the CSTR. In conclusion, the biogas production was influenced significantly by the reactor configuration, but the effect of crop particle size and the influence of inoculum and microbial adaptation remain to be investigated.

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author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Biogas, Continuously Stirred Tank Reactor (CSTR), Energy crop, Leach bed, Upflow Anaerobic Sludge Blanket (UASB)
host publication
2010 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2010 - Proceedings
series title
Asia-Pacific Power and Energy Engineering Conference, APPEEC
article number
5448770
conference name
Asia-Pacific Power and Energy Engineering Conference, APPEEC 2010
conference location
Chengdu, China
conference dates
2010-03-28 - 2010-03-31
external identifiers
  • scopus:84870020060
ISSN
2157-4839
2157-4847
ISBN
9781424448135
DOI
10.1109/APPEEC.2010.5448770
language
English
LU publication?
yes
id
305e8157-e12a-435f-8e59-18a75dc80d30
date added to LUP
2025-09-10 15:16:11
date last changed
2025-09-24 21:25:06
@inproceedings{305e8157-e12a-435f-8e59-18a75dc80d30,
  abstract     = {{<p>Biogas production from a mix of easily fermentable and fibrous energy crops was evaluated and compared for two different process types. The processes were a batch two-stage leach bed combined with an upflow anaerobic sludge blanket (UASB) process and a semi-continuous one-stage continuously stirred tank reactor (CSTR) process The specific methane yields after a processing time of 29-30 days were 248 and 370 ml methane g-1 added volatile solids (VSadded) in the leach bed-UASB and the CSTR processes respectively. The average VSremoval rate of the leach bed-UASB system was initially faster, but when that process became limited by solids hydrolysis, the VS-removal rate dropped to less than half the initial rate, and the overall degradation was slower than for the CSTR. In conclusion, the biogas production was influenced significantly by the reactor configuration, but the effect of crop particle size and the influence of inoculum and microbial adaptation remain to be investigated.</p>}},
  author       = {{Fu, Xinmei and Achu, Nges Ivo and Kreuger, Emma and Björnsson, Lovisa}},
  booktitle    = {{2010 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2010 - Proceedings}},
  isbn         = {{9781424448135}},
  issn         = {{2157-4839}},
  keywords     = {{Biogas; Continuously Stirred Tank Reactor (CSTR); Energy crop; Leach bed; Upflow Anaerobic Sludge Blanket (UASB)}},
  language     = {{eng}},
  series       = {{Asia-Pacific Power and Energy Engineering Conference, APPEEC}},
  title        = {{Comparison of reactor configurations for biogas production from energy crops}},
  url          = {{http://dx.doi.org/10.1109/APPEEC.2010.5448770}},
  doi          = {{10.1109/APPEEC.2010.5448770}},
  year         = {{2010}},
}