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Evaluation of new methods for the monitoring of alkalinity dissolved hydrogen and the microbial community in anaerobic digestion

Björnsson, Lovisa LU ; Murto, Marika LU ; Jantsch, Tor Gunnar LU and Mattiasson, Bo LU (2001) In Water Research 35(12). p.2833-2840
Abstract
New methods for spectrophotometric alkalinity measurement, dissolved hydrogen monitoring and for obtaining a fingerprint of the microbial community were evaluated as tools for process monitoring in anaerobic digestion. The anaerobic digestion process was operated at organic loading rates of 1.5, 3.0 and 4.5g volatile solids l-1d-1 and subjected to pulse loads of carbohydrate, lipid, protein and a mixed sludge substrate. The spectrophotometric alkalinity monitoring method showed good agreement with traditional titrimetric alkalinity monitoring and has the advantage of being easy to modify to on-line monitoring applications. The on-line monitoring of dissolved hydrogen gave valuable information about approaching process overload and can be a... (More)
New methods for spectrophotometric alkalinity measurement, dissolved hydrogen monitoring and for obtaining a fingerprint of the microbial community were evaluated as tools for process monitoring in anaerobic digestion. The anaerobic digestion process was operated at organic loading rates of 1.5, 3.0 and 4.5g volatile solids l-1d-1 and subjected to pulse loads of carbohydrate, lipid, protein and a mixed sludge substrate. The spectrophotometric alkalinity monitoring method showed good agreement with traditional titrimetric alkalinity monitoring and has the advantage of being easy to modify to on-line monitoring applications. The on-line monitoring of dissolved hydrogen gave valuable information about approaching process overload and can be a good complement to the conventional monitoring of volatile fatty acids. Changing process conditions were also reflected in the microbial fingerprint that could be achieved by partitioning in two-phase systems. The investigated methods showed potential for application in increasing our understanding of the anaerobic digestion process as well as for being applicable for monitoring in the complex environment of full-scale anaerobic digestion processes. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
anaerobic digestion, monitoring, dissolved hydrogen, Pd-MOS, alkalinity, CCD
in
Water Research
volume
35
issue
12
pages
2833 - 2840
publisher
Elsevier
external identifiers
  • scopus:0034974913
ISSN
1879-2448
DOI
10.1016/S0043-1354(00)00585-6
language
English
LU publication?
yes
id
17e71687-86c0-4ac2-9da1-68ef7526ee46 (old id 789437)
date added to LUP
2007-12-21 09:55:09
date last changed
2018-02-18 04:25:33
@article{17e71687-86c0-4ac2-9da1-68ef7526ee46,
  abstract     = {New methods for spectrophotometric alkalinity measurement, dissolved hydrogen monitoring and for obtaining a fingerprint of the microbial community were evaluated as tools for process monitoring in anaerobic digestion. The anaerobic digestion process was operated at organic loading rates of 1.5, 3.0 and 4.5g volatile solids l-1d-1 and subjected to pulse loads of carbohydrate, lipid, protein and a mixed sludge substrate. The spectrophotometric alkalinity monitoring method showed good agreement with traditional titrimetric alkalinity monitoring and has the advantage of being easy to modify to on-line monitoring applications. The on-line monitoring of dissolved hydrogen gave valuable information about approaching process overload and can be a good complement to the conventional monitoring of volatile fatty acids. Changing process conditions were also reflected in the microbial fingerprint that could be achieved by partitioning in two-phase systems. The investigated methods showed potential for application in increasing our understanding of the anaerobic digestion process as well as for being applicable for monitoring in the complex environment of full-scale anaerobic digestion processes.},
  author       = {Björnsson, Lovisa and Murto, Marika and Jantsch, Tor Gunnar and Mattiasson, Bo},
  issn         = {1879-2448},
  keyword      = {anaerobic digestion,monitoring,dissolved hydrogen,Pd-MOS,alkalinity,CCD},
  language     = {eng},
  number       = {12},
  pages        = {2833--2840},
  publisher    = {Elsevier},
  series       = {Water Research},
  title        = {Evaluation of new methods for the monitoring of alkalinity dissolved hydrogen and the microbial community in anaerobic digestion},
  url          = {http://dx.doi.org/10.1016/S0043-1354(00)00585-6},
  volume       = {35},
  year         = {2001},
}