Multi-wavelength fluorometry for anaerobic digestion process monitoring

Download
  1. Get@NRC: Multi-wavelength fluorometry for anaerobic digestion process monitoring (Opens in a new window)
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleWater Science and Technology
Volume52
Issue1-2
Pages465471; # of pages: 7
Subjectenv; instrumentation
AbstractApplicability of multi-wavelength fluorometry for anaerobic digestion process monitoring was investigated in a 3.5 L upflow anaerobic sludge bed (UASB) lab-scale reactor. Both off-line and on-line monitoring of key process parameters was tested. Off-line emission spectra were measured at an angle of 90� to the excitation beam using a cuvette. On-line measurements were carried out using a fiber optic probe in the external recirculation line of the digester. Fluorescence spectra were correlated to available analytical measurements to obtain partial least square regression models. An independent set of measurements was used to validate the regression models. Model estimations showed reasonable agreement with analytical measurements with multiple determination coefficients (R2) between 0.6 and 0.95. Results showed that off-line fluorescence measurements can be used for fast estimation of anaerobic digestor effluent quality. At the same time, the on-line implementation of multi-wavelength fluorescence measurements can be used for real-time process monitoring and, potentially, for on-line process control. Keywords Multi-wavelength fluorometry; process monitoring; partial least square regression; anaerobic digestion
Publication date
AffiliationNRC Biotechnology Research Institute; National Research Council Canada
Peer reviewedNo
NRC number47231
NPARC number3538618
Export citationExport as RIS
Report a correctionReport a correction
Record identifierd9f95a35-4527-482b-b214-5f51157993bd
Record created2009-03-01
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)