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dc.contributor.authorIhunegbo, Felicia Nkem
dc.contributor.authorMadsen, Michael
dc.contributor.authorEsbensen, Kim H.
dc.contributor.authorHolm-Nielsen, Jens Bo
dc.contributor.authorHalstensen, Maths
dc.date.accessioned2013-04-12T06:59:08Z
dc.date.accessioned2017-04-19T12:49:54Z
dc.date.available2013-04-12T06:59:08Z
dc.date.available2017-04-19T12:49:54Z
dc.date.issued2012
dc.identifier.citationIhunegbo, F.N., Madsen, M., Esbensen, K.H., Holm-Nielsen, J.B. & Halstensen, M. Acoustic chemometric prediction of total solids in bioslurry: A full-scale feasibility study for on-line biogas process monitoring. Chemometrics and Intelligent Laboratory Systems. 2012, 110(1), p. 135-143
dc.identifier.issn0169-7439
dc.identifier.urihttp://hdl.handle.net/11250/2438423
dc.description.abstractDry matter is an important process control parameter in the bioconversion application field. Acoustic chemometrics, as a Process Analytical Technology (PAT) modality for quantitative characterisation of dry matter in complex bioslurry systems (biogas fermentation), has not been successful despite several earlier dedicated attempts. A full-scale feasibility study based on standard addition experiments involving natural plant biomass was conducted using multivariate calibration (Partial Least Squares Regression, PLS-R) of acoustic signatures against dry matter content (total solids, TS). Prediction performance of the optimised process implementation was evaluated using independent test set validation, with estimates of accuracy (slope of predicted vs. reference values) and precision (squared correlation coefficient, r2) of 0.94 and 0.97 respectively, with RMSEP of 0.32 % w/w (RMSEPrel = 3.86 %) in the range of 5.8 – 10.8 % w/w dry matter. Based on these excellent prediction performance measures, it is concluded that acoustic chemometrics has come of age as a full grown PAT approach for on-line monitoring of dry matter (TS) in complex bioslurry, with a promising application potential in other biomass processing industries as well.
dc.language.isoeng
dc.subjectacoustic chemometrics
dc.subjectpartial least squares regression (PLS-R)
dc.subjectTotal Solids (TS)
dc.subjectbioslurry
dc.subjecton-line monitoring
dc.subjectProcess Analytical Technology (PAT)
dc.titleAcoustic chemometric prediction of total solids in bioslurry: A full-scale feasibility study for on-line biogas process monitoring
dc.typeJournal article
dc.typePeer reviewed
dc.description.versionAccepted version
dc.rights.holder© Copyright Elsevier. All rights reserved
dc.subject.nsi562
dc.identifier.doihttp://dx.doi.org/10.1016/j.chemolab.2011.10.009


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