Rapid and accurate determination of VFAs and ethanol in the effluent of an anaerobic H-2-producing bioreactor using near-infrared spectroscopy

Zhang, Meng-Lin, Sheng, Guo-Ping, Mu, Yang, Li, Wei-Hua, Yu, Han-Qing, Harada, Hideki and Li, Yu-You (2009) Rapid and accurate determination of VFAs and ethanol in the effluent of an anaerobic H-2-producing bioreactor using near-infrared spectroscopy. Water Research, 43 7: 1823-1830. doi:10.1016/j.watres.2009.01.018


Author Zhang, Meng-Lin
Sheng, Guo-Ping
Mu, Yang
Li, Wei-Hua
Yu, Han-Qing
Harada, Hideki
Li, Yu-You
Title Rapid and accurate determination of VFAs and ethanol in the effluent of an anaerobic H-2-producing bioreactor using near-infrared spectroscopy
Journal name Water Research   Check publisher's open access policy
ISSN 0043-1354
Publication date 2009-04-01
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.watres.2009.01.018
Open Access Status
Volume 43
Issue 7
Start page 1823
End page 1830
Total pages 8
Editor David Dixon
Jean-Claude Block
Mogens Henze
Place of publication United Kingdom
Publisher Pergamon
Language eng
Subject C1
Abstract A rapid quantification method, based on Fourier transform near-infrared (FT-NIR) spectroscopy, was developed and validated to nondestructively quantify the concentrations of volatile fatty acids and ethanol in the effluent of an anaerobic H2-producing bioreactor. The first-derivative spectra calculated by a simple numerical difference, combined with the orthogonal signal correction method, were used as spectral preprocessing options. A calibration model was established and validated using gas chromatography measurement results. The number of internal latent variables was optimized based on the lowest root-mean-square error of calibration. The calibration model established shows the satisfactory results for the lowest root-mean-square errors of prediction compared to other preprocess methods. The method developed in this work is demonstrated to be more flexible compared with other approaches to determine the concentrations of volatile fatty acids and ethanol in the anaerobic reactor effluents.
Keyword Anaerobic fermentation
ORTHOGONAL SIGNAL CORRECTION
Anaerobic fermentation
Multivariate analysis
Ethanol
FT-NIR spectroscopy
H2 production
Volatile fatty acid (VFA)
Bioreactor
Q-Index Code C1
Q-Index Status Confirmed Code
Additional Notes Online 31/1/09

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
Advanced Water Management Centre Publications
 
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Created: Thu, 03 Sep 2009, 18:12:13 EST by Mr Andrew Martlew on behalf of Advanced Water Management Centre