On-Line Measurement of the Chemical Oxygen Demand in Wastewater in a Pulp and Paper Mill Using Near Infrared Spectroscopy

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dc.contributor.authorDahlbacka, John
dc.contributor.authorNyström, Josefina
dc.contributor.authorMossing, Torgny
dc.contributor.authorGeladi, Paul
dc.contributor.authorLillhonga, Tom
dc.date.accessioned2018-07-13T06:06:08Z
dc.date.available2018-07-13T06:06:08Z
dc.date.issued2014-10
dc.description.abstractAlthough near infrared (NIR) spectroscopy has been evaluated for numerous applications, the number of actual on-line or even on-site industrial applications seems to be very limited. In the present paper, the attempts to produce on-line predictions of the chemical oxygen demand (COD) in wastewater from a pulp and paper mill using NIR spectroscopy are described. The task was perceived as very challenging, but with a root mean square error of prediction of 149 mg/l, roughly corresponding to 1/10 of the studied concentration interval, this attempt was deemed as successful. This result was obtained by using partial least squares model regression, interpolated reference values for calibration purposes, and by evenly distributing the calibration data in the concentration space. This work may also represent the first industrial application of on-line COD measurements in wastewater using NIR spectroscopy.en_US
dc.identifier.citationSpectral Analysis Reviews, 2014, 2, 19-25en_US
dc.identifier.issn2331-2106
dc.identifier.urihttp://dx.doi.org/10.4236/sar.2014.24025
dc.identifier.urihttp://hdl.handle.net/123456789/1881
dc.language.isoenen_US
dc.publisherScientific Researchen_US
dc.subjectChemical Oxygen Demand (COD)en_US
dc.subjectIndustrial Wastewateren_US
dc.subjectNear Infrared Spectroscopy (NIR)en_US
dc.subjectMultivariate Calibrationen_US
dc.subjectOn-Line Measurementen_US
dc.titleOn-Line Measurement of the Chemical Oxygen Demand in Wastewater in a Pulp and Paper Mill Using Near Infrared Spectroscopyen_US
dc.typeArticleen_US
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