Cyclone processing of green liquor dregs (GLD) with results measured and interpreted by ICP-OES and NIR spectroscopy

Mikko Mäkelä; Paul Geladi; Alejandro Grimm; Olli Dahl; Antti Pietiläinen; Sylvia H. Larsson

doi:10.1016/j.cej.2016.06.107

Cyclone processing of green liquor dregs (GLD) with results measured and interpreted by ICP-OES and NIR spectroscopy

Mikko Mäkelä, Paul Geladi, Alejandro Grimm, Olli Dahl, Antti Pietiläinen, Sylvia H. Larsson^*

^*Corresponding author for this work

Department of Bioproducts and Biosystems

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

An experimental design in cyclone drying parameters for green liquor sludge led to an efficient drying of the material and an interpretation of optimal cyclone parameters. The obtained dried materials were analyzed by ICP-OES and NIR spectroscopy. The inorganic analysis showed that a partial separation of toxic chemicals is possible and the NIR results could be used as an extra way of interpreting the results of the experimental design. The conclusion is that besides drying, also a change in chemical composition occurs as an effect of cyclone treatment. The NIR method is fast and requires little sample preparation while the ICP-OES method gives more direct inorganic results but is more demanding in time for sample handling and measurement.

Original language	English
Pages (from-to)	448-453
Number of pages	6
Journal	Chemical Engineering Journal
Volume	304
DOIs	https://doi.org/10.1016/j.cej.2016.06.107
Publication status	Published - 15 Nov 2016
MoE publication type	A1 Journal article-refereed

Keywords

Cyclone drying
Experimental design
Green liquor
Multivariate interpretation
Separation of toxic metals
Sludge

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.cej.2016.06.107Licence: CC BY

Makela-et al-2016-Cyclone processingFinal published version, 944 KBLicence: CC BY

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title = "Cyclone processing of green liquor dregs (GLD) with results measured and interpreted by ICP-OES and NIR spectroscopy",

abstract = "An experimental design in cyclone drying parameters for green liquor sludge led to an efficient drying of the material and an interpretation of optimal cyclone parameters. The obtained dried materials were analyzed by ICP-OES and NIR spectroscopy. The inorganic analysis showed that a partial separation of toxic chemicals is possible and the NIR results could be used as an extra way of interpreting the results of the experimental design. The conclusion is that besides drying, also a change in chemical composition occurs as an effect of cyclone treatment. The NIR method is fast and requires little sample preparation while the ICP-OES method gives more direct inorganic results but is more demanding in time for sample handling and measurement.",

keywords = "Cyclone drying, Experimental design, Green liquor, Multivariate interpretation, Separation of toxic metals, Sludge",

author = "Mikko M{\"a}kel{\"a} and Paul Geladi and Alejandro Grimm and Olli Dahl and Antti Pietil{\"a}inen and Larsson, {Sylvia H.}",

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doi = "10.1016/j.cej.2016.06.107",

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T1 - Cyclone processing of green liquor dregs (GLD) with results measured and interpreted by ICP-OES and NIR spectroscopy

AU - Mäkelä, Mikko

AU - Geladi, Paul

AU - Grimm, Alejandro

AU - Dahl, Olli

AU - Pietiläinen, Antti

AU - Larsson, Sylvia H.

PY - 2016/11/15

Y1 - 2016/11/15

N2 - An experimental design in cyclone drying parameters for green liquor sludge led to an efficient drying of the material and an interpretation of optimal cyclone parameters. The obtained dried materials were analyzed by ICP-OES and NIR spectroscopy. The inorganic analysis showed that a partial separation of toxic chemicals is possible and the NIR results could be used as an extra way of interpreting the results of the experimental design. The conclusion is that besides drying, also a change in chemical composition occurs as an effect of cyclone treatment. The NIR method is fast and requires little sample preparation while the ICP-OES method gives more direct inorganic results but is more demanding in time for sample handling and measurement.

AB - An experimental design in cyclone drying parameters for green liquor sludge led to an efficient drying of the material and an interpretation of optimal cyclone parameters. The obtained dried materials were analyzed by ICP-OES and NIR spectroscopy. The inorganic analysis showed that a partial separation of toxic chemicals is possible and the NIR results could be used as an extra way of interpreting the results of the experimental design. The conclusion is that besides drying, also a change in chemical composition occurs as an effect of cyclone treatment. The NIR method is fast and requires little sample preparation while the ICP-OES method gives more direct inorganic results but is more demanding in time for sample handling and measurement.

KW - Cyclone drying

KW - Experimental design

KW - Green liquor

KW - Multivariate interpretation

KW - Separation of toxic metals

KW - Sludge

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DO - 10.1016/j.cej.2016.06.107

M3 - Article

AN - SCOPUS:84977139810

SN - 1385-8947

VL - 304

SP - 448

EP - 453

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

Cyclone processing of green liquor dregs (GLD) with results measured and interpreted by ICP-OES and NIR spectroscopy

Abstract

Keywords

UN SDGs

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