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

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

DOI

10.1016/j.cej.2016.06.107

Citation

Mäkelä, M, Geladi, P, Grimm, A, Dahl, O, Pietiläinen, A & Larsson, S H 2016, ' Cyclone processing of green liquor dregs (GLD) with results measured and interpreted by ICP-OES and NIR spectroscopy ', Chemical Engineering Journal, vol. 304, pp. 448-453 . https://doi.org/10.1016/j.cej.2016.06.107

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-201705114161

Collections

[article-cris] Kemian tekniikan korkeakoulu / CHEM

Show all metadata

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

Access rights

URL

Journal Title

Journal ISSN

Volume Title

Authors

Date

Department

Major/Subject

Mcode

Degree programme

Language

Pages

Series

Abstract

Description

Keywords

Other note

DOI

Citation

Permanent link to this item

Collections