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On-Site Recovery of Hemicelluloses from Thermomechanical Pulp Mill Process Water by Microfiltration and Ultrafiltration

Journal of wood chemistry and technology, 2019-05, Vol.39 (3), p.214-223 [Peer Reviewed Journal]

Published with license by Taylor & Francis Group, LLC © 2019 Johan Thuvander, Frank Lipnizki and Ann-Sofi Jönsson. 2019 ;ISSN: 0277-3813 ;EISSN: 1532-2319 ;DOI: 10.1080/02773813.2019.1565865

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Title:
On-Site Recovery of Hemicelluloses from Thermomechanical Pulp Mill Process Water by Microfiltration and Ultrafiltration
Author: Thuvander, Johan ; Lipnizki, Frank ; Jönsson, Ann-Sofi
Subjects: Chemical Engineering ; Chemical Process Engineering ; Civil Engineering ; Engineering and Technology ; galactoglucomannan ; hemicelluloses ; Kemiska processer ; Kemiteknik ; Microfiltration ; Samhällsbyggnadsteknik ; Teknik ; thermomechanical pulp ; ultrafiltration ; Vattenteknik ; Water Engineering
Is Part Of: Journal of wood chemistry and technology, 2019-05, Vol.39 (3), p.214-223
Description: During mechanical defibration of wood, a minor fraction of the wood mass is dissolved in the process water. These dissolved substances represent an extra energy demand when they are treated in the mill's wastewater treatment plant. Galactoglucomannan, the main hemicellulose in spruce, can be recovered from thermomechanical pulp mill process water by a process based on microfiltration (MF) and ultrafiltration (UF). The purpose of this work was to study the scale-up of the process from laboratory scale to continuous industrial scale. MF was first studied in the laboratory, and then combined with UF in a continuous pilot process on-site at a pulp mill. The data obtained were used to estimate the cost of the membrane processes for galactoglucomannan recovery which was found to be about €1160 per ton hemicelluloses.
Publisher: Taylor & Francis
Language: English
Identifier: ISSN: 0277-3813
EISSN: 1532-2319
DOI: 10.1080/02773813.2019.1565865
Source: SWEPUB Freely available online

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On-Site Recovery of Hemicelluloses from Thermomechanical Pulp Mill Process Water by Microfiltration and Ultrafiltration

Published with license by Taylor & Francis Group, LLC © 2019 Johan Thuvander, Frank Lipnizki and Ann-Sofi Jönsson. 2019 ;ISSN: 0277-3813 ;EISSN: 1532-2319 ;DOI: 10.1080/02773813.2019.1565865

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