The effects of recovering fibre and fine materials on sludge dewatering properties at a deinked pulp mill

L. Mäkinen, A. Ämmälä, M. Körkkö and J. Niinimäki

Resources, Conservation & Recycling, 2013, vol. 73, issue C, 11-16

Abstract: The manufacture of deinked pulp generates large amounts of waste for disposal. The yield loss in the production of recycled paper can be up to 25%. The use of landfills for waste disposal is very expensive and will be prohibited in Europe in the next few years. Thus, there is a great pressure to improve the material efficiency and to reduce the amount of waste that is produced at deinked pulp mills. However, the issue is complex because an improvement of the material efficiency at one process unit may deteriorate the performance of other stages. For example, the attempts to increase the fibre yield in the deinking processes can lead to poor sludge dewatering properties, resulting in that there are no added advantages for the mill anymore.

Keywords: Deinking; Dewatering; Fibre; Reject; Sludge; Recovery (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:recore:v:73:y:2013:i:c:p:11-16

DOI: 10.1016/j.resconrec.2013.01.011

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