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Removal of dissolved and colloidal material
After reading this article you will..
- know how the removal of dissolved and colloidal material effects recycled pulp quality.
Recycled fibre
- Legislation
- Sources and quality of paper for recycling
- Recyclability of paper and board products – Deinkability
- Recycling versus recyclability
- Technical aspects of recycling
- Relevance of recyclability
- Repulpability and deinkability
- Deinkability test methods
- EPRC deinkability assessment
- Deinkability of different printed products
- Removability of adhesive applications
- EPRC assessment on removability of adhesive applications in graphic paper products
- Unit operations and equipment in recycled fibre processing
- Design of processes
- Design principles for stock preparation processes
- Process design for graphical grades, news print
- Process design for tissue
- Process design for board and packaging grades
- Reject and Sludge handling for graphical and tissue applications
- Reject and Sludge handling for board and packaging applications
- Water management
- Additives
- Deinking
- Bleaching of deinked pulp
- Process water treatment
- Sticky control – detackification
- Enzymatic solution for recycled fibres
- Papermaking potential of recycled fibre
- Differences between virgin and recycled fibre
- Repeated (manifold) recycling experiments
- Multiple papermaking with recycled fibres
- Modelling of fibre age distribution
- Special request of recycled fibre furnish in papermaking
- Effects of recycled fibre in papermaking
- Challenges of increased recycled fibre utilisation
Authors & references
Author:
Hans Putz
References:
- Roring, A. and Wackenberg, E., Characterization of deinking white water: influence on flotation and bleaching efficiency: Water’s components affect both flotation and bleaching. Pulp Paper Can. 98(1997) No. 5, p. 17–21
- Eisenschmid, K. and Eckhart, H., Reinigung von Kreislaufwässern – Voraussetzung für den Einsatz deinkter AP-Stoffe in höherwertigen graphischen Papieren. Teil 1: Einsatz von Altpapier. Wochenbl. Papierfabr. 124(1996) No. 7, p. 265–271
- Stetter, A. and Eisenschmid, K., Maßnahmen zur Entlastung des AP-Kreislaufes. Wochenbl. Papierfabr. 125(1997) No. 5, p. 186–191
- Upton, B.H., Krishnagopalan, G. and Abubakr, S., Deinking flexographic newsprint: using ultrafiltration to close the water loop. Tappi J. 80(1997) No. 2, p. 155–169
- Diedrich, K., Hamm, U. and Knelissen, H.J., Biologische Kreislaufwasserbehandlung in einer Papierfabrik mit geschlossenem Wasserkreislauf. Das Papier 51(1997) No. 6A, p. V153–159
- Habets, L.H.A., Hooimeijer, A. and Knelissen, H.J., In-line biological process water treatment for zero discharge operation at recycled fibre board mills. Pulp Paper Canada 98(1997) No. 12, p. T504–T507
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This page has been updated 16.11.2021