Abstract
In Kraft pulping, about 90–95 % of wood lignin gets solubilized during the cooking process. The remaining 5–10 % of lignin is responsible for the brown color of the Kraft pulp and unbleached paper. The objective of bleaching is to remove the residual lignin from the pulp as selectively as possible, without degrading the pulp carbohydrate, especially cellulose, which would lead to a decrease in strength of the pulp.
Some excerpts taken from Bajpai (2012). Biotechnology for Pulp and Paper Processing with kind permission from Springer Science+Business Media.
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References
Axegard P, Berry RM, Gellerstedt G, Lindblad PO, Luthie CE, Popke I, Voss RH, Wrist PE (1993) The effects of recent changes in bleached softwood Kraft mill technology on organochlorine emissions: an international perspective. Bleaching (Jameel H ed) Tappi Press, Atlanta Georgia, vol 2, pp 759–770
Bajpai P (2012) Biotechnology for pulp and paper processing. Springer Science+Business Media, New York, p 414
Gergov M, Priha M, Talka E, Valtilla O, Kangas A, Kukkonen K (1988) Chlorinated organic compounds in effluent treatment at Kraft mills. Tappi J 71(12):175–184
Gierer J (1990) Basic principles of bleaching. 1. Cationic and radical processes. Holzforschung 44(5):387–394
Lachenal D, Nguyen-Thi NB (1993) Rationalization of chlorine-free bleaching. In: Proceedings 7th international symposium on wood and pulping chem. Beijing, PR China, vol 1, p 166
Liebergott N, van Lierop B, Kovacs T, Nolin A (1990) Comparison of the order of addition of chlorine and chlorine dioxide in the chlorination stage. Tappi J 73:207–213
Lindstrom K, Mohamed M (1988) Selective removal of chlorinated organics from Kraft mill effluents in aerated lagoons. Nordic Pulp and Paper Res J 3:26–33
McDonough TJ (1995) Recent advances in bleached chemical pulp manufacturing technology: part 1. Tappi J 78(3):55–62
Mckague AB, Carlberg G (1996) Pulp bleaching and the environment. In: Dence CW, Reeve DW (eds) Pulp bleaching: principles and practice. Tappi Press, Atlanta, Ga, pp 746–820
Rapson WH, Strumila GB (1979) The bleaching of pulp. In: Singh RP (ed) Chlorine dioxide bleaching, 3rd edn, Tappi Press, Chapter 6, p 113
Reeve DW (1996a) Introduction to the principles and practice of pulp bleaching. In: Dence CW, Reeve DW (eds) Pulp bleaching: principles and practice. Tappi Press, Atlanta, p 1, Section 1, Chapter 1
Reeve DW (1996b) Pulp bleaching: principles and practice. In: Dence CW, Reeve DW (eds) Chlorine dioxide in bleaching stages. Tappi Press, Atlanta, Section 4, Chapter 8, p 379
Springer AM (1993) Overview of water pollutants and their impact: pulp and paper industry. In: Springer AM (ed) Industrial environmental control: pulp and paper industry. Tappi Press. Atlanta, Ga., U.S.A., pp 7–34
Voelker MH (1979) The bleaching of pulp, 3rd edn. In: Singh RP (ed) Tappi Press, Atlanta, Ga, p 337
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Bajpai, P. (2013). Pulp Bleaching and Bleaching Effluents . In: Bleach Plant Effluents from the Pulp and Paper Industry. SpringerBriefs in Applied Sciences and Technology. Springer, Heidelberg. https://doi.org/10.1007/978-3-319-00545-4_3
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DOI: https://doi.org/10.1007/978-3-319-00545-4_3
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