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A Study on the Accumulation Phenomena of Oxidized Starch in White Water in Closed Fine Papermaking Process (Part 1) -Effect of Papermaking system closure-  

Ahn, Hyun-Kyun (서울대학교 농업생명과학대학 임산공학과)
Lee, Hak-Lae (서울대학교 농업생명과학대학 임산공학과)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.36, no.3, 2004 , pp. 15-34 More about this Journal
Abstract
Diverse benefits such as reduction of fresh water consumption and effluent discharge, efficient use of raw materials and energy savings can be obtained by papermaking system closure. Closure of papermaking processes, however, causes many problems including reduction of the efficiency of additives, decrease of retention and dewatering, felt plugging, poor Paper quality, generation of slime and odor, poor vacuum efficiency, etc, and it has been recognized that accumulation of Inorganic and organic substances in the process white water is the prime cause of these problems. Therefore, technological developments for preventing accumulation of these detrimental substances are urgently required for Implementing papermaking system closure. Understanding of the accumulation phenomena of the inorganic and organic substances in the papermaking process white water is prerequisite for papermaking system closure. In this study a process simulation method was used to analyze the accumulation phenomena of anionic starch In the process white water as the closure level of a fine paper making process is increased. A pilot paper machine was used as a model process. Starch adsorption and desorption models were developed based on the concept of starch adsorption ratio, which was not considered in previous studies. Steady state simulation studies were carried out based on this model using a commercial simulator. In steady state simulation, the variation of dissolved starch concentration in each process unit was monitored as a function of white water usage for wire shower. The result of the steady state simulation showed that dissolved starch concentration and its increase ratio in Process units increased as white water usage ratio for wire shower increased.
Keywords
process simulation; closure; starch adsorption; anionic starch;
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1 Lindstrom, T., Soremark, C., Heinegard, C. and Martin-Lof, S.: The importance of electrokinetic properties of wood fiber for papermaking. Tappi J. 57(12): 94-96 (1974)
2 Allen, L., Polverrari, M., Levesque, B. and Francis, W.: Effects of system closure on retention- and drain-age-aid performance in TMP newsprint manufacture. Tappi J. 82(4): 188-195 (1999)
3 W$\aa$gberg, L. and $\AA$sell, I.: The action ofcationic poly-mers in the fixation of dissolved and colloidal sub-stances Part2. Colloids and Surfaces A : Physicochemical and Engineering Aspects. 104:169-184(1995)   DOI
4 Marton. J.: The role of surface chemistry in fines-cati-onic starch interactions. Tappi J. 63(4): 87-91
5 Lyman, C.A. and Raymond, L.J.: White water reuse on a fine paper machine. Tappi J. 56(3): 92-96 (1973)
6 Glittenberg, D. and Becker, A.: Cationic starches for surface sizing: The better solution. Paperi Ja Puu-Paper and Timber. 79(4): 240-243 (1997)
7 Linhart, F., Auhorn, W.J., Degen, H.J. and Lorz, R.: 'Anionic trash': controlling detrimental substances. Tappi J. 70(10): pp79-85 (1987).
8 Alexander, S.D. and Dobbins, R.D.: The buildup of dissolved electrolytes in a closed paper mill system Tappi J. 60(12): 117-120 (1977)
9 Orccotoma, J.A., Paris, J. and Perrier, M.: Dynamic analysis of fibrous material and dissolved solids dis-thbution in the wet-end of a newsprint mill. Appita J. 52(2): 105-113(1999)
10 Miyanishi, T., lida, K. and Iwatsu, T.: Dynamic simu-lation for efficient paper machine grade change. Tappi J. 71(1): 49-56 (1988)
11 Orccotoma, J.A., Paris, J. and Perrier, M.: Dynamics of fines distribution in a white-water network. Pulp and Paper Canada. 98(9): 77-80 (1997)
12 Zhang, X., Beatson, R.P., Cai, Y.J. and Saddler, J.N.: Accumulation of specific dissolved and colloidal sub-stances during white water recycling affects paper properties. J. Pulp & Paper sci. 25(6): 206-210 (1999)
13 Graff. S.: Analysis de la distribution de mati$\acute{e}$re dans la partie humide d'une machine $\acute{a}$ papier, M.Sc.A. the-sis, $\acute{E}$cole Polytechnique, Montrea1(1998)
14 Alexander, S.D. and Dobbins, R.D.: The physical and optical properties of paper made at high salt concentrations. Tappi J. 60(12): 121-124 (1977)
15 Webb, L. J. : Water and wet-end chemistry. Paper technology, 33(6): 30-35 (1991)
16 Luukkonen, K., Malmstrom, O. and Zetter, C.: New and innovative sizing strategies for the sizing of PCC containing fine paper. 1995 Papermakers Conference Proceedings, TAPPI Press, pp. 435-443