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A Study on the Accumulation Phenomena of Oxidized Starch in White Water of closed Fine Papermaking Process (Part 2) -Effect of broke use ratio and surface sizing pick up-  

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. 35-43 More about this Journal
Abstract
Reduction of fresh water consumption and effluent discharge provide diverse advantages in raw materials and energy savings. Papermaking system closure, however, reduces the efficiency of additives, decreases retention and dewatering, and causes many other Problems in papermaking. Accumulation of inorganic and organic substances in the process white water is the prime cause of these problems. Understanding of the accumulation phenomena of the detrimental substances in the papermaking process is of great importance for papermaking system closure. In this study a process simulation method was employed to analyze the accumulation phenomena of anionic starch in the process white water as the reuse rate of dry broke and pick up of surface sizing agent is increased. Steady state simulation studies were carried out based on the model developed in previous study. The variation of dissolved starch concentration in each process unit was monitored as a function of reuse rate of dry broke and surface sizing agent pick up rate. The result showed that dissolved starch concentration Increased as reuse rate of dry broke and surface sizing agent pick up rate was increased.
Keywords
process simulation; closure; dry broke; surface sizing; oxidized starch;
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
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