Xylanase bleaching of eucalyptus kraft pulp an economical ECF process

被引：0
|
作者：
Vidal, T
Torres, AL
Colom, JF
Siles, J
机构：
来源：
APPITA JOURNAL | 1997年 / 50卷 / 02期
关键词：
bleaching; kraft pulp; Eucalyptus globulus; xylanase; chlorine dioxide; hydrogen peroxide; brightness; viscosity; Kappa number; physical properties; GOD; colour;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
The use of xylanase in eucalypt kraft pulp bleaching improves bleachability in subsequent stages. Sequences ODPD and XODPD were compared. At the same final brightness of 88% ISO enzyme treatment pulp can save 34% in chlorine dioxide or 47% in hydrogen peroxide consumption. Other optical and physical properties are similar for both sequences. Enzyme treatment produces an increase of COD in effluent due to the hydrolysis of hemicelluloses.
引用
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页码：144 / 148
页数：5
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