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
收藏
页码：144 / 148
页数：5
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