XYLANASE BLEACHING OF EUCALYPTUS KRAFT PULP AN ECONOMICAL ECF PROCESS

Authors
VIDAL T TORRES AL COLOM JF SILES J
Citation
T. Vidal et al., XYLANASE BLEACHING OF EUCALYPTUS KRAFT PULP AN ECONOMICAL ECF PROCESS, Appita journal, 50(2), 1997, pp. 144-148
Citations number
12
Categorie Soggetti
Materials Science, Paper & Wood
Journal title
Appita journal → ACNP
ISSN journal
10386807
Volume
50
Issue
2
Year of publication
1997
Pages
144 - 148
Database
ISI
SICI code
1038-6807(1997)50:2<144:XBOEKP>2.0.ZU;2-I
Abstract
The use of xylanase in eucalypt kraft pulp bleaching improves bleachab ility in subsequent stages. Sequences ODPD and XODPD were compared. At the same final brightness of 88% ISO enzyme treatment pulp can save 3 4% 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 hydrolys is of hemicelluloses.