Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 1 de 1
Filter
Add more filters










Database
Language
Publication year range
1.
Bioresour Technol ; 169: 96-102, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25036336

ABSTRACT

In present study, xylanase and laccase were produced in a cost-effective manner up to 10 kg substrate level and evaluated in elemental chlorine free bleaching of Eucalyptus kraft pulp. Compared to the pulp pre-bleached with xylanase (15%) or laccase (25%) individually, the ClO2 savings were higher with sequential treatment of xylanase followed by laccase (35%) at laboratory scale. The sequential enzyme treatment when applied at pilot scale (50 kg pulp), resulted in improved pulp properties (50% reduced post color number, 15.71% increased tear index) and reduced AOX levels (34%) in bleach effluents. The decreased AOX level in effluents will help to meet AOX discharge limits, while improved pulp properties will be value addition to the paper.


Subject(s)
Bleaching Agents/chemistry , Endo-1,4-beta Xylanases/metabolism , Halogens/isolation & purification , Laccase/metabolism , Organic Chemicals/isolation & purification , Paper , Waste Disposal, Fluid , Adsorption , Enzyme Stability , Eucalyptus/chemistry , Optical Phenomena , Pilot Projects
SELECTION OF CITATIONS
SEARCH DETAIL
...