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Cellulase deinking of fresh and aged recycled newsprint/magazines (ONP/OMG)

Paper ID Volume ID Publish Year Pages File Format Full-Text
17729 42692 2008 6 PDF Available
Title
Cellulase deinking of fresh and aged recycled newsprint/magazines (ONP/OMG)
Abstract

Three commercial cellulases were evaluated for their effects on deinking of both fresh and artificially aged old newsprint (ONP) mixed with fresh old magazines (OMG) at a ratio of 7:3. The enzymes were added at the beginning of the repulping stage followed by incubation for up to 3 h. Although these enzymes were able to detach a significant amount of ink from the ONP/OMG, cellulase deinking was less efficient than either sulphite or alkaline deinking chemistry. None of the three cellulase enzymes tested were able to deink aged ONP/OMG, and a poor deinkability was also observed by using either sulphite or alkaline chemistry. However, combining enzymes with sulphite chemistry significantly enhanced sulphite deinking and provided a potential strategy to achieve effective deinking of aged newsprint at neutral pH.

Keywords
Cellulase; Deinking; Repulping; Recycling; Old newspapers
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Cellulase deinking of fresh and aged recycled newsprint/magazines (ONP/OMG)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 43, Issue 2, 5 August 2008, Pages 103–108
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us