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Increasing cake solids of cellulosic sludge through enzyme-assisted dewatering

Paper ID Volume ID Publish Year Pages File Format Full-Text
35397 45088 2011 5 PDF Available
Title
Increasing cake solids of cellulosic sludge through enzyme-assisted dewatering
Abstract

Brief treatment of wood pulp fibers or cellulosic sludge with cellulase enzymes ruptures the fibers at the kinked regions. Dewatering these fibers with a belt press simulator leads to higher cake solids because of better cake consolidation with the shorter fibers. The void volume of the cake is reduced. A three to six percentage point increase in cake solids is obtained depending upon the enzyme dose applied, the nature of the sludge used, and the exposure period. Examples are provided with both hardwood and softwood fiber and with primary sludge from several paper mills. The economics are attractive and are likely to become increasingly more so as enzyme prices continue to drop and the cost of landfilling rises.

Keywords
Cellulase; Sludge; Dewatering; Cellulose; Fines; Fiber
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Increasing cake solids of cellulosic sludge through enzyme-assisted dewatering
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 46, Issue 1, January 2011, Pages 353–357
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