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Title: Fermentation and chemical treatment of pulp and paper mill sludge

Patent ·
OSTI ID:1164689
; ;

A method of chemically treating partially de-ashed pulp and/or paper mill sludge to obtain products of value comprising taking a sample of primary sludge from a Kraft paper mill process, partially de-ashing the primary sludge by physical means, and further treating the primary sludge to obtain the products of value, including further treating the resulting sludge and using the resulting sludge as a substrate to produce cellulase in an efficient manner using the resulting sludge as the only carbon source and mixtures of inorganic salts as the primary nitrogen source, and including further treating the resulting sludge and using the resulting sludge to produce ethanol.

Research Organization:
Auburn Univ., AL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG36-07G07G01702
Assignee:
Auburn University (Auburn, AL)
Patent Number(s):
8,900,457
Application Number:
13/391,549
OSTI ID:
1164689
Resource Relation:
Patent File Date: 2011 Feb 24
Country of Publication:
United States
Language:
English

References (8)

Disposal of paper pulp mill sludge patent June 1977
Conversion of pulp and paper mill sludge to papermaking pulp patent August 1992
Process for the simultaneous production of xylitol and ethanol patent-application November 2006
Treatment of cellulosic material and enzymes useful thererin patent-application February 2009
Growth of Microorganisms in Cellulosic Media patent-application April 2010
Effect of Acetic Acid and Furfural on Cellulase Production of Trichoderma reesei RUT C30 journal January 2000
Production of cellulase by Trichoderma reesei from dairy manure journal March 2005
Cellulase production by Neurospora crassa on wheat straw journal August 1999

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Related Subjects

54 ENVIRONMENTAL SCIENCES
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
59 BASIC BIOLOGICAL SCIENCES