Document Detail


Molasses as an external carbon source for anaerobic treatment of sulphite evaporator condensate.
MedLine Citation:
PMID:  19028093     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Failures in stability and COD removal performance often occurred in full-scale anaerobic reactors treating the evaporator condensate from a sulphite pulp mill due to substrate inhibition and occasional contaminations with red liquor (wood cooking liquor). With this work, the beneficial effect provided by the continuous addition of an external carbon source (sugarcane molasses) on the overall performance and stability of the biological process was evaluated. With a moderate addition of molasses the inhibition was mitigated which led to an increase of the COD removal rate from 52% to 77% and a methane production increase from 460 to 1650mld(-1) at an organic loading rate of 2.61g CODl(-1)d(-1). A similar conclusion can be drawn for the case when contamination with red liquor occurs. These results suggest that sugarcane molasses addition may be regarded as a low-cost operational strategy for the anaerobic treatment of sulphite evaporator condensate.
Authors:
Flávio Silva; Helena Nadais; António Prates; Luís Arroja; Isabel Capela
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-11-22
Journal Detail:
Title:  Bioresource technology     Volume:  100     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2009 Mar 
Date Detail:
Created Date:  2008-12-19     Completed Date:  2009-02-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1943-50     Citation Subset:  IM    
Affiliation:
CESAM, Department of Environment and Planning, University of Aveiro, Campus Universitário Santiago, 3810-193 Aveiro, Portugal.
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MeSH Terms
Descriptor/Qualifier:
Anaerobiosis*
Carbon*
Eucalyptus
Fatty Acids / analysis
Hydrogen-Ion Concentration
Methane / metabolism
Molasses*
Sulfites / isolation & purification*
Volatilization
Wood
Chemical
Reg. No./Substance:
0/Fatty Acids; 0/Sulfites; 74-82-8/Methane; 7440-44-0/Carbon

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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