| Molasses as an external carbon source for anaerobic treatment of sulphite evaporator condensate. | |
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MedLine Citation:
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PMID: 19028093 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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Flávio Silva; Helena Nadais; António Prates; Luís Arroja; Isabel Capela |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-11-22 |
Journal Detail:
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Title: Bioresource technology Volume: 100 ISSN: 1873-2976 ISO Abbreviation: Bioresour. Technol. Publication Date: 2009 Mar |
Date Detail:
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Created Date: 2008-12-19 Completed Date: 2009-02-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9889523 Medline TA: Bioresour Technol Country: England |
Other Details:
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Languages: eng Pagination: 1943-50 Citation Subset: IM |
Affiliation:
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CESAM, Department of Environment and Planning, University of Aveiro, Campus Universitário Santiago, 3810-193 Aveiro, Portugal. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Anaerobiosis* Carbon* Eucalyptus Fatty Acids / analysis Hydrogen-Ion Concentration Methane / metabolism Molasses* Sulfites / isolation & purification* Volatilization Wood |
| Chemical | |
Reg. No./Substance:
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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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