| Influence of a supplemental carbon source on anaerobic dechlorination of pentachlorophenol in granular sludge. | |
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MedLine Citation:
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PMID: 1580919 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Anaerobic dechlorination of pentachlorophenol (PCP) was studied in two upflow anaerobic sludge blanket reactors. One reactor received glucose (0.9 g liter-1) as an additional carbon source; the other one served as a control. The concentration of PCP in the medium was 4.5 and 3.0 mg liter-1 in the experimental and control reactors, respectively. The reactors were inoculated with granular sludge previously grown on sugar-containing wastewater. After 10 months of continuous operation, the removal of PCP was 99% in the glucose-amended reactor, whereas the removal in the control reactor varied between 32 and 77%. Furthermore, 94% of the PCP was completely dechlorinated in the glucose reactor compared with a maximum of 20% in the control reactor. In the same period, the amount of biomass in the glucose reactor had increased by approximately 150% compared with that in the control reactor, where no growth of the sludge bed occurred. Batch culture activity tests showed that the addition of glucose had a stimulatory effect on the dechlorination rate of PCP per gram of volatile solids. This indicated that the better performance of the glucose-amended reactor was due to a higher concentration of biomass and a direct stimulatory effect of glucose on the dechlorination rate. The pattern of dechlorination of PCP showed that an initial para cleavage was followed by two ortho cleavages. |
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Authors:
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H V Hendriksen; S Larsen; B K Ahring |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Applied and environmental microbiology Volume: 58 ISSN: 0099-2240 ISO Abbreviation: Appl. Environ. Microbiol. Publication Date: 1992 Jan |
Date Detail:
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Created Date: 1992-03-30 Completed Date: 1992-03-30 Revised Date: 2010-09-10 |
Medline Journal Info:
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Nlm Unique ID: 7605801 Medline TA: Appl Environ Microbiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 365-70 Citation Subset: IM |
Affiliation:
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Department of Biotechnology, Technical University, Lyngby, Denmark. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Anaerobiosis Biotransformation Carbon / metabolism* Chlorine / metabolism Molecular Structure Pentachlorophenol / chemistry, metabolism* Sewage* Soil Microbiology |
| Chemical | |
Reg. No./Substance:
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0/Sewage; 7440-44-0/Carbon; 7782-50-5/Chlorine; 87-86-5/Pentachlorophenol |
| Comments/Corrections | |
Erratum In:
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Appl Environ Microbiol 1992 Mar;58(3):1073 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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