Document Detail


Biological hydrogen production by enriched anaerobic cultures in the presence of copper and zinc.
MedLine Citation:
PMID:  15030144     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Batch experiments were carried out to examine the productions of hydrogen and volatile fatty acids from glucose by enriched anaerobic culture in the presence of Cu and Zn. Results showed the specific hydrogen production rate was enhanced by the dosage of Cu at 50-100 mg/dm3 or the dosage of Zn at 10-250 mg/dm3, but was inhibited by Cu over 200 mg/dm3 or Zn at 500 mg/dm3. The hydrogen production yield was enhanced by Cu of 5-400 mg/dm3 or Zn of 5-500 mg/dm3. Productions of acetate and propionate were inhibited by Cu of 5-400 mg/dm3 or Zn of 5-500 mg/dm3. On the other hand, production of butyrate was stimulated, whereas production of ethanol was not affected. In terms of the CI,50 values. Cu was more toxic than Zn. The modified Gompertz equation was able to properly describe the cumulative hydrogen production in the presence of Cu or Zn.
Authors:
Xian-Jun Zheng; Han-Qing Yu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering     Volume:  39     ISSN:  1093-4529     ISO Abbreviation:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Publication Date:  2004  
Date Detail:
Created Date:  2004-03-19     Completed Date:  2004-06-01     Revised Date:  2009-08-14    
Medline Journal Info:
Nlm Unique ID:  9812551     Medline TA:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  89-101     Citation Subset:  IM    
Affiliation:
Laboratory of Environmental Engineering, School of Chemistry, University of Science & Technology of China, Hefei, Anhui, China.
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MeSH Terms
Descriptor/Qualifier:
Bacteria, Anaerobic
Bioelectric Energy Sources*
Copper / toxicity*
Fatty Acids, Volatile / analysis*
Fermentation
Glucose / metabolism
Hydrogen / analysis*
Models, Theoretical*
Zinc / toxicity*
Chemical
Reg. No./Substance:
0/Fatty Acids, Volatile; 1333-74-0/Hydrogen; 50-99-7/Glucose; 7440-50-8/Copper; 7440-66-6/Zinc

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


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