| Acid pre-treatment of sewage anaerobic sludge to increase hydrogen producing bacteria HPB: effectiveness and reproducibility. | |
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MedLine Citation:
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PMID: 19001717 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The present study is aimed to test the effectiveness and the reproducibility of the acid pre-treatment of sewage sludge to suppress the methanogenic bacteria activity, in order to increase the hydrogen forming bacteria activity, mainly Clostridium species. The treated sludge has been tested on glucose reach medium under mesophilic conditions (35 degrees C), in batch mode to quantify the biological fermentative hydrogen production. In the whole series of experiments, the main components of biogas are hydrogen (52-60%) and carbon dioxide (40-48%); no methane and hydrogen sulphide were present in it. The rate of biogas production reached a maximum of 75 ml/lh. An overall mean hydrogen conversion efficiency was 11.20% on the assumption of maximum of 3 mol H2/mol glucose. Clostridium spp. multiplied ten times after 10 h of fermentation and over that thousand times at the end of fermentation. |
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Authors:
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T Tommasi; G Sassi; B Ruggeri |
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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: Water science and technology : a journal of the International Association on Water Pollution Research Volume: 58 ISSN: 0273-1223 ISO Abbreviation: Water Sci. Technol. Publication Date: 2008 |
Date Detail:
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Created Date: 2008-11-12 Completed Date: 2009-01-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9879497 Medline TA: Water Sci Technol Country: England |
Other Details:
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Languages: eng Pagination: 1623-8 Citation Subset: IM |
Copyright Information:
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IWA Publishing 2008. |
Affiliation:
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Department of Materials Science and Chemical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi, 24 10129, Turin, Italy. tonia.tommasi@polito.it |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Anaerobiosis* Clostridium / growth & development, metabolism* Hydrogen / metabolism* Hydrogen-Ion Concentration Kinetics Models, Biological Oxidation-Reduction Reproducibility of Results Sewage / microbiology* |
| Chemical | |
Reg. No./Substance:
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0/Sewage; 1333-74-0/Hydrogen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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