| Degradation of pentachlorophenol in aqueous solution by audible-frequency sonolytic ozonation. | |
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MedLine Citation:
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PMID: 16386836 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The degradation of pentachlorophenol (PCP) in aqueous solution by audible-frequency sonolytic ozonation was studied. The sonolysis of H(2)O and PCP/H(2)O solutions and the dissolution and decomposition of ozone under audible-frequency sonication were evaluated as well. The results showed that the ozone dissolution rate and PCP degradation rate were significantly enhanced by sonication in comparison to using mechanical stirring and O(3) bubbling alone. This enhancement is most likely attributed to the strong turbulence induced by sonication. The first-order rate constant of PCP degradation by ozonation with sonication is more than 15 times faster than that with bubbling ozone alone, while the rate constant with mechanical stirring is only four times faster. The influence of the ozone feed rate on PCP degradation and the degradation byproducts were examined as well. In addition, results showed that no H(2)O(2) was generated by sonolysis of water with audible-frequency sonication and no PCP was degraded by sonolysis alone. |
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Authors:
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Le Zeng; James W McKinley |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2006-01-18 |
Journal Detail:
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Title: Journal of hazardous materials Volume: 135 ISSN: 0304-3894 ISO Abbreviation: J. Hazard. Mater. Publication Date: 2006 Jul |
Date Detail:
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Created Date: 2006-05-30 Completed Date: 2006-10-26 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9422688 Medline TA: J Hazard Mater Country: Netherlands |
Other Details:
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Languages: eng Pagination: 218-25 Citation Subset: IM |
Affiliation:
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Alberta Research Council, P.O. Bag 4000, Vegreville, AB, Canada T9C 1T4. lzeng@arc.ab.ca |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adsorption Ozone / chemistry* Pentachlorophenol / chemistry* Solutions Sonication* Water / chemistry |
| Chemical | |
Reg. No./Substance:
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0/Solutions; 10028-15-6/Ozone; 7732-18-5/Water; 87-86-5/Pentachlorophenol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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