Trichloroethylene and tetrachloroethylene reduction in a metallic iron-water-vapor batch system
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| Title: | Trichloroethylene and tetrachloroethylene reduction in a metallic iron-water-vapor batch system |
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| Authors: | Burris, D. R., Wells, J. R., Campbell, T. J., Roberts, A. L. |
| Source: | Environmental Toxicology & Chemistry. Apr1997, Vol. 16 Issue 4, p625. 0p. |
| Abstract: | The reduction of trichloroethylene (TCE) and tetrachloroethylene (PCE) was examined in an anaerobic batch vapor-water system containing metallic iron. Concentrations of the parent compounds and products (some of which went on to react further) were determined at discrete time intervals during the reactions by analysis of the headspace vapor. cis-1,2-Dichloroethylene, 1,1-dichloroethylene, vinyl chloride, methane, chloroacetylene, acetylene, ethylene, ethane, and C3-5alkenes and alkanes were observed as products from both compounds. Trichloroethylene was also observed from the reduction of PCE. The masses of unreacted polychlorinated ethylenes sorbed on the iron surfacewere significant based upon previously determined sorption isotherms, and were incorporated in carbon and chloride recovery estimates. Final carbon and chlorine recoveries of 76% and 104%, respectively, were obtained after a 92% loss of the initial TCE. After the loss of 74%of the initial PCE, the final carbon and chlorine recoveries were 90% and 118%, respectively. Reaction pathways, which include both hydrogenolysis and reductive beta-elimination, are proposed to account forthe observed products. [ABSTRACT FROM AUTHOR] |
| Copyright of Environmental Toxicology & Chemistry is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 8283892 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Trichloroethylene and tetrachloroethylene reduction in a metallic iron-water-vapor batch system – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Burris%2C+D%2E+R%2E%22">Burris, D. R.</searchLink><br /><searchLink fieldCode="AR" term="%22Wells%2C+J%2E+R%2E%22">Wells, J. R.</searchLink><br /><searchLink fieldCode="AR" term="%22Campbell%2C+T%2E+J%2E%22">Campbell, T. J.</searchLink><br /><searchLink fieldCode="AR" term="%22Roberts%2C+A%2E+L%2E%22">Roberts, A. L.</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Environmental+Toxicology+%26+Chemistry%22">Environmental Toxicology & Chemistry</searchLink>. Apr1997, Vol. 16 Issue 4, p625. 0p. – Name: Abstract Label: Abstract Group: Ab Data: The reduction of trichloroethylene (TCE) and tetrachloroethylene (PCE) was examined in an anaerobic batch vapor-water system containing metallic iron. Concentrations of the parent compounds and products (some of which went on to react further) were determined at discrete time intervals during the reactions by analysis of the headspace vapor. cis-1,2-Dichloroethylene, 1,1-dichloroethylene, vinyl chloride, methane, chloroacetylene, acetylene, ethylene, ethane, and C3-5alkenes and alkanes were observed as products from both compounds. Trichloroethylene was also observed from the reduction of PCE. The masses of unreacted polychlorinated ethylenes sorbed on the iron surfacewere significant based upon previously determined sorption isotherms, and were incorporated in carbon and chloride recovery estimates. Final carbon and chlorine recoveries of 76% and 104%, respectively, were obtained after a 92% loss of the initial TCE. After the loss of 74%of the initial PCE, the final carbon and chlorine recoveries were 90% and 118%, respectively. Reaction pathways, which include both hydrogenolysis and reductive beta-elimination, are proposed to account forthe observed products. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Environmental Toxicology & Chemistry is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 0 StartPage: 625 Titles: – TitleFull: Trichloroethylene and tetrachloroethylene reduction in a metallic iron-water-vapor batch system Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Burris, D. R. – PersonEntity: Name: NameFull: Wells, J. R. – PersonEntity: Name: NameFull: Campbell, T. J. – PersonEntity: Name: NameFull: Roberts, A. L. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr1997 Type: published Y: 1997 Identifiers: – Type: issn-print Value: 07307268 Numbering: – Type: volume Value: 16 – Type: issue Value: 4 Titles: – TitleFull: Environmental Toxicology & Chemistry Type: main |
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