Stimulation of the reductive dechlorination of tetrachloroethene in anaerobic aquifer microcosms by the addition of toluene
The possible use of certain alkylbenzenes such as toluene as electron donors in the reductive dechlorination of tetrachloroethene is examined. Evidence from field studies had suggested that this type of reaction might be occurring at sites exposed to both alkylbenzenes and chlorinated solvents. Micr...
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| Veröffentlicht in: | Environmental science & technology 1991-05, Vol.25 (5), p.982-984 |
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| container_title | Environmental science & technology |
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| creator | Sewell, Guy W Gibson, Susan A |
| description | The possible use of certain alkylbenzenes such as toluene as electron donors in the reductive dechlorination of tetrachloroethene is examined. Evidence from field studies had suggested that this type of reaction might be occurring at sites exposed to both alkylbenzenes and chlorinated solvents. Microcosms constructed with aquifer solids from an area exposed to both were used to investigate the biologically mediated interactions of toluene and tetrachloroethene. After 130 d of incubation, active microcosms spiked with toluene and tetrachloroethene showed a loss of the latter which was not seen in autoclaved controls or in microcosms spiked with tetrachloroethene alone. Overall, the study indicated that toluene could serve as an initial source of reducing potential for the reductive dechlorination of chloroethenes in anaerobic conditions. |
| doi_str_mv | 10.1021/es00017a024 |
| format | Article |
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Evidence from field studies had suggested that this type of reaction might be occurring at sites exposed to both alkylbenzenes and chlorinated solvents. Microcosms constructed with aquifer solids from an area exposed to both were used to investigate the biologically mediated interactions of toluene and tetrachloroethene. After 130 d of incubation, active microcosms spiked with toluene and tetrachloroethene showed a loss of the latter which was not seen in autoclaved controls or in microcosms spiked with tetrachloroethene alone. 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Sci. Technol</addtitle><description>The possible use of certain alkylbenzenes such as toluene as electron donors in the reductive dechlorination of tetrachloroethene is examined. Evidence from field studies had suggested that this type of reaction might be occurring at sites exposed to both alkylbenzenes and chlorinated solvents. Microcosms constructed with aquifer solids from an area exposed to both were used to investigate the biologically mediated interactions of toluene and tetrachloroethene. After 130 d of incubation, active microcosms spiked with toluene and tetrachloroethene showed a loss of the latter which was not seen in autoclaved controls or in microcosms spiked with tetrachloroethene alone. Overall, the study indicated that toluene could serve as an initial source of reducing potential for the reductive dechlorination of chloroethenes in anaerobic conditions.</description><subject>540220 - Environment, Terrestrial- Chemicals Monitoring & Transport- (1990-)</subject><subject>ALKALI METAL COMPOUNDS</subject><subject>ALKANES</subject><subject>ALKYLATED AROMATICS</subject><subject>ANAEROBIC CONDITIONS</subject><subject>AQUIFERS</subject><subject>AROMATICS</subject><subject>BINDING ENERGY</subject><subject>CHALCOGENIDES</subject><subject>CHEMICAL REACTIONS</subject><subject>CHLORINATED ALIPHATIC HYDROCARBONS</subject><subject>CHROMATOGRAPHY</subject><subject>CLEANING</subject><subject>DECHLORINATION</subject><subject>DECONTAMINATION</subject><subject>DEHALOGENATION</subject><subject>ELECTRONS</subject><subject>ELEMENTARY PARTICLES</subject><subject>EMISSION SPECTROSCOPY</subject><subject>ENERGY</subject><subject>ENVIRONMENTAL SCIENCES</subject><subject>FERMIONS</subject><subject>FLUORESCENCE SPECTROSCOPY</subject><subject>Freshwater</subject><subject>GAS CHROMATOGRAPHY</subject><subject>HALOGENATED ALIPHATIC HYDROCARBONS</subject><subject>HYDROCARBONS</subject><subject>LEPTONS</subject><subject>LIQUID COLUMN CHROMATOGRAPHY</subject><subject>METHANE</subject><subject>MICROCOSMS</subject><subject>MICROSCOPY</subject><subject>ORGANIC CHLORINE COMPOUNDS</subject><subject>ORGANIC COMPOUNDS</subject><subject>ORGANIC HALOGEN COMPOUNDS</subject><subject>PH VALUE</subject><subject>REACTION INTERMEDIATES</subject><subject>REDUCTION</subject><subject>SEPARATION PROCESSES</subject><subject>SODIUM COMPOUNDS</subject><subject>SODIUM SULFIDES</subject><subject>SPECTROSCOPY</subject><subject>SUBSURFACE ENVIRONMENTS</subject><subject>SULFIDES</subject><subject>SULFUR COMPOUNDS</subject><subject>TOLUENE</subject><subject>VALENCE</subject><issn>0013-936X</issn><issn>1520-5851</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><recordid>eNqN0U1rFjEQB_AgCj4-evILBA96kNW859mj9B0qCq1QvIRsMqGpu5s2yYrFL2_sSvUg6Ckw-c0fZgah55S8oYTRt1AIIVRbwsQDtKGSkU7uJH2INq3Mu56ri8foSSlXjTFOdhv0_azGaRltjWnGKeB6CTiDX1yNXwF7cJdjynH-_Q8127tigmZnwHHGdraQ0xAdtjdLDJDxFF1OLpWp4OH2LtR6H-9D0ri01qfoUbBjgWe_3i36dHhwvnfcnX44Otl7d9pZrlnt6EA8EU5KK2VQvZQkSOK1ZIPgiluv2S74QVgQwjrh-53SLCjVKy9Z8M7xLXqx5qZSoyku1jaWS_MMrhpJGeW6b-jliq5zulmgVDPF4mAc7QxpKYYqzjTl9N9QMM178R-JXHMuWu4WvV5h21kpGYK5znGy-dZQYn7e1fxx16a7VcdS4ds9tfmLUZprac4_npn3_cX-50N6ZPabf7V664q5Skue267_mvwD0-Oyww</recordid><startdate>19910501</startdate><enddate>19910501</enddate><creator>Sewell, Guy W</creator><creator>Gibson, Susan A</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7TV</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>OTOTI</scope></search><sort><creationdate>19910501</creationdate><title>Stimulation of the reductive dechlorination of tetrachloroethene in anaerobic aquifer microcosms by the addition of toluene</title><author>Sewell, Guy W ; Gibson, Susan A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a372t-1b0d04c55a55f69550f50d752b4363ad728fdb4ae44ac4d98672f6696d52fdcc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>540220 - Environment, Terrestrial- Chemicals Monitoring & Transport- (1990-)</topic><topic>ALKALI METAL COMPOUNDS</topic><topic>ALKANES</topic><topic>ALKYLATED AROMATICS</topic><topic>ANAEROBIC CONDITIONS</topic><topic>AQUIFERS</topic><topic>AROMATICS</topic><topic>BINDING ENERGY</topic><topic>CHALCOGENIDES</topic><topic>CHEMICAL REACTIONS</topic><topic>CHLORINATED ALIPHATIC HYDROCARBONS</topic><topic>CHROMATOGRAPHY</topic><topic>CLEANING</topic><topic>DECHLORINATION</topic><topic>DECONTAMINATION</topic><topic>DEHALOGENATION</topic><topic>ELECTRONS</topic><topic>ELEMENTARY PARTICLES</topic><topic>EMISSION SPECTROSCOPY</topic><topic>ENERGY</topic><topic>ENVIRONMENTAL SCIENCES</topic><topic>FERMIONS</topic><topic>FLUORESCENCE SPECTROSCOPY</topic><topic>Freshwater</topic><topic>GAS CHROMATOGRAPHY</topic><topic>HALOGENATED ALIPHATIC HYDROCARBONS</topic><topic>HYDROCARBONS</topic><topic>LEPTONS</topic><topic>LIQUID COLUMN CHROMATOGRAPHY</topic><topic>METHANE</topic><topic>MICROCOSMS</topic><topic>MICROSCOPY</topic><topic>ORGANIC CHLORINE COMPOUNDS</topic><topic>ORGANIC COMPOUNDS</topic><topic>ORGANIC HALOGEN COMPOUNDS</topic><topic>PH VALUE</topic><topic>REACTION INTERMEDIATES</topic><topic>REDUCTION</topic><topic>SEPARATION PROCESSES</topic><topic>SODIUM COMPOUNDS</topic><topic>SODIUM SULFIDES</topic><topic>SPECTROSCOPY</topic><topic>SUBSURFACE ENVIRONMENTS</topic><topic>SULFIDES</topic><topic>SULFUR COMPOUNDS</topic><topic>TOLUENE</topic><topic>VALENCE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sewell, Guy W</creatorcontrib><creatorcontrib>Gibson, Susan A</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>OSTI.GOV</collection><jtitle>Environmental science & technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sewell, Guy W</au><au>Gibson, Susan A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stimulation of the reductive dechlorination of tetrachloroethene in anaerobic aquifer microcosms by the addition of toluene</atitle><jtitle>Environmental science & technology</jtitle><addtitle>Environ. Sci. Technol</addtitle><date>1991-05-01</date><risdate>1991</risdate><volume>25</volume><issue>5</issue><spage>982</spage><epage>984</epage><pages>982-984</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><abstract>The possible use of certain alkylbenzenes such as toluene as electron donors in the reductive dechlorination of tetrachloroethene is examined. Evidence from field studies had suggested that this type of reaction might be occurring at sites exposed to both alkylbenzenes and chlorinated solvents. Microcosms constructed with aquifer solids from an area exposed to both were used to investigate the biologically mediated interactions of toluene and tetrachloroethene. After 130 d of incubation, active microcosms spiked with toluene and tetrachloroethene showed a loss of the latter which was not seen in autoclaved controls or in microcosms spiked with tetrachloroethene alone. Overall, the study indicated that toluene could serve as an initial source of reducing potential for the reductive dechlorination of chloroethenes in anaerobic conditions.</abstract><cop>United States</cop><pub>American Chemical Society</pub><doi>10.1021/es00017a024</doi><tpages>3</tpages></addata></record> |
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| identifier | ISSN: 0013-936X |
| ispartof | Environmental science & technology, 1991-05, Vol.25 (5), p.982-984 |
| issn | 0013-936X 1520-5851 |
| language | eng |
| recordid | cdi_osti_scitechconnect_5121379 |
| source | American Chemical Society Journals |
| subjects | 540220 - Environment, Terrestrial- Chemicals Monitoring & Transport- (1990-) ALKALI METAL COMPOUNDS ALKANES ALKYLATED AROMATICS ANAEROBIC CONDITIONS AQUIFERS AROMATICS BINDING ENERGY CHALCOGENIDES CHEMICAL REACTIONS CHLORINATED ALIPHATIC HYDROCARBONS CHROMATOGRAPHY CLEANING DECHLORINATION DECONTAMINATION DEHALOGENATION ELECTRONS ELEMENTARY PARTICLES EMISSION SPECTROSCOPY ENERGY ENVIRONMENTAL SCIENCES FERMIONS FLUORESCENCE SPECTROSCOPY Freshwater GAS CHROMATOGRAPHY HALOGENATED ALIPHATIC HYDROCARBONS HYDROCARBONS LEPTONS LIQUID COLUMN CHROMATOGRAPHY METHANE MICROCOSMS MICROSCOPY ORGANIC CHLORINE COMPOUNDS ORGANIC COMPOUNDS ORGANIC HALOGEN COMPOUNDS PH VALUE REACTION INTERMEDIATES REDUCTION SEPARATION PROCESSES SODIUM COMPOUNDS SODIUM SULFIDES SPECTROSCOPY SUBSURFACE ENVIRONMENTS SULFIDES SULFUR COMPOUNDS TOLUENE VALENCE |
| title | Stimulation of the reductive dechlorination of tetrachloroethene in anaerobic aquifer microcosms by the addition of toluene |
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