Scale-up issues for in situ anaerobic tetrachloroethene bioremediation
For the full scale implementation of in situ anaerobic bioremediation of tetrachloroethene (PCE) in groundwater, the following issues must be addressed: which organic substrates at which concentration would be most effective in promoting dechlorination and are economical; how far the substrate, elec...
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| Veröffentlicht in: | Journal of industrial microbiology & biotechnology 1997-02, Vol.18 (2/3), p.106-115 |
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| creator | Lee, M.D. (DuPont Central Research and Development, Wilmington, DE.) Quinton, G.E Beeman, R.E Biehle, A.A Liddle, R.L Ellis, D.E Buchanan, R.J. Jr |
| description | For the full scale implementation of in situ anaerobic bioremediation of tetrachloroethene (PCE) in groundwater, the following issues must be addressed: which organic substrates at which concentration would be most effective in promoting dechlorination and are economical; how far the substrate, electron acceptor, and nutrients can be transported in the aquifer; and the placement of delivery and recovery wells for distributing these amendments. In a microcosm study, almost all of the tested inexpensive substrates supported reductive dechlorination of PCE through vinyl chloride (VC) under methanogenic conditions. A minimum of about 60 mg L-1 of organic carbon was needed to dechlorinate 23 micromolar PCE with a single feeding. In a second microcosm study dechlorination stopped at 1,2-dichloroethene (DCE) in microcosms fed higher concentrations of several substrates. At the highest concentrations the substrates inhibited DCE production. Three field tracer tests were conducted to evaluate methods to distribute the amendments across the aquifer. The natural groundwater gradient is not sufficient to distribute substrate evenly. Groundwater injection at 60 times the natural flux rate increased the distribution of substrate. A mixing strategy of cross-gradient injection further increased the distribution of the substrate. Ammonia-nitrogen, sulfate, and phosphate were retarded relative to the substrate and inorganic tracer |
| doi_str_mv | 10.1038/sj.jim.2900289 |
| format | Article |
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Jr</creator><creatorcontrib>Lee, M.D. (DuPont Central Research and Development, Wilmington, DE.) ; Quinton, G.E ; Beeman, R.E ; Biehle, A.A ; Liddle, R.L ; Ellis, D.E ; Buchanan, R.J. Jr</creatorcontrib><description>For the full scale implementation of in situ anaerobic bioremediation of tetrachloroethene (PCE) in groundwater, the following issues must be addressed: which organic substrates at which concentration would be most effective in promoting dechlorination and are economical; how far the substrate, electron acceptor, and nutrients can be transported in the aquifer; and the placement of delivery and recovery wells for distributing these amendments. In a microcosm study, almost all of the tested inexpensive substrates supported reductive dechlorination of PCE through vinyl chloride (VC) under methanogenic conditions. A minimum of about 60 mg L-1 of organic carbon was needed to dechlorinate 23 micromolar PCE with a single feeding. In a second microcosm study dechlorination stopped at 1,2-dichloroethene (DCE) in microcosms fed higher concentrations of several substrates. At the highest concentrations the substrates inhibited DCE production. Three field tracer tests were conducted to evaluate methods to distribute the amendments across the aquifer. The natural groundwater gradient is not sufficient to distribute substrate evenly. Groundwater injection at 60 times the natural flux rate increased the distribution of substrate. A mixing strategy of cross-gradient injection further increased the distribution of the substrate. Ammonia-nitrogen, sulfate, and phosphate were retarded relative to the substrate and inorganic tracer</description><identifier>ISSN: 1367-5435</identifier><identifier>EISSN: 1476-5535</identifier><identifier>DOI: 10.1038/sj.jim.2900289</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Aquifers ; Bacteria ; BIODECONTAMINACION ; Biodegradation of pollutants ; Biological and medical sciences ; BIOREMEDIATION ; Biotechnology ; COMPOSE ORGANOCHLORE ; COMPUESTO ORGANICO DEL CLORO ; Dechlorination ; Environment and pollution ; Fundamental and applied biological sciences. Psychology ; Groundwater ; Industrial applications and implications. Economical aspects ; Injection ; Organic carbon ; Substrates ; Tetrachloroethylene ; Vinyl chloride</subject><ispartof>Journal of industrial microbiology & biotechnology, 1997-02, Vol.18 (2/3), p.106-115</ispartof><rights>1997 INIST-CNRS</rights><rights>Society for Industrial Microbiology 1997</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c407t-a7df9d95a78f4d0375cb4307915d034087f5a63ccf5022cee5c73f0ec5e9e34e3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2729503$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Lee, M.D. (DuPont Central Research and Development, Wilmington, DE.)</creatorcontrib><creatorcontrib>Quinton, G.E</creatorcontrib><creatorcontrib>Beeman, R.E</creatorcontrib><creatorcontrib>Biehle, A.A</creatorcontrib><creatorcontrib>Liddle, R.L</creatorcontrib><creatorcontrib>Ellis, D.E</creatorcontrib><creatorcontrib>Buchanan, R.J. Jr</creatorcontrib><title>Scale-up issues for in situ anaerobic tetrachloroethene bioremediation</title><title>Journal of industrial microbiology & biotechnology</title><description>For the full scale implementation of in situ anaerobic bioremediation of tetrachloroethene (PCE) in groundwater, the following issues must be addressed: which organic substrates at which concentration would be most effective in promoting dechlorination and are economical; how far the substrate, electron acceptor, and nutrients can be transported in the aquifer; and the placement of delivery and recovery wells for distributing these amendments. In a microcosm study, almost all of the tested inexpensive substrates supported reductive dechlorination of PCE through vinyl chloride (VC) under methanogenic conditions. A minimum of about 60 mg L-1 of organic carbon was needed to dechlorinate 23 micromolar PCE with a single feeding. In a second microcosm study dechlorination stopped at 1,2-dichloroethene (DCE) in microcosms fed higher concentrations of several substrates. At the highest concentrations the substrates inhibited DCE production. Three field tracer tests were conducted to evaluate methods to distribute the amendments across the aquifer. The natural groundwater gradient is not sufficient to distribute substrate evenly. Groundwater injection at 60 times the natural flux rate increased the distribution of substrate. A mixing strategy of cross-gradient injection further increased the distribution of the substrate. Ammonia-nitrogen, sulfate, and phosphate were retarded relative to the substrate and inorganic tracer</description><subject>Aquifers</subject><subject>Bacteria</subject><subject>BIODECONTAMINACION</subject><subject>Biodegradation of pollutants</subject><subject>Biological and medical sciences</subject><subject>BIOREMEDIATION</subject><subject>Biotechnology</subject><subject>COMPOSE ORGANOCHLORE</subject><subject>COMPUESTO ORGANICO DEL CLORO</subject><subject>Dechlorination</subject><subject>Environment and pollution</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Groundwater</subject><subject>Industrial applications and implications. 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Jr</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Scale-up issues for in situ anaerobic tetrachloroethene bioremediation</atitle><jtitle>Journal of industrial microbiology & biotechnology</jtitle><date>1997-02-01</date><risdate>1997</risdate><volume>18</volume><issue>2/3</issue><spage>106</spage><epage>115</epage><pages>106-115</pages><issn>1367-5435</issn><eissn>1476-5535</eissn><abstract>For the full scale implementation of in situ anaerobic bioremediation of tetrachloroethene (PCE) in groundwater, the following issues must be addressed: which organic substrates at which concentration would be most effective in promoting dechlorination and are economical; how far the substrate, electron acceptor, and nutrients can be transported in the aquifer; and the placement of delivery and recovery wells for distributing these amendments. In a microcosm study, almost all of the tested inexpensive substrates supported reductive dechlorination of PCE through vinyl chloride (VC) under methanogenic conditions. A minimum of about 60 mg L-1 of organic carbon was needed to dechlorinate 23 micromolar PCE with a single feeding. In a second microcosm study dechlorination stopped at 1,2-dichloroethene (DCE) in microcosms fed higher concentrations of several substrates. At the highest concentrations the substrates inhibited DCE production. Three field tracer tests were conducted to evaluate methods to distribute the amendments across the aquifer. The natural groundwater gradient is not sufficient to distribute substrate evenly. Groundwater injection at 60 times the natural flux rate increased the distribution of substrate. A mixing strategy of cross-gradient injection further increased the distribution of the substrate. Ammonia-nitrogen, sulfate, and phosphate were retarded relative to the substrate and inorganic tracer</abstract><cop>Heidelberg</cop><pub>Springer</pub><doi>10.1038/sj.jim.2900289</doi><tpages>10</tpages></addata></record> |
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| ispartof | Journal of industrial microbiology & biotechnology, 1997-02, Vol.18 (2/3), p.106-115 |
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| source | Access via Oxford University Press (Open Access Collection); SpringerNature Journals |
| subjects | Aquifers Bacteria BIODECONTAMINACION Biodegradation of pollutants Biological and medical sciences BIOREMEDIATION Biotechnology COMPOSE ORGANOCHLORE COMPUESTO ORGANICO DEL CLORO Dechlorination Environment and pollution Fundamental and applied biological sciences. Psychology Groundwater Industrial applications and implications. Economical aspects Injection Organic carbon Substrates Tetrachloroethylene Vinyl chloride |
| title | Scale-up issues for in situ anaerobic tetrachloroethene bioremediation |
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