Comparison of bioaugmentation and biostimulation for the enhancement of dense nonaqueous phase liquid source zone bioremediation
Two $11.7\text{-}{\rm m}^{3}$ experimental controlled release systems (ECRS), packed with sandy model aquifer material and amended with tetrachloroethene (PCE) dense nonaqueous phase liquid (DNAPL) source zone, were operated in parallel with identical flow regimes and electron donor amendments. Hydr...
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| Veröffentlicht in: | Water environment research 2006-12, Vol.78 (13), p.2456-2465 |
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| creator | Da Silva, M.L.B Daprato, R.C Gomez, D.E Hughes, J.B Ward, C.H Alvarez, P.J.J |
| description | Two $11.7\text{-}{\rm m}^{3}$ experimental controlled release systems (ECRS), packed with sandy model aquifer material and amended with tetrachloroethene (PCE) dense nonaqueous phase liquid (DNAPL) source zone, were operated in parallel with identical flow regimes and electron donor amendments. Hydrogen Releasing Compound (Regenesis Bioremediation Products, Inc., San Clemente, California), and later dissolved lactate, served as electron donors to promote dechlorination. One ECRS was bioaugmented with an anaerobic dechlorinating consortium directly into the source zone, and the other served as a control (biostimulated only) to determine the benefits of bioaugmentation. The presence of halorespiring bacteria in the aquifer matrix before bioaugmentation, shown by nested polymerase chain reaction with phylogenetic primers, suggests that dechlorinating catabolic potential may be somewhat widespread. Results obtained corroborate that source zone reductive dechlorination of PCE is possible at near field scale and that a system bioaugmented with a competent halorespiring consortium can enhance DNAPL dissolution and dechlorination processes at significantly greater rates than in a system that is biostimulated only. |
| doi_str_mv | 10.2175/106143006X123111 |
| format | Article |
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Hydrogen Releasing Compound (Regenesis Bioremediation Products, Inc., San Clemente, California), and later dissolved lactate, served as electron donors to promote dechlorination. One ECRS was bioaugmented with an anaerobic dechlorinating consortium directly into the source zone, and the other served as a control (biostimulated only) to determine the benefits of bioaugmentation. The presence of halorespiring bacteria in the aquifer matrix before bioaugmentation, shown by nested polymerase chain reaction with phylogenetic primers, suggests that dechlorinating catabolic potential may be somewhat widespread. Results obtained corroborate that source zone reductive dechlorination of PCE is possible at near field scale and that a system bioaugmented with a competent halorespiring consortium can enhance DNAPL dissolution and dechlorination processes at significantly greater rates than in a system that is biostimulated only.</description><identifier>ISSN: 1061-4303</identifier><identifier>EISSN: 1554-7531</identifier><identifier>DOI: 10.2175/106143006X123111</identifier><identifier>PMID: 17243245</identifier><language>eng</language><publisher>Alexandria, VA: Water Environment Federation</publisher><subject>anaerobes ; Aquifers ; Bacteria ; Bacteria - genetics ; Bacteria - metabolism ; bioaugmentation ; biodegradation ; Biodegradation, Environmental ; Bioremediation ; biostimulation ; Chemical oxygen demand ; Chlorides ; dechlorination ; dense nonaqueous phase liquid ; Dense nonaqueous phase liquids ; DNA, Bacterial - genetics ; DNA, Bacterial - metabolism ; Electrons ; Groundwater ; groundwater contamination ; halorespiring bacteria ; Lactates ; Methods ; Microbiology ; nonaqueous phase liquids ; Polymerase chain reaction ; Research Papers ; Reverse Transcriptase Polymerase Chain Reaction ; sand ; soil inoculation ; Soil Pollutants ; source zone bioremediation ; Tetrachloroethylene ; Water Pollutants, Chemical - metabolism</subject><ispartof>Water environment research, 2006-12, Vol.78 (13), p.2456-2465</ispartof><rights>Copyright 2006 The Water Environment Federation (WEF)</rights><rights>2006 Water Environment Federation</rights><rights>Copyright Water Environment Federation Dec 2006</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4786-f2675956c60144501c588402b19935abf2902f197c5d2d4166d7cce77b1185c53</citedby><cites>FETCH-LOGICAL-c4786-f2675956c60144501c588402b19935abf2902f197c5d2d4166d7cce77b1185c53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/25053656$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/25053656$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,1411,27901,27902,45550,45551,57992,58225</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17243245$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Da Silva, M.L.B</creatorcontrib><creatorcontrib>Daprato, R.C</creatorcontrib><creatorcontrib>Gomez, D.E</creatorcontrib><creatorcontrib>Hughes, J.B</creatorcontrib><creatorcontrib>Ward, C.H</creatorcontrib><creatorcontrib>Alvarez, P.J.J</creatorcontrib><title>Comparison of bioaugmentation and biostimulation for the enhancement of dense nonaqueous phase liquid source zone bioremediation</title><title>Water environment research</title><addtitle>Water Environ Res</addtitle><description>Two $11.7\text{-}{\rm m}^{3}$ experimental controlled release systems (ECRS), packed with sandy model aquifer material and amended with tetrachloroethene (PCE) dense nonaqueous phase liquid (DNAPL) source zone, were operated in parallel with identical flow regimes and electron donor amendments. Hydrogen Releasing Compound (Regenesis Bioremediation Products, Inc., San Clemente, California), and later dissolved lactate, served as electron donors to promote dechlorination. One ECRS was bioaugmented with an anaerobic dechlorinating consortium directly into the source zone, and the other served as a control (biostimulated only) to determine the benefits of bioaugmentation. The presence of halorespiring bacteria in the aquifer matrix before bioaugmentation, shown by nested polymerase chain reaction with phylogenetic primers, suggests that dechlorinating catabolic potential may be somewhat widespread. Results obtained corroborate that source zone reductive dechlorination of PCE is possible at near field scale and that a system bioaugmented with a competent halorespiring consortium can enhance DNAPL dissolution and dechlorination processes at significantly greater rates than in a system that is biostimulated only.</description><subject>anaerobes</subject><subject>Aquifers</subject><subject>Bacteria</subject><subject>Bacteria - genetics</subject><subject>Bacteria - metabolism</subject><subject>bioaugmentation</subject><subject>biodegradation</subject><subject>Biodegradation, Environmental</subject><subject>Bioremediation</subject><subject>biostimulation</subject><subject>Chemical oxygen demand</subject><subject>Chlorides</subject><subject>dechlorination</subject><subject>dense nonaqueous phase liquid</subject><subject>Dense nonaqueous phase liquids</subject><subject>DNA, Bacterial - genetics</subject><subject>DNA, Bacterial - metabolism</subject><subject>Electrons</subject><subject>Groundwater</subject><subject>groundwater contamination</subject><subject>halorespiring bacteria</subject><subject>Lactates</subject><subject>Methods</subject><subject>Microbiology</subject><subject>nonaqueous phase liquids</subject><subject>Polymerase chain reaction</subject><subject>Research Papers</subject><subject>Reverse Transcriptase Polymerase Chain Reaction</subject><subject>sand</subject><subject>soil inoculation</subject><subject>Soil Pollutants</subject><subject>source zone bioremediation</subject><subject>Tetrachloroethylene</subject><subject>Water Pollutants, Chemical - 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packed with sandy model aquifer material and amended with tetrachloroethene (PCE) dense nonaqueous phase liquid (DNAPL) source zone, were operated in parallel with identical flow regimes and electron donor amendments. Hydrogen Releasing Compound (Regenesis Bioremediation Products, Inc., San Clemente, California), and later dissolved lactate, served as electron donors to promote dechlorination. One ECRS was bioaugmented with an anaerobic dechlorinating consortium directly into the source zone, and the other served as a control (biostimulated only) to determine the benefits of bioaugmentation. The presence of halorespiring bacteria in the aquifer matrix before bioaugmentation, shown by nested polymerase chain reaction with phylogenetic primers, suggests that dechlorinating catabolic potential may be somewhat widespread. Results obtained corroborate that source zone reductive dechlorination of PCE is possible at near field scale and that a system bioaugmented with a competent halorespiring consortium can enhance DNAPL dissolution and dechlorination processes at significantly greater rates than in a system that is biostimulated only.</abstract><cop>Alexandria, VA</cop><pub>Water Environment Federation</pub><pmid>17243245</pmid><doi>10.2175/106143006X123111</doi><tpages>10</tpages></addata></record> |
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| subjects | anaerobes Aquifers Bacteria Bacteria - genetics Bacteria - metabolism bioaugmentation biodegradation Biodegradation, Environmental Bioremediation biostimulation Chemical oxygen demand Chlorides dechlorination dense nonaqueous phase liquid Dense nonaqueous phase liquids DNA, Bacterial - genetics DNA, Bacterial - metabolism Electrons Groundwater groundwater contamination halorespiring bacteria Lactates Methods Microbiology nonaqueous phase liquids Polymerase chain reaction Research Papers Reverse Transcriptase Polymerase Chain Reaction sand soil inoculation Soil Pollutants source zone bioremediation Tetrachloroethylene Water Pollutants, Chemical - metabolism |
| title | Comparison of bioaugmentation and biostimulation for the enhancement of dense nonaqueous phase liquid source zone bioremediation |
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