Long-term changes in ground water chemistry at a phytoremediation demonstration site.
Identifieur interne : 004086 ( Main/Corpus ); précédent : 004085; suivant : 004087Long-term changes in ground water chemistry at a phytoremediation demonstration site.
Auteurs : Sandra M. Eberts ; Sonya A. Jones ; Christopher L. Braun ; Gregory J. HarveySource :
- Ground water [ 0017-467X ]
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Water.
- chemical , isolation & purification : Soil Pollutants, Water Pollutants.
- physiology : Populus.
- Biodegradation, Environmental, Seasons, Water Movements.
Abstract
A field-scale demonstration project was conducted to evaluate the capability of eastern cottonwood trees (Populus deltoides) to attenuate trichloroethene (TCE) contamination of ground water. By the middle of the sixth growing season, trees planted where depth to water was <3 m delivered enough dissolved organic carbon to the underlying aquifer to lower dissolved oxygen concentrations, to create iron-reducing conditions along the plume centerline and sulfate-reducing or methanogenic conditions in localized areas, and to initiate in situ reductive dechlorination of TCE. Apparent biodegradation rate constants for TCE along the centerline of the plume beneath the phytoremediation system increased from 0.0002/d to 0.02/d during the first six growing seasons. The corresponding increase in natural attenuation capacity of the aquifer along the plume centerline, from 0.0004/m to 0.024/m, is associated with a potential decrease in plume-stabilization distance from 9680 to 160 m. Demonstration results provide insight into the amount of vegetation and time that may be needed to achieve cleanup objectives at the field scale.
DOI: 10.1111/j.1745-6584.2005.0018.x
PubMed: 15819939
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pubmed:15819939Le document en format XML
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Harvey</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005 Mar-Apr</date><idno type="RBID">pubmed:15819939</idno><idno type="pmid">15819939</idno><idno type="doi">10.1111/j.1745-6584.2005.0018.x</idno><idno type="wicri:Area/Main/Corpus">004086</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">004086</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Long-term changes in ground water chemistry at a phytoremediation demonstration site.</title><author><name sortKey="Eberts, Sandra M" sort="Eberts, Sandra M" uniqKey="Eberts S" first="Sandra M" last="Eberts">Sandra M. Eberts</name><affiliation><nlm:affiliation>U.S. Geological Survey, 6480 Doubletree Avenue, Columbus, OH 43229, USA. smeberts@usgs.gov</nlm:affiliation></affiliation></author><author><name sortKey="Jones, Sonya A" sort="Jones, Sonya A" uniqKey="Jones S" first="Sonya A" last="Jones">Sonya A. Jones</name></author><author><name sortKey="Braun, Christopher L" sort="Braun, Christopher L" uniqKey="Braun C" first="Christopher L" last="Braun">Christopher L. Braun</name></author><author><name sortKey="Harvey, Gregory J" sort="Harvey, Gregory J" uniqKey="Harvey G" first="Gregory J" last="Harvey">Gregory J. 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By the middle of the sixth growing season, trees planted where depth to water was <3 m delivered enough dissolved organic carbon to the underlying aquifer to lower dissolved oxygen concentrations, to create iron-reducing conditions along the plume centerline and sulfate-reducing or methanogenic conditions in localized areas, and to initiate in situ reductive dechlorination of TCE. Apparent biodegradation rate constants for TCE along the centerline of the plume beneath the phytoremediation system increased from 0.0002/d to 0.02/d during the first six growing seasons. The corresponding increase in natural attenuation capacity of the aquifer along the plume centerline, from 0.0004/m to 0.024/m, is associated with a potential decrease in plume-stabilization distance from 9680 to 160 m. Demonstration results provide insight into the amount of vegetation and time that may be needed to achieve cleanup objectives at the field scale.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15819939</PMID><DateCompleted><Year>2005</Year><Month>07</Month><Day>12</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0017-467X</ISSN><JournalIssue CitedMedium="Print"><Volume>43</Volume><Issue>2</Issue><PubDate><MedlineDate>2005 Mar-Apr</MedlineDate></PubDate></JournalIssue><Title>Ground water</Title><ISOAbbreviation>Ground Water</ISOAbbreviation></Journal><ArticleTitle>Long-term changes in ground water chemistry at a phytoremediation demonstration site.</ArticleTitle><Pagination><MedlinePgn>178-86</MedlinePgn></Pagination><Abstract><AbstractText>A field-scale demonstration project was conducted to evaluate the capability of eastern cottonwood trees (Populus deltoides) to attenuate trichloroethene (TCE) contamination of ground water. By the middle of the sixth growing season, trees planted where depth to water was <3 m delivered enough dissolved organic carbon to the underlying aquifer to lower dissolved oxygen concentrations, to create iron-reducing conditions along the plume centerline and sulfate-reducing or methanogenic conditions in localized areas, and to initiate in situ reductive dechlorination of TCE. Apparent biodegradation rate constants for TCE along the centerline of the plume beneath the phytoremediation system increased from 0.0002/d to 0.02/d during the first six growing seasons. The corresponding increase in natural attenuation capacity of the aquifer along the plume centerline, from 0.0004/m to 0.024/m, is associated with a potential decrease in plume-stabilization distance from 9680 to 160 m. Demonstration results provide insight into the amount of vegetation and time that may be needed to achieve cleanup objectives at the field scale.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Eberts</LastName><ForeName>Sandra M</ForeName><Initials>SM</Initials><AffiliationInfo><Affiliation>U.S. Geological Survey, 6480 Doubletree Avenue, Columbus, OH 43229, USA. smeberts@usgs.gov</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Jones</LastName><ForeName>Sonya A</ForeName><Initials>SA</Initials></Author><Author ValidYN="Y"><LastName>Braun</LastName><ForeName>Christopher L</ForeName><Initials>CL</Initials></Author><Author ValidYN="Y"><LastName>Harvey</LastName><ForeName>Gregory J</ForeName><Initials>GJ</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Ground Water</MedlineTA><NlmUniqueID>9882886</NlmUniqueID><ISSNLinking>0017-467X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012989">Soil Pollutants</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D014873">Water Pollutants</NameOfSubstance></Chemical><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001673" MajorTopicYN="N">Biodegradation, Environmental</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012621" MajorTopicYN="N">Seasons</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012989" MajorTopicYN="N">Soil Pollutants</DescriptorName><QualifierName UI="Q000302" MajorTopicYN="Y">isolation & purification</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014872" MajorTopicYN="N">Water Movements</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014873" MajorTopicYN="N">Water Pollutants</DescriptorName><QualifierName UI="Q000302" MajorTopicYN="Y">isolation & purification</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2005</Year><Month>4</Month><Day>12</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2005</Year><Month>7</Month><Day>13</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2005</Year><Month>4</Month><Day>12</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">15819939</ArticleId><ArticleId IdType="pii">GWAT18</ArticleId><ArticleId IdType="doi">10.1111/j.1745-6584.2005.0018.x</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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