Phytoremediation of BTEX hydrocarbons: potential impacts of diurnal groundwater fluctuation on microbial degradation.
Identifieur interne : 003528 ( Main/Exploration ); précédent : 003527; suivant : 003529Phytoremediation of BTEX hydrocarbons: potential impacts of diurnal groundwater fluctuation on microbial degradation.
Auteurs : Jeff A. Weishaar [États-Unis] ; David Tsao ; Joel G. BurkenSource :
- International journal of phytoremediation [ 1522-6514 ] ; 2009.
Descripteurs français
- KwdFr :
- Bactéries (métabolisme), Déchets industriels (MeSH), Dépollution biologique de l'environnement (MeSH), Dérivés du benzène (composition chimique), Dérivés du benzène (métabolisme), Microbiologie du sol (MeSH), Polluants chimiques de l'eau (composition chimique), Polluants chimiques de l'eau (métabolisme), Pétrole (MeSH), Rythme circadien (MeSH).
- MESH :
- composition chimique : Dérivés du benzène, Polluants chimiques de l'eau.
- métabolisme : Bactéries, Dérivés du benzène, Polluants chimiques de l'eau.
- Déchets industriels, Dépollution biologique de l'environnement, Microbiologie du sol, Pétrole, Rythme circadien.
English descriptors
- KwdEn :
- Bacteria (metabolism), Benzene Derivatives (chemistry), Benzene Derivatives (metabolism), Biodegradation, Environmental (MeSH), Circadian Rhythm (MeSH), Industrial Waste (MeSH), Petroleum (MeSH), Soil Microbiology (MeSH), Water Pollutants, Chemical (chemistry), Water Pollutants, Chemical (metabolism).
- MESH :
- chemical , chemistry : Benzene Derivatives, Water Pollutants, Chemical.
- metabolism : Bacteria, Benzene Derivatives, Water Pollutants, Chemical.
- Biodegradation, Environmental, Circadian Rhythm, Industrial Waste, Petroleum, Soil Microbiology.
Abstract
Volatile hydrocarbons have multiple potential fates in phytoremediation. This research investigated the relationship between biodegradation and plant uptake of BTEX compounds in laboratory and field settings. At a phytoremediation site, preliminary studies revealed minimal uptake into trees and enhanced degradation potential in the rhizosphere and in the bulk soiL Increased oxygen transport to the vadose zone caused by diurnal rise and fall of the water table was hypothesized to enhance degradation in the bulk soil. A detailed greenhouse study was then conducted to investigate potential bioremediation impacts using field-site soil and DN34 hybrid poplar trees. In rhizosphere soils, the contaminated-planted reactor had significantly higher BTEX degrader populations versus the uncontaminated-planted reactor, as was anticipated. The bulk soil in the planted-contaminated reactor had increased degrader populations than the unplanted-contaminated soil or planted-uncontaminated soil, and planting increased degradation throughout the soil profile, not just in the limited volume of rhizosphere soils. Oxygen diffusive and advective transport into reactors was modeled and calculated. Oxygen input in planted reactors was at least 3 to 5 times higher than in unplanted reactors, and increasing oxygen input lead to increased degrader populations in a linear manner. These results combined with the knowledge that high-transpiration trees draw the contaminated groundwater to the capillary fringe and the rhizosphere indicate that phytoremediation can aid microbial degradation via multiple mechanisms: increasing degrader populations, increasing oxygen input via groundwater diurnal fluctuations, and transporting contaminants to the biologically-enriched soil profile.
DOI: 10.1080/15226510802656326
PubMed: 19810352
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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This research investigated the relationship between biodegradation and plant uptake of BTEX compounds in laboratory and field settings. At a phytoremediation site, preliminary studies revealed minimal uptake into trees and enhanced degradation potential in the rhizosphere and in the bulk soiL Increased oxygen transport to the vadose zone caused by diurnal rise and fall of the water table was hypothesized to enhance degradation in the bulk soil. A detailed greenhouse study was then conducted to investigate potential bioremediation impacts using field-site soil and DN34 hybrid poplar trees. In rhizosphere soils, the contaminated-planted reactor had significantly higher BTEX degrader populations versus the uncontaminated-planted reactor, as was anticipated. The bulk soil in the planted-contaminated reactor had increased degrader populations than the unplanted-contaminated soil or planted-uncontaminated soil, and planting increased degradation throughout the soil profile, not just in the limited volume of rhizosphere soils. Oxygen diffusive and advective transport into reactors was modeled and calculated. Oxygen input in planted reactors was at least 3 to 5 times higher than in unplanted reactors, and increasing oxygen input lead to increased degrader populations in a linear manner. These results combined with the knowledge that high-transpiration trees draw the contaminated groundwater to the capillary fringe and the rhizosphere indicate that phytoremediation can aid microbial degradation via multiple mechanisms: increasing degrader populations, increasing oxygen input via groundwater diurnal fluctuations, and transporting contaminants to the biologically-enriched soil profile.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19810352</PMID><DateCompleted><Year>2009</Year><Month>10</Month><Day>27</Day></DateCompleted><DateRevised><Year>2009</Year><Month>10</Month><Day>08</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1522-6514</ISSN><JournalIssue CitedMedium="Print"><Volume>11</Volume><Issue>5</Issue><PubDate><Year>2009</Year><Month>Jul</Month></PubDate></JournalIssue><Title>International journal of phytoremediation</Title><ISOAbbreviation>Int J Phytoremediation</ISOAbbreviation></Journal><ArticleTitle>Phytoremediation of BTEX hydrocarbons: potential impacts of diurnal groundwater fluctuation on microbial degradation.</ArticleTitle><Pagination><MedlinePgn>509-23</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1080/15226510802656326</ELocationID><Abstract><AbstractText>Volatile hydrocarbons have multiple potential fates in phytoremediation. This research investigated the relationship between biodegradation and plant uptake of BTEX compounds in laboratory and field settings. At a phytoremediation site, preliminary studies revealed minimal uptake into trees and enhanced degradation potential in the rhizosphere and in the bulk soiL Increased oxygen transport to the vadose zone caused by diurnal rise and fall of the water table was hypothesized to enhance degradation in the bulk soil. A detailed greenhouse study was then conducted to investigate potential bioremediation impacts using field-site soil and DN34 hybrid poplar trees. In rhizosphere soils, the contaminated-planted reactor had significantly higher BTEX degrader populations versus the uncontaminated-planted reactor, as was anticipated. The bulk soil in the planted-contaminated reactor had increased degrader populations than the unplanted-contaminated soil or planted-uncontaminated soil, and planting increased degradation throughout the soil profile, not just in the limited volume of rhizosphere soils. Oxygen diffusive and advective transport into reactors was modeled and calculated. Oxygen input in planted reactors was at least 3 to 5 times higher than in unplanted reactors, and increasing oxygen input lead to increased degrader populations in a linear manner. These results combined with the knowledge that high-transpiration trees draw the contaminated groundwater to the capillary fringe and the rhizosphere indicate that phytoremediation can aid microbial degradation via multiple mechanisms: increasing degrader populations, increasing oxygen input via groundwater diurnal fluctuations, and transporting contaminants to the biologically-enriched soil profile.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Weishaar</LastName><ForeName>Jeff A</ForeName><Initials>JA</Initials><AffiliationInfo><Affiliation>Environmental Engineering Program, Missouri University of Science and Technology, Rolla, MO 65409-0030, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tsao</LastName><ForeName>David</ForeName><Initials>D</Initials></Author><Author ValidYN="Y"><LastName>Burken</LastName><ForeName>Joel G</ForeName><Initials>JG</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Int J Phytoremediation</MedlineTA><NlmUniqueID>101136878</NlmUniqueID><ISSNLinking>1522-6514</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D001555">Benzene Derivatives</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D007220">Industrial Waste</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010578">Petroleum</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D014874">Water Pollutants, Chemical</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001419" MajorTopicYN="N">Bacteria</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001555" MajorTopicYN="N">Benzene Derivatives</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001673" MajorTopicYN="Y">Biodegradation, Environmental</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002940" MajorTopicYN="N">Circadian Rhythm</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007220" MajorTopicYN="N">Industrial Waste</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010578" MajorTopicYN="N">Petroleum</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="N">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014874" MajorTopicYN="N">Water Pollutants, Chemical</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>10</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>10</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2009</Year><Month>10</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19810352</ArticleId><ArticleId IdType="doi">10.1080/15226510802656326</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Missouri (État)</li></region></list><tree><noCountry><name sortKey="Burken, Joel G" sort="Burken, Joel G" uniqKey="Burken J" first="Joel G" last="Burken">Joel G. Burken</name><name sortKey="Tsao, David" sort="Tsao, David" uniqKey="Tsao D" first="David" last="Tsao">David Tsao</name></noCountry><country name="États-Unis"><region name="Missouri (État)"><name sortKey="Weishaar, Jeff A" sort="Weishaar, Jeff A" uniqKey="Weishaar J" first="Jeff A" last="Weishaar">Jeff A. Weishaar</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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