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Phytoremediation of trichloroethene (TCE) using cottonwood trees

Battelle Memorial Institute International In Situ and On-Site Bioreclamation Symposium Proceedings

By:
, ,
Edited by:
Alleman B.C.Leeson A.

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Abstract

The ability of cottonwood trees for phytoremediation was studied on aerobic shallow groundwater containing TCE. Cottonwood trees were planted over a 0.2-ha area at the Naval Air Station at Fort Worth, TX, in April 1996. Two years later, groundwater chemistry in the terrace alluvial aquifer was changing locally. Dissolved oxygen (DO) concentrations declined at the southern end of the whip plantings while total iron concentration increased. Groundwater chemistry near a mature cottonwood tree ~ 60 m from the caliper trees was different from that observed elsewhere. Anaerobic conditions near the mature cottonwood tree were evident. Reductive dechlorination of TCE occurred in the aquifer near the mature tree, as demonstrated by very small concentration of TCE in groundwater, a small median ratio of TCE to the degradation product cis-1,2-DCE and the presence of vinyl chloride.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Phytoremediation of trichloroethene (TCE) using cottonwood trees
Series title:
Battelle Memorial Institute International In Situ and On-Site Bioreclamation Symposium Proceedings
Volume
5
Year Published:
1999
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Conference Title:
Proceedings of the 1999 5th International In Situ and On-Site Bioremediation Symposium
Conference Location:
San Diego, CA
Conference Date:
19 April 1999 through 22 April 1999