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Phytoremediation of MTBE with hybrid poplar trees.
Int J Phytoremediation. 2004; 6(2):157-67.IJ

Abstract

This research investigates the fate and transport of methyl tert-butyl ether (MTBE) in phytoremediation, particularly the uptake and volatilization of MTBE in lab-scale hydroponic systems. The research reveals that MTBE was taken up by hybrid poplar cuttings and volatilized to the atmosphere. Volatilization of MTBE occurred through both stems and leaves. The concentration of MTBE in the transpiration stream declined exponentially with height, indicating that the uptake and volatilization along the stems are an important removal mechanism of MTBE in phytoremediation. Volatilization, via diffusion from the stems, has not been directly measured previously. No volatile MTBE metabolites were detected; however, mass balance closure and metabolite detection were not primary objectives of this study. The greatest amount of MTBE in plant biomass was associated with the woody stems from the previous year's growth, owing in part to the large biomass of stems. MTBE in the plant tissues appears to reach a steady state concentration and there does not appear to be an accumulation process that could lead to highly elevated concentrations relative to the groundwater source.

Authors+Show Affiliations

Ma X
Department of Civil, Environmental, and Architectural Engineering, University of Missouri--Rolla, Rolla, Missouri 65409, USA.
Richter AR
No affiliation info available
Albers S
No affiliation info available
Burken JG
No affiliation info available

MeSH

Biodegradation, EnvironmentalHumansMethyl EthersPlant LeavesPlant RootsPlant StemsPopulusVolatilizationWater Pollutants, Chemical

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

15328981

Citation

Ma, Xingmao, et al. "Phytoremediation of MTBE With Hybrid Poplar Trees." International Journal of Phytoremediation, vol. 6, no. 2, 2004, pp. 157-67.
Ma X, Richter AR, Albers S, et al. Phytoremediation of MTBE with hybrid poplar trees. Int J Phytoremediation. 2004;6(2):157-67.
Ma, X., Richter, A. R., Albers, S., & Burken, J. G. (2004). Phytoremediation of MTBE with hybrid poplar trees. International Journal of Phytoremediation, 6(2), 157-67.
Ma X, et al. Phytoremediation of MTBE With Hybrid Poplar Trees. Int J Phytoremediation. 2004;6(2):157-67. PubMed PMID: 15328981.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phytoremediation of MTBE with hybrid poplar trees. AU - Ma,Xingmao, AU - Richter,Andrew R, AU - Albers,Sarah, AU - Burken,Joel G, PY - 2004/8/27/pubmed PY - 2004/9/15/medline PY - 2004/8/27/entrez SP - 157 EP - 67 JF - International journal of phytoremediation JO - Int J Phytoremediation VL - 6 IS - 2 N2 - This research investigates the fate and transport of methyl tert-butyl ether (MTBE) in phytoremediation, particularly the uptake and volatilization of MTBE in lab-scale hydroponic systems. The research reveals that MTBE was taken up by hybrid poplar cuttings and volatilized to the atmosphere. Volatilization of MTBE occurred through both stems and leaves. The concentration of MTBE in the transpiration stream declined exponentially with height, indicating that the uptake and volatilization along the stems are an important removal mechanism of MTBE in phytoremediation. Volatilization, via diffusion from the stems, has not been directly measured previously. No volatile MTBE metabolites were detected; however, mass balance closure and metabolite detection were not primary objectives of this study. The greatest amount of MTBE in plant biomass was associated with the woody stems from the previous year's growth, owing in part to the large biomass of stems. MTBE in the plant tissues appears to reach a steady state concentration and there does not appear to be an accumulation process that could lead to highly elevated concentrations relative to the groundwater source. SN - 1522-6514 UR - https://www.unboundmedicine.com/medline/citation/15328981/Phytoremediation_of_MTBE_with_hybrid_poplar_trees_ DB - PRIME DP - Unbound Medicine ER -