Ground Water Issue Phytoremediation of Contaminated ... - CLU-IN
Ground Water Issue Phytoremediation of Contaminated ... - CLU-IN
Ground Water Issue Phytoremediation of Contaminated ... - CLU-IN
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
32<br />
Table 3. continued<br />
CONTAM<strong>IN</strong>ANT MEDIUM PROCESS CONCENTRATION 1<br />
MGP site wastes<br />
(PAHs)<br />
Chlorinated solvents<br />
Tetrachloroethene<br />
(PCE)<br />
Trichloroethene<br />
(TCE)<br />
1,1,1trichloroethane<br />
(TCA)<br />
PLANT 2<br />
RESULTS/NOTES<br />
100 mg/kg anthracene and pyrene Fescue (Festuca arundinacea Schreb.),<br />
sudangrass (Sorghum vulgare L.),<br />
switchgrass (Panicum virgatum L.), and<br />
alfalfa (Medicago sativa L.)<br />
PAH disappearance was greater in vegetated treatments than in unvegetated treatments.<br />
Soil Rhizodegradation 100 to 200 mg/kg total PAHs Alfalfa (Medicago sativa), switchgrass<br />
(Panicum virgatum), little bluegrass<br />
(Schizachyrium scoparium)<br />
Planted soils had a greater percent reduction in total and carcinogenic PAHs than unplanted soils.<br />
<strong>Water</strong> Rhiz<strong>of</strong>iltration 0.5 to 10 mg/L <strong>Water</strong>weed (Elodea canidensis), a<br />
submergent aquatic plant<br />
Soil Rhizodegradation<br />
Phytodegradation<br />
<strong>Ground</strong> water Phytodegradation<br />
Phytovolatilization<br />
<strong>Ground</strong> water Phytodegradation<br />
Rhizodegradation<br />
PCE rapidly sorbed to plant matter.<br />
Not specified. Chinese lespedeza (Lespedeza cuneata<br />
(Dumont)), a legume; a composite herb<br />
(Solidago sp.); Loblolly pine (Pinus taeda<br />
L.); soybean (Glycine max (L.) Merr., cv.<br />
Davis)<br />
REFERENCE<br />
Reilley et al., 1996<br />
Pradhan et al., 1998<br />
Nzengung et al., 1999<br />
Anderson and Walton, 1995<br />
Significantly greater TCE mineralization occurred in soil vegetated with L. cuneata, Loblolly pine, and soybean than in nonvegetated<br />
soil, but not with composite herb - Solidago sp.<br />
Average <strong>of</strong> 0.38 mM (50 mg/L) during<br />
first season and 0.11 mM (14.5 mg/L)<br />
during second season.<br />
Hybrid poplar (Populus trichocarpa × P.<br />
deltoides)<br />
Newman et al., 1999<br />
Trees removed over 99% <strong>of</strong> added TCE. TCE transpiration was detected by leaf bag gas analysis, but not detected by openpath<br />
Fourier transform infrared spectroscopy. During second and third years, less than 9% was transpired. TCE was found in<br />
leaves, branches, trunks, and roots (and was generally highest in branches). Low levels <strong>of</strong> metabolites and reductive<br />
dechlorination products were found in plant tissues.<br />
Not given. Hybrid poplar Newman et al., 1998<br />
In laboratory tests, hybrid poplars could take up TCA. In the field application, an underground irrigation system applied<br />
contaminated ground water to the tree roots.
Change language