Ground Water Issue Phytoremediation of Contaminated ... - CLU-IN
Ground Water Issue Phytoremediation of Contaminated ... - CLU-IN
Ground Water Issue Phytoremediation of Contaminated ... - CLU-IN
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
26<br />
Table 1. continued<br />
CONTAM<strong>IN</strong>ANT MEDIUM PROCESS CONCENTRATION 1<br />
PLANT 2<br />
RESULTS/NOTES<br />
Thallium Soil Phytoextraction 0.321 to 18 mg/kg Winter rape (Brassica napus L.),<br />
winter wheat, corn, cabbage, leek<br />
Zinc Soil Phytoextraction 124 to 444 mg/kg Zn (other metals were<br />
also present at lesser concentrations).<br />
REFERENCE<br />
Tremel et al., 1997<br />
The highest average Tl concentration was 20 mg/kg in rape shoots, on the highest Tl-concentration soil. On a dry weight<br />
basis, the maximum accumulation in rape was 2.5x the concentration <strong>of</strong> Tl in the soil.<br />
Seven species <strong>of</strong> metals<br />
hyperaccumulators<br />
McGrath et al., 2000<br />
Thlaspi caerulescens and Cardaminopsis halleri accumulated high levels <strong>of</strong> Zn, averaging 1232 to 3472 mg/kg. These<br />
species removed 4.6 to 17.6 kg Zn/ha per year.<br />
Phytostabilization Up to 43,750 mg/kg in mine rock waste<br />
material.<br />
Native grasses, tame grasses, leguminous<br />
forbs.<br />
Pierzynski et al., 1994<br />
Mycorrhizae and organic amendments in soil enhanced plant growth. Some uptake <strong>of</strong> Zn by plants occurred.<br />
<strong>Water</strong> Rhiz<strong>of</strong>iltration 100 mg/L in hydroponic solution Brassica juncea Dushenkov et al., 1995<br />
Over 13,000 g/g Zn accumulated in roots after 24 hours. Some Zn may have been translocated into shoots and root exudates<br />
may have precipitated Zn from solution.<br />
1 Concentration units are given as they were reported in the original reference. Conversions <strong>of</strong> molar concentrations have been added.<br />
2 Plant names are given as they were reported in the original reference.