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Article: Phytoremediation of selenium laden soils: a new technology.
- Article from:
- Journal of Soil and Water Conservation
- Article date:
- November 1, 1997
- Author:
CopyrightCOPYRIGHT 1997 Soil & Water Conservation Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Selenium (Se) occurs naturally in many agricultural soils on the west side of the San Joaquin Valley in central California as the result of weathering of Cretaceous shales and soils (McNeal and Balistrieri 1989). Agricultural irrigation of these alkaline soils contributed to the solubilization of naturally-occurring Se, resulting in high concentrations of Se in subsurface agricultural drainage water (Fujii et al. 1988). Tile drains, installed several meters below land surface for salt management in the soil, diverted these Seladen effluents to sumps that flow into collective drains. In California, this saline inflow from growers in the San Joaquin Valley was eventually ...
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