Electro-Osmotic Removal of Nitrates from Soils

by George Cairo, Univ of Arizona, Tucson, United States,
Dennis L. Larson, Univ of Arizona, Tucson, United States,
Donald C. Slack, Univ of Arizona, Tucson, United States,

Document Type: Proceeding Paper

Part of: Management of Irrigation and Drainage Systems: Integrated Perspectives


Nitrate migration to ground and surface waters is a serious U.S. contamination threat. Electro-osmosis may be a more effective means for soil reclamation than leaching or chemical treatment. A field lysimeter was constructed to evaluate use of electro-osmosis to concentrate nitrates in and remove nitrates from soils. Tests are being conducted using different electrode materials and electrical voltages.

Subject Headings: Soil pollution | Osmosis | Nitrates | Soil treatment | Chemical treatment | Measuring instruments | Surface water | Leaching

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