Nitrate Electromigration in Sandy Soil in the Presence of Hydraulic Flow
Publication: Journal of Irrigation and Drainage Engineering
Volume 125, Issue 1
Abstract
Chemicals applied to agricultural lands inevitably move below the plant root zone and may contaminate the underlying ground-water reservoirs. Laboratory open system soil column experiments were conducted to evaluate electromigration as a process for concentrating and retaining the nitrates close to the anode in soil subjected to hydraulic flow. Electromigration was found to be an effective means for concentrating and retaining nitrate close to the anode in saturated sandy soil at low flow rates. However, for a given electrical input, the effect was reduced as the hydraulic flow rate increased, being indiscernible for higher flow rates.
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Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 125 • Issue 1 • January 1999
Pages: 7 - 11
History
Received: Feb 10, 1998
Published online: Jan 1, 1999
Published in print: Jan 1999
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