Nitrate Electromigration in Sandy Soil: Closed System Response

Abstract

Contamination of surface and subsurface waters has become a major problem related to agricultural practices. Nitrate, one of the principal plant fertilizers, is the chemical having the greatest effect. This research utilized closed system laboratory experiments to evaluate the effectiveness of an electrokinetic process in concentrating and retaining nitrates close to the anode and studied the effect of selected electrokinetic system design parameters on the performance of the process. The tests demonstrated that an electrokinetic process can effectively concentrate and retain nitrate close to the anode in saturated sandy soil.