Electrical Conductivity Breakthrough Curve of Soil Column with Residual Diesel Fuel

Abstract

In order to demonstrate the applicability of bulk electrical conductivity breakthrough curves for estimating solute transport in soil with residual diesel fuel, electrical conductivity breakthrough curves on column test was investigated. In addition, the electrical conductivity breakthrough curves were compared with Mobile-Immobile Model to verify the amount of solute in the immobile fraction of the pore volume. Changes in the electrical conductivity represented as a relative parameter with time gives information about solute transport in both clean saturated soils and saturated soils with residual diesel fuel. This illustrates the advantage of electrical conductivity BTC to monitor solute concentration continuously with time based on instantaneous electrical measurements. Electrical conductivity BTCs can provide an effective means of qualitative monitoring on solute transport with longitudinal direction of transport. addition, the electrical conductivity breakthrough curves were compared with Mobile-Immobile Model to verify the amount of solute in the immobile fraction of the pore volume. Changes in the electrical conductivity represented as a relative parameter with time gives information about solute transport in both clean saturated soils and saturated soils with residual diesel fuel. This illustrates the advantage of electrical conductivity BTC to monitor solute concentration continuously with time based on instantaneous electrical measurements. Electrical conductivity BTCs can provide an effective means of qualitative monitoring on solute transport with longitudinal direction of transport.