Soil remediation at coastal plains with the help of DC Resistivity Method

Indexed In

Volume 176 / April 2025

Authors:

Buse ÖZENTÜRK, Öznur KARACA, Emin Uğur ULUGERGERLİ

Keywords:

Saline Soil, Pollution, Electrokinetic Remediation, Electrode, Corrosion.

Abstract:

The coastline of the Dardanos, a district of Çanakkale, Türkiye, suffers from saltwater intrusion due to excessive extraction of groundwater for domestic usage and also agricultural activities. Thus, the salinity level increased, and much of the land became unusable. The electrokinetic remediation method was employed to reduce the salinity level in the soil samples in laboratory conditions. The sample used in remediation is silty agricultural soil, with pH value and electrical conductivity (EC) of which are 8.33 and 1282 μS/cm respectively. In the lab-scale experiments, three different types of electrodes, aluminum, copper, and galvanized steel, were used in the tests. For each type of metal, electrode pairs were placed in the soil that was filled in a plastic container. Current variation was monitored while 1 VDC/cm was applied to electrodes. Average electrical conductivity reduces to 13.5%. As a side effect, all electrodes suffered from heavy corrosion which may be prevented by using anti-corrosion additives to reduce damage for future applications.

DOI:

10.19111/bulletinofmre.1612620