Use of Hydraulic Pressure–Improved Electrokinetic Technique to Enhance the Efficiencies of the Remediation of PCP-Contaminated Soil

Abstract

This investigation examines use of the electrokinetic (EK) technique in the remediation of low-permeability soil that is contaminated with pentachlorophenol (PCP). The EK system, which includes an electrolyte injection system, improves the efficiency of removal and the degradation of PCP, and performs dechlorination. Experimental results reveal that the species of electrolyte influences the generation of the electric current, the pH of the electrolyte, the pH of the soil, and the rate of electroosmotic flow (EOF). The latter influences the efficiency of remediation of the contaminated soil. Following 72 h of treatment, the overall PCP removal rates that were achieved using NaOH, tap water, and