Optimization of electroosmotic flow to enhance the removal of contaminants from low?permeable soils

Electrokinetic is an effective method for the extraction of contaminants from low-permeable soils. This work examines influence Ca+2 ions on electroosmotic flow and effect electric potential, current, pH variations removal Pb2+, Na+, Cl? artificially contaminated soil during vertical electrokinetic experiments. The DC field 1 Vcm?1 was applied across specimen via steel mesh electrodes 24, 48, 72 h experiment. In this work, cell used to avoid deposition Na+ Pb +2 near surface after treatment. making it even less permeable. results show that formation acidic alkaline environments in specimens affects transport ionic species by reducing electromigration water flow. enhancement electroosmosis using as electrolyte increased efficiency Pb2+ (i.e., 41%) 82%) instead 69%) due high 81 mL) anode cathode. For relatively low 19 mL), 76%) higher than 27%) 44%) ions. demonstrated energy consumption with treatment time were first 24