Separation Science and Technology, Vol.44, No.10, 2284-2303, 2009
Enhancement with Carbon Nanotube Barrier on 1,2-Dichlorobenzene Removal from Soil by Surfactant-Assisted Electrokinetic (SAEK) Process - The Effect of Processing Fluid
A surfactant assisted electrokinetic remediation (SAEK) process coupled with CNT barrier has been investigated for 1,2 DCB removal under potential gradient of 2.0V/cm. A better removal of 1,2 DCB up to 75.5% was achieved in EK/CNT system with SDS as processing fluid. Lower removal was found in system with PANNOX 110, which might be due to low affinity of 1,2 DCB in PANNOX 110 micelle. Removal of 1,2 DCB in EK/CNT system was mainly contributed by surface sorption on CNT rather than by EK process. Among the electrical removal mechanisms, electrophoresis became more critical with the surfactant as processing fluid.
Keywords:Carbon nanotube;dichlorobenzene;electrokinetic;permeable barrier;soil remediation;surfactant