The remediation performance of a specific electrokinetics integrated with zero-valent metals for perchloroethylene contaminated soils

Remediation of Tetrachloroethylene -Contaminated Soil with Zero Valent Iron Utilizing Electrokinetic Reactors

“…Comparison of the electrical current during 2-10 days in four experiments indicates that tests with PRB had higher currents than tests without (T1), suggesting a slight promotion on the electrical current with the presence of PRB. The variation of current is in agreement with that which was reported by Chang and Cheng (Chang and Cheng., 2006), whereas the EK-ZVM test had a higher electrical current than the EK test, due to the higher conductivity of pore solution and lower resistance of high electric conductive ZVM (Chang and Cheng., 2006;Wan et al, 2010).…”

Enhancement of electrokinetic remediation of hyper-Cr(VI) contaminated clay by zero-valent iron

“…Although EK remediation has been extensively studied over the last two decades, limited data are available to describe the use of zero-valent iron (ZVI) wall to incorporate into this process [19,20]. ZVI aggregate is the most common reducing materials used in permeable reactive wall to remove certain persistent organic and inorganic contaminants such as dense of non-aqueous phase liquids (DNAPLs) and Cr(VI) [21][22][23][24][25][26][27].…”

“…ZVI aggregate is the most common reducing materials used in permeable reactive wall to remove certain persistent organic and inorganic contaminants such as dense of non-aqueous phase liquids (DNAPLs) and Cr(VI) [21][22][23][24][25][26][27]. Most recently, Chang and Cheng [20] performed the combination of EK and ZVI for remediation of the perchlorethylene contaminated soil and the results were promising. In the past relevant EK studies [11][12][13][14][15][16][17][18][19], Cr(VI) contamination in the tested soil was low.…”

Advances in Electrokinetic Remediation for the Removal of Organic Contaminants in Soils

“…In the case of organic contaminants, Chang and Cheng [55] applied the combination of PRB with electrokinetics to remediate a soil specimen contaminated with perchloroethilene. The experiments were carried out at a constant voltage drop of 1 v/cm and sodium carbonate 0.01 M was used as processing fluid to avoid the formation of an acid front in the anode.…”