Electrochemical Remediation Technologies for Polluted Soils, Sediments and Groundwater 2009
DOI: 10.1002/9780470523650.ch23
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Coupled Electrokinetic–Permeable Reactive Barriers

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Cited by 11 publications
(6 citation statements)
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“…However, the buffer addition approach could be an inconvenience because of the expected increase in the current density and excessive soil heating [5]. Thus, the application of the reversion of the electric field is not new, i.e., it is a well-known technique, and the results obtained in our study support their relevance and suitability to be combined with biological processes by the inconveniences in the conditions for the right performance of the microbial activity [6,8,30]. However, an accurate surfactant distribution was obtained over the entire soil, which has contributed to the success of the treatment: the EK-PRB technology treating non-polar pollutants needs the flushing fluids-containing surfactant to be efficient because these species assist in the transport of such pollutants (i.e., diesel oil) to the barrier [19].…”
Section: Resultssupporting
confidence: 56%
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“…However, the buffer addition approach could be an inconvenience because of the expected increase in the current density and excessive soil heating [5]. Thus, the application of the reversion of the electric field is not new, i.e., it is a well-known technique, and the results obtained in our study support their relevance and suitability to be combined with biological processes by the inconveniences in the conditions for the right performance of the microbial activity [6,8,30]. However, an accurate surfactant distribution was obtained over the entire soil, which has contributed to the success of the treatment: the EK-PRB technology treating non-polar pollutants needs the flushing fluids-containing surfactant to be efficient because these species assist in the transport of such pollutants (i.e., diesel oil) to the barrier [19].…”
Section: Resultssupporting
confidence: 56%
“…To improve the remediation efficiency of the in-situ EK technology, there has been recent increased interest in combining EK methods with other conventional soil remediation technologies [7]. Particularly, one option is the combination of permeable reactive barriers (PRB) and EK treatments [8]. Generally, PRBs are the artificial media of a reactive material that is located in the soil in the direction of groundwater flow, so that the PRB intercepts the pollution plume and retains or eliminates the pollutants [9].…”
Section: Introductionmentioning
confidence: 99%
“…To prevent serious environmental problems under accidental discharges of these species, it is very important to take rapid actions against accidental discharges of hazardous species using efficient technologies that help to rapidly remediate the soil (Pazos et al, 2010). Electrokinetic (EK) remediation integrated with permeable reactive barriers (PRBs) has been investigated by several authors in recent years (Palmer, 2001;Choi et al, 2007;Chung and Lee, 2007;Weng, 2009;Mena et al, 2015), and this technology appears to be a very promising alternative. This technological approach was implemented primarily because EK also enables the use of PRB in low-permeability soils (Hayes and Marcus, 1997).…”
Section: Introductionmentioning
confidence: 99%
“…The most extensively used material is granular zerovalent iron (ZVI), which is used as a reducing agent. , However, other materials have also been used. Weng, and recently Yeung and Gu, reported extensive reviews about the current research that couples EK and PRB to remediate soils, including different pollutants and PRB materials. For instance, heavy metals such as As, Cr, Cd, and Ni have been removed from soils by coupling EK/PRB using ZVI, , atomising slag, carbonized food waste, calcined hydrotalcite, and activated carbon .…”
Section: Introductionmentioning
confidence: 99%