Experiences With Field Applications of Electrokinetic Remediation

Lageman, Reinout; Pool, Wiebe

doi:10.1002/9780470523650.ch33

Cited by 8 publications

(4 citation statements)

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“…porosity, conductivity, and resistance. The length among electrodes of both equal and opposite charges depends on site-specific conditions but is generally considered at a distance of 1.5 or 2.0 m (Lageman & Pool, 2009).…”

Section: Spacing Of Electrodesmentioning

confidence: 99%

“…These are needed to efficiently calculate the distance between electrodes and determine the amount energy for ions to migrate through the soil. The calculations are described in Lageman and Pool (2009).…”

Section: Spacing Of Electrodesmentioning

confidence: 99%

“…However, authors Černík et al (2020), Černíková et al (2020), andCzinnerová et al (2020) did not use any buffer solution during their investigations, when they focused on integration of electrokinetic treatment coupled with nZVI. A special electrolyte system is used to improve conditions of physical parameters (pH, Eh) around the electrodes, and in order to collect the contaminants around the electrodes (Lageman & Pool, 2009). The amendment of buffer solution seems to be effective also by metal degradation process (Gill et al, 2000;U.S.…”

Section: Evaluation Of Physico-chemical Parametres In Field Applicationsmentioning

confidence: 99%

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Electroremediation in low-hydraulic conductivity zones – current stage of knowledge and small-scale laboratory experiment

Čičáková¹,

Tóth²,

Horváthová³

et al. 2022

Miner Slov

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Over past decades, the rapid increase of industrial activities has caused vast environmental pollution by different types of contaminants. Groundwater sources belong to the most vulnerable parts of the environment. Zones, especially aquifers with low hydraulic-conductivity (mainly clayey, silty soils with gravels) represent a considerable challenge for scientists to remediate due to their low transmissivity values. Conventional remediation methods (i.e. pump and treat) are ineffective in such conditions; therefore, new and effective methods are required. Electroremediation appears to be a suitable technique in aquifers with low-hydraulic conductivity. Although, this method has been known for decades, there is still a lack of field applications. This article summarizes the current stage of knowledge in electrokinetic remediation of contaminants (e.g. hydrocarbons, metals) in low-hydraulic conductivity aquifers and presents information from certain available field application studies. The aim was to focus on optimizing and enhancing approaches in the electroremediation method and summarily bring useful information to future researchers in their practical utilization. Furthermore, a small-scale laboratory experiment was conducted to prove the efficiency of electroremediation of chlorinated hydrocarbons in groundwater from the model locality (environmental burden), intended for large-scale pilot decontamination by this approach.

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Section: Spacing Of Electrodesmentioning

confidence: 99%

Section: Spacing Of Electrodesmentioning

confidence: 99%

Section: Evaluation Of Physico-chemical Parametres In Field Applicationsmentioning

confidence: 99%

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Electroremediation in low-hydraulic conductivity zones – current stage of knowledge and small-scale laboratory experiment

Čičáková¹,

Tóth²,

Horváthová³

et al. 2022

Miner Slov

View full text Add to dashboard Cite

show abstract

“…Under the effect of DC field sodium and chloride ions which are major components of seawater are transported toward barrier and get trapped and deposited near to opposite electrode while fresh water passes toward other side of barrier. The deposited ions can be removed from ground periodically [13]. Electrokinetic remediation method is cost effective, easy to install, and operate [14,15].…”

Section: Electrokinetic Remediation For Saltwater Intrusionmentioning

confidence: 99%

Prevention of Saltwater Intrusion: A Laboratory-Scale Study on Electrokinetic Remediation

Sutar

Rotte

2021

Lecture Notes in Civil Engineering

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Increased population along with improvement of living standard is forcing water demand to rise sharply in past few decades [1]. In coastal areas, for fulfilling the domestic, agricultural, industrial, and tourist water needs, groundwater is mostly overexploited [2]. Naturally fresh water flows from aquifers toward the sea and ground water flows from high level to low level, and this naturally occurring process prevents saltwater intrusion into fresh groundwater aquifers [3]. This phenomenon may get reversed due to long term climate change, sea level change, and tidal intensity fluctuations. Manmade activity like excessive pumping of fresh groundwater in coastal areas causes up-coning of transition zone as shown in Fig. 1, which has high impact on sea water intrusion. Saltwater intrusion can lower the potability of water and makes it difficult to use for other purposes like agricultural or industrial use [4]. Research has been going on to find out measures of controlling saltwater intrusion for protection of freshwater sources. The primary aim of these methods is to increase freshwater flow and reduce saltwater flow [5].

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Electrokinetic Remediation Technique: An Integrated Approach to Finding New Strategies for Restoration of Saline Soil and to Control Seawater Intrusion

2014

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Many applications of electrokinetic remediation have focused on the removal of heavy metals. However, the application of electrokinetic technology in salt removal from contaminated soils and groundwater has not been extensively explored. Given the current global challenge and the impact of soil and groundwater salinity, it is tempting to suggest that the research community should apply this technology to generate in‐depth knowledge for determining the feasibility and efficiency of electrokinetic remediation in salt removal, particularly in addressing seawater intrusion in coastal aquifers, which is creating growing challenges in the freshwater supply, mainly in coastal and arid regions, in view of growing populations, economic and industrial growth, and climate change. This Review shows that there is a need to begin formulating a knowledge base about categories of materials, efficiencies, and limitations. Furthermore, the viability of this technology in the real field suggests a need to gain more insight into electrokinetic applications in this area. The versatility of electrokinetic remediation in different settings is demonstrated in this Review, as is its capability to address diverse remediation challenges. The available literature is critically assessed; novel and improved electrokinetic remediation and the important trends in this field are outlined. The Review aims to summarize the evolution and current status of electrokinetic remediation research with a view of starting a debate around the possibility of applying it as a pretreatment mechanism to control seawater intrusion.

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Experiences With Field Applications of Electrokinetic Remediation

Cited by 8 publications

References 0 publications

Electroremediation in low-hydraulic conductivity zones – current stage of knowledge and small-scale laboratory experiment

Electroremediation in low-hydraulic conductivity zones – current stage of knowledge and small-scale laboratory experiment

Prevention of Saltwater Intrusion: A Laboratory-Scale Study on Electrokinetic Remediation

Electrokinetic Remediation Technique: An Integrated Approach to Finding New Strategies for Restoration of Saline Soil and to Control Seawater Intrusion

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