Laboratory Experiment on Electrokinetic Remediation of Soil

2011 ◽  
Vol 88 (8) ◽  
pp. 1126-1129 ◽  
Author(s):  
Alya H. Elsayed-Ali ◽  
Tarek Abdel-Fattah ◽  
Hani E. Elsayed-Ali
Keyword(s):  
Laboratory Experiment ◽  
Electrokinetic Remediation ◽  
Remediation Of Soil

scholarly journals Chemical remediation technologies

2021 ◽  
Vol 19 (1) ◽  
pp. 1-15
Author(s):  
Tijana Jovanovic ◽  
Milica Petrovic ◽  
Milos Kostic ◽  
Danijela Bojic ◽  
Aleksandar Bojic
Keyword(s):  
Soil Washing ◽  
Soil Surface ◽  
Cost Effective ◽  
Chemical Oxidation ◽  
Electrokinetic Remediation ◽  
Appropriate Technology ◽  
Contaminated Sites ◽  
Site Conditions ◽  
Efficient Technology ◽  
Remediation Of Soil

Environmental pollution remains one of the most serious world problems. Great efforts are made to limit the release of harmful compounds into the environment, and a variety of methods for remediation of soil, surface water, and groundwater have been developed over the years. Chemical remediation technologies are of great interest since they can remove and degrade pollutants in contaminated sites. This paper focuses on several chemical remediation technologies, such as precipitation, flocculation, adsorption and ion exchange, chemical oxidation, soil washing and flushing, and electrokinetic remediation. Remediation technologies are almost always combined one with another, although they can be used separately. Choosing an appropriate technology will depend on the type of the pollutants and site conditions, and it should be done in such a manner so that the most cost-effective and efficient technology is chosen. Even though some of the technologies are used full-scale, research should be focused on enhancing the existing, and developing new remediation technologies.

Electrokinetic remediation of soil containing Cr(VI) by photovoltaic solar panels and a DC-DC converter

2014 ◽  
Vol 90 (4) ◽  
pp. 693-700 ◽  
Author(s):  
Shunxi Zhang ◽  
Jian Zhang ◽  
Xianzhong Cheng ◽  
Yunjun Mei ◽  
Chun Hu ◽  
...  
Keyword(s):  
Electrokinetic Remediation ◽  
Solar Panels ◽  
Remediation Of Soil

Electrokinetic Remediation of Soil Contaminated with Diesel Oil Using EDTA–Cosolvent Solutions

2009 ◽  
Vol 44 (10) ◽  
pp. 2437-2454 ◽  
Author(s):  
Hyoyeol Han ◽  
You-Jin Lee ◽  
Seong-Hye Kim ◽  
Ji-Won Yang
Keyword(s):  
Diesel Oil ◽  
Electrokinetic Remediation ◽  
Remediation Of Soil

scholarly journals Application of Biosurfactants and Pulsating Electrode Configurations as Potential Enhancers for Electrokinetic Remediation of Petrochemical Contaminated Soil

2020 ◽  
Vol 12 (14) ◽  
pp. 5613
Author(s):  
Brian Gidudu ◽  
Evans M. Nkhalambayausi Chirwa
Keyword(s):  
Electroosmotic Flow ◽  
Current Flow ◽  
Oil Extraction ◽  
Electrokinetic Remediation ◽  
High Current ◽  
Improved Method ◽  
Degrading Bacteria ◽  
Fixed Electrode ◽  
Ph Conditions ◽  
Remediation Of Soil

The remediation of soil contaminated with petrochemicals using conventional methods is very difficult because of the complex emulsions formed by solids, oil, and water. Electrokinetic remediation has of recent shown promising potential in the removal of organics from contaminated media as calls for further improvement of the technology are still made. This work investigated the performance of electrokinetic remediation of soil contaminated with petrochemicals by applying fixed electrode configurations and continuous approaching electrode configurations. This was done in combination with bioremediation by inoculating hydrocarbon degrading bacteria and biosurfactants with the aim of obtaining an improved method of remediation. The results obtained show that the biosurfactant produced by the hydrocarbon degrading bacteria Pseudomonas aeruginosa was able to enhance oil extraction to 74.72 ± 2.87%, 57.375 ± 3.75%, and 46.2 ± 4.39% for 185 mm fixed electrodes, 335-260-185 mm continuous approaching electrodes, and 335 mm fixed electrode configurations, respectively. By maintaining high current flow, the 335-260-185 mm continuous approaching electrodes configuration enhanced electroosmotic flow (EOF) on every event of electrodes movement. The fixed electrode configuration of 185 mm provided amiable pH conditions for bacterial growth by allowing quick neutrality of the pH due to high EOF as compared to the 335 mm fixed electrodes configuration. After 240 h, the carbon content in the soil was reduced from 0.428 ± 0.11 mg of carbon/mg of the soil to 0.103 ± 0.005, 0.11355 ± 0.0006, and 0.1309 ± 0.004 for 185 mm, 335-260-185 mm, and 335 mm, respectively. The application of biosurfactants and continuous approaching electrodes reduced the energy expenditure of electrokinetic remediation by enhancing the decontamination process with respect to time.

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