Electrokinetic Remediation of Contaminated Dredged Sediment

2008 ◽  
pp. 254-254-14
Author(s):  
KR Reddy ◽  
PR Ala
Keyword(s):  
Electrokinetic Remediation ◽  
Dredged Sediment

Electrokinetic Remediation of Contaminated Dredged Sediment

2006 ◽  
Vol 3 (6) ◽  
pp. 13344 ◽  
Author(s):  
KR Reddy ◽  
PR Ala
Keyword(s):  
Electrokinetic Remediation ◽  
Dredged Sediment

Electrokinetic Remediation for the Removal of Organic Waste in Soil and Sediments

2021 ◽  
pp. 453-477
Author(s):  
S.M.P.A Koliyabandara ◽  
Chamika Siriwardhana ◽  
Sakuni M. De Silva ◽  
Janitha Walpita ◽  
Asitha T. Cooray
Keyword(s):  
Organic Waste ◽  
Electrokinetic Remediation

scholarly journals Enhanced Electrokinetic Remediation for the Removal of Heavy Metals from Contaminated Soils

2021 ◽  
Vol 11 (4) ◽  
pp. 1799
Author(s):  
Claudio Cameselle ◽  
Susana Gouveia ◽  
Adrian Cabo
Keyword(s):  
Heavy Metals ◽  
Citric Acid ◽  
Organic Acids ◽  
Contaminated Soils ◽  
Electrokinetic Remediation ◽  
Deionized Water ◽  
Soil Specimen ◽  
Removal Of Heavy Metals ◽  
Ph Conditions ◽  
Neutral Metal

The electrokinetic remediation of an agricultural soil contaminated with heavy metals was studied using organic acids as facilitating agents. The unenhanced electrokinetic treatment using deionized water as processing fluid did not show any significant mobilization and removal of heavy metals due to the low solubilization of metals and precipitation at high pH conditions close to the cathode. EDTA and citric acid 0.1 M were used as facilitating agents to favor the dissolution and transportation of metals. The organic acids were added to the catholyte and penetrated into the soil specimen by electromigration. EDTA formed negatively charged complexes. Citric acid formed neutral metal complexes in the soil pH conditions (pH = 2–4). Citric acid was much more effective in the dissolution and transportation out of the soil specimen of complexed metals. In order to enhance the removal of metals, the concentration of citric acid was increased up to 0.5 M, resulting in the removal of 78.7% of Cd, 78.6% of Co, 72.5% of Cu, 73.3% of Zn, 11.8% of Cr and 9.8% of Pb.

Towards the application of electrokinetic remediation for nuclear site decommissioning

2021 ◽  
Vol 413 ◽  
pp. 125274
Author(s):  
Jamie M. Purkis ◽  
Phil E. Warwick ◽  
James Graham ◽  
Shaun D. Hemming ◽  
Andrew B. Cundy
Keyword(s):  
Electrokinetic Remediation ◽  
Nuclear Site

Electrokinetic Remediation of Dredged Contaminated Sediments

2021 ◽  
pp. 99-139
Author(s):  
Kristine B. Pedersen ◽  
Ahmed Benamar ◽  
Mohamed T. Ammami ◽  
Florence Portet‐Koltalo ◽  
Gunvor M. Kirkelund
Keyword(s):  
Electrokinetic Remediation ◽  
Contaminated Sediments

Removal of heavy metal from soil and groundwater by in-situ electrokinetic remediation

2000 ◽  
Vol 42 (7-8) ◽  
pp. 335-343 ◽  
Author(s):  
S. Shiba ◽  
S. Hino ◽  
Y. Hirata ◽  
T. Seno
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Electric Potential ◽  
Potential Gradient ◽  
Electrokinetic Remediation ◽  
Contaminated Aquifer ◽  
Physico Chemical ◽  
Operational Variables ◽  
Mass Transport Process

The operational variables of electrokinetic remediation have not been cleared yet, because this method is relatively new and is an innovative technique in the aquifer remediation. In order to investigate the operational variables of the electrokinetic remediation, a mathematical model has been constructed based on the physico chemical mass transport process of heavy metals in pore water of contaminated aquifer. The transport of the heavy metals is driven not only by the hydraulic flow due to the injection of the purge water but also by the electromigration due to the application of the electric potential gradient. The electric potential between anode and cathode is the important operational variable for the electrokinetic remediation. From the numerical simulations with use of this model it is confirmed that the remediation starts from the up stream anode and gradually the heavy metal is transported to the down stream cathode and drawn out through the purge water.

Enhancement of electrokinetic remediation of arsenic spiked soil by chemical reagents

2008 ◽  
Vol 152 (1) ◽  
pp. 309-315 ◽  
Author(s):  
Ching Yuan ◽  
Tzu-Shing Chiang
Keyword(s):  
Electrokinetic Remediation ◽  
Chemical Reagents ◽  
Spiked Soil

Release behavior of heavy metals during treatment of dredged sediment by microwave-assisted hydrogen peroxide oxidation

2014 ◽  
Vol 258 ◽  
pp. 334-340 ◽  
Author(s):  
Lele Wang ◽  
Xingzhong Yuan ◽  
Hua Zhong ◽  
Hou Wang ◽  
Zhibin Wu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Hydrogen Peroxide ◽  
Release Behavior ◽  
Peroxide Oxidation ◽  
Dredged Sediment ◽  
Microwave Assisted ◽  
Hydrogen Peroxide Oxidation
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