Impact of System Chemistry on Electroosmosis in Contaminated Soil

Electrobioremediation of Hydrocarbon Contaminated Soil from Patagonia Argentina

“…The lack of moisture change in experiment I is thought to be because the acidic pH increased the soil zeta potential, rapidly causing electroosmotic flow into the acidified region to reduce or even reverse [46]. By removing electrode fluid moisture content change was avoided but pH control had to be implemented using a regularly reversed current [47] and it may be that part of hydrocarbon fraction is eliminated in the fluids producing other contaminated residue.…”

Electrokinetics and soil decontamination: concepts and overview (Review)

“…The detailed description of these flow processes and the associated complicated features generated by electrochemical reactions are given by several authors [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. The use of electrokinetics in sealing leaks in geomembrane and compacted clay liners has been explained in detail by a few authors [24][25][26][27][28].…”

“…A number of important apparatuses that have been used for soil remediation by electrokinetics are mentioned here. The apparatuses currently available for the purpose of electrokinetic remediation include those developed at Louisiana State University [31,79], Lehigh University [52,80,81], University of Texas at Austin [11,82], the University of California at Berkeley [3,83], Massachusetts Institute of Technology [38,47,59], Texas A & M University [6], The Technical University of Denmark [84,85], Vanderbilt University, Nashville, Tennessee [86], Royal Institute of Technology, Stockholm, Sweden [87][88][89], University of South Carolina [58] and many others. A comprehensive review of the apparatus used in the EKD experiments has been presented by Yeung et al [6].…”

Development of electrokinetic remediation for caesium: A feasibility study of 2D electrode configuration system

“…This method has been successfully employed at laboratory scale on a range of radioactively contaminated soil and groundwater [9]. A common problem with electrokinetic removal of heavy metals is precipitation of the metal ions which has been found to occur close to the cathode, hindering the extraction process [10,11]. The generation of alkali conditions at the cathode tends to immobilise heavy metal contaminants by hydroxide precipitation.…”