Enhancement Solution to Improve Remediation of Soil Contaminated with Lead by Electrical Field

  • Ayad Abd Al-hamza Faisal, Ass. Prof. Dr. College of Engineering-University of Baghdad
  • Ibtihal Tarik Rashid College of Engineering-University of Baghdad
Keywords: lead, Electro-Kinetic, Purging solutions, injection wells, enhancement.

Abstract

A laboratory investigation of six different tests were conducted on silty clay soil spiked with lead in concentrations of 1500 mg/kg. A constant DC voltage gradient of 1 V/cm was applied for all these tests with duration of 7 days remediation process for each test. Different purging solutions and addition configurations, i.e. injection wells, were investigated experimentally to enhance the removal of lead from Iraqi soil during electro-kinetic remediation process. The experimental results showed that the overall removal efficiency of lead for tests conducted with distilled water, 0.1 M acetic acid, 0.2 M EDTA and 1 M  ammonium citrate as the purging solutions were equal to 18 %, 37 %, 42 %, and 29 %, respectively. However,  introducing the injection wells as another enhancement technique into the tests used the same purging solutions mentioned above which have vital role in increasing the removal efficiency up to 59 %.

 

 

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Published
2015-11-01
How to Cite
Faisal, A. and Rashid, I. (2015) “Enhancement Solution to Improve Remediation of Soil Contaminated with Lead by Electrical Field”, Journal of Engineering, 21(11), pp. 111-129. Available at: http://joe.uobaghdad.edu.iq/index.php/main/article/view/323 (Accessed: 22October2020).