Electrokinetic (EK) removal of soil co-contaminated with petroleum oils and heavy metals in three-dimensional (3D) small-scale reactor.

Autor: Jae-Young Lee1, Tae-Soon Kwon1, Ji-Yeon Park2, Saehae Choi3, Eui Jin Kim4, Hyun Uk Lee5, Young-Chul Lee4 dreamdbs@gachon.ac.kr
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Zdroj: Process Safety & Environmental Protection: Transactions of the Institution of Chemical Engineers Part B. Jan2016, Vol. 99, p186-193. 8p.
Abstrakt: Electrokinetic (EK) soil remediation is a known powerful technology for decontamination of organic and inorganic pollutants or their combination. Classically, one- and twodimensional (1D and 2D) EK cells have been utilized for remediation of a variety of co-contaminated soils. Preparatory to scale up or practical EK applications, in the present study, three-dimensional small-scale (3D) EK cells on the batch scale were tested for remediation of petroleum-oil- and heavy-metals co-contaminated soil. In the results, with 0.10 M KH2PO4 as the anolyte for 21 days, removal efficiencies of better than 95% of TPH, more than 50% of As species and ~20% of Cu species were achieved, though the removal of the Pb and Zn species was relatively inefficient, at less than 20%. Currently, new electrolyte designs and a scaled-up EK cell operation are being planned for obtainment of data on real-soil-remediation feasibility. [ABSTRACT FROM AUTHOR]
Databáze: GreenFILE
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