Jeon, Chil-Sung Yang, Jung-Seok Kim, Kyung-Jo Baek, Kitae 2024-01-20T20:01:29Z 2024-01-20T20:01:29Z 2021-09-02 2010-02 1863-0650 https://pubs.kist.re.kr/handle/201004/131754 This study investigates total petroleum hydrocarbon (TPH) removal from residual clayey soil, after a washing procedure, using an electrokinetic process. Eight electrokinetic experiments were carried out to investigate the characteristics of TPH removal. When 0.1 M MgSO4 or 0.1 M NaOH was used as an electrolyte, the electric current rapidly increased within the first 100 or 200 h, respectively. A negatively charged soil surface resulted in a more negative zeta potential and greater electroosmotic flow toward the cathode. Therefore, the accumulated electroosmotic flow (EOF) when using 0.1 M NaOH as the anolyte-purging solution was higher than when using 0.1 M MgSO4. Although the energy consumption for the two purging solutions was similar, the efficiencies of TPH removal when 0.1 M MgSO4 and 0.1 M NaOH with surfactant were used were 0 and 39, respectively, because the electroosmotic flow rate increased with TPH removal efficiency. Mien 5 isopropyl alcohol (IPA) was used as a circulation solution, the electric current increased but the TPH removal was similar to that using water. In terms of energy consumption, the use of a surfactant-enhanced electrokinetic process with NaOH as electrolyte was effective in removing TPHs from low-perineability soil. English WILEY CONTAMINATED SOIL REMEDIATION PHENANTHRENE PHYTOREMEDIATION KAOLINITE COPPER Electrokinetic Removal of Petroleum Hydrocarbon from Residual Clayey Soil Following a Washing Process Article 10.1002/clen.200900190 1 CLEAN-SOIL AIR WATER, v.38, no.2, pp.189 - 193 CLEAN-SOIL AIR WATER 38 2 189 193 scie scopus 000275854300027 2-s2.0-77449095963 Green & Sustainable Science & Technology Environmental Sciences Marine & Freshwater Biology Water Resources Science & Technology - Other Topics Environmental Sciences & Ecology Marine & Freshwater Biology Water Resources Article CONTAMINATED SOIL REMEDIATION PHENANTHRENE PHYTOREMEDIATION KAOLINITE COPPER Electrokinetic Electrolyte Electroosmosis Surfactant Total petroleum hydrocarbon