%0 Journal Article
%T A Novel Combination of Surfactant Addition and Persulfate-assisted Electrokinetic Oxidation for Remediation of Pyrene-Contaminated Soil
%A Abtahi
%A M.
%A Barzegar
%A G.
%A Darvishi Cheshmeh Soltani
%A R.
%A Jorfi
%A S.
%A Mehrabi
%A N.
%A Saeedi
%A R.
%J -
%D 2018
%R 10.15255/CABEQ.2017.1204
%X Saˋetak Effect of surfactant addition on persulfate-assisted electrokinetic remediation of pyrene-spiked soil was studied. The influence of effective factors including voltage, surfactant addition, moisture content, and persulfate concentration on the removal of initial pyrene concentration of 200 mg kg每1 were investigated. A complete pyrene removal was observed for voltage of 1 V cm每1, saturated conditions, Tween 80 concentration of 20 mL kg每1, and persulfate concentration of 100 mg kg每1 after 24 h, corresponding to pyrene mineralization of 61 %, based on TPH analysis. The experimental results were best fitted with pseudo-first-order kinetic model with correlation coefficient of 0.968 and rate constant of 0.191 minˋ1. The main intermediates of pyrene degradation were benzene o-toluic acid, acetic, azulene, naphthalene and decanoic acid. Finally, an unwashed hydrocarbon- contaminated soil was subjected to persulfate-assisted electrokinetic remediation, and a TPH removal of 38 % was observed for the initial TPH content of 912 mg kg每1, under the selected conditions. This work is licensed under a Creative Commons Attribution 4.0 International License
%K soil remediation
%K electrokinetic oxidation
%K persulfate
%K surfactant
%K pyrene
%U https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=290540