Electrokinetic remediation of inorganic and organic pollutants in textile effluent contaminated agricultural soil

被引：37
|
作者：
Annamalai, Sivasankar [1 ]
Santhanam, Manikandan [1 ]
Sundaram, Maruthamuthu [1 ]
Pazos Curras, Marta [2 ]
机构：
[1] CSIR, Cent Electrochem Res Inst, Karaikkudi 630006, Tamil Nadu, India
[2] Univ Vigo, Dept Chem Engn, Lagoas Marcosende 36310, Spain
来源：
CHEMOSPHERE | 2014年 / 117卷
关键词：
Textile polluted area; Contaminated soil; IrO2-RuO2-TiO2/Ti; DC electrokinetic; Inorganic salt; Organic removal; HEAVY-METALS; ENHANCED REMEDIATION; SIMULTANEOUS REMOVAL; CHROMIUM; SULFATE; SYSTEM; CLAY; LEAD;
D O I：
10.1016/j.chemosphere.2014.10.023
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The discharge from the dyeing industries constitutes unfixed dyes, inorganic salts, heavy metal complexes etc., which spoil the surrounding areas of industrial sites. The present article reports the use of direct current electroldnetic technique for the treatment of textile contaminated soil. Impressed direct current voltage of 20 V facilitates the dye/metal ions movement in the naturally available dye contaminated soil towards the opposite electrode by electromigration. IrO2-RuO2-TiO2/Ti was used as anode and Ti used as cathode. UV-Visible spectrum reveals that higher dye intensity was nearer to the anode. Ni, Cr and Pb migration towards the cathode and migration of Cu, SO42- and Cl- towards anode were noticed. Chemical oxygen demand in soil significantly decreased upon employing electrokinetic. This technology may be exploited for faster and eco-friendly removal of dye in soil environment. (C) 2014 Elsevier Ltd. All rights reserved.
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页码：673 / 678
页数：6
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