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

Sivasankar Annamalai, Manikandan Santhanam, Maruthamuthu Sundaram, Marta Pazos Curras

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

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 electrokinetic technique for the treatment of textile contaminated soil. Impressed direct current voltage of 20V 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.

Original languageEnglish
Pages (from-to)673-678
Number of pages6
JournalChemosphere
Volume117
Issue number1
DOIs
StatePublished - 1 Jan 2014
Externally publishedYes

Keywords

  • Contaminated soil
  • DC electrokinetic
  • Inorganic salt
  • IrO-RuO-TiO/Ti
  • Organic removal
  • Textile polluted area

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry (all)
  • Pollution
  • Health, Toxicology and Mutagenesis

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