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The removal of color and COD from wastewater containing water base color by coagulation process

  • H. Asilian
  • Sh. Moradian fard
  • A. Rezaei
  • S. B. Mortazavi
  • A. Khavanin
Article

Abstract

In this study acrylic water base color was removed from synthetic wastewater using coagulation process. Experiments were conducted on the sample containing 100 mg/L and 400 mg/L of acrylic water base color. Destruction of color by means of coagulation/flocculation techniques using ferrous sulfate, alum, lime and polyelectrolyte (cationic, anionic and non ionic). The study was performed in a systematic approach searching optimum values of alum and FeSO4 concentration, pH and temperature. All the experiments were run in a laboratory scale.The obtained results show that treatment with alum and ferrous sulfate alone proved to be very effective in removing the color (> 99 %) and part of COD (60–70 %) from aqueous solution. Lime alone did not significant change on COD and color removal.

Keywords

Color and COD removal coagulation ferrous sulfate alum lime aqueous solution 

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Copyright information

© Islamic Azad University 2006

Authors and Affiliations

  • H. Asilian
    • 1
  • Sh. Moradian fard
    • 1
  • A. Rezaei
    • 1
  • S. B. Mortazavi
    • 1
  • A. Khavanin
    • 1
  1. 1.Department of Occupational and Environmental Health, Faculty of Medical SciencesTarbiat Modares UniversityTehranIran

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