Removal of sodium lauryl sulphate by coagulation/flocculation with Moringa oleifera seed extract

J Hazard Mater. 2009 May 30;164(2-3):713-9. doi: 10.1016/j.jhazmat.2008.08.053. Epub 2008 Aug 23.


Among other natural flocculant/coagulant agents, Moringa oleifera seed extract ability to remove an anionic surfactant has been evaluated and it has been found to be very interesting. Sodium lauryl sulphate was removed from aqueous solutions up to 80% through coagulation/flocculation process. pH and temperature were found to be not very important factors in removal efficiency. Freundlich (F), Frumkin-Fowler-Guggenheim (FFG) and Gu-Zhu (GZ) models were used to adjust experimental data in a solid-liquid adsorption hypothesis. Last one resulted to be the most accurate one. Several data fit parameters were determined, as Freundlich order, which was found to be 1.66, Flory-Huggins interaction parameter from FFG model, which was found to be 4.87; and limiting Moringa surfactant adsorption capacity from GZ model, which was found to be 2.13 x 10(-3)mol/g.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Environmental Restoration and Remediation / methods
  • Flocculation
  • Moringa oleifera*
  • Plant Extracts*
  • Seeds*
  • Sodium Dodecyl Sulfate / isolation & purification*
  • Surface-Active Agents / isolation & purification
  • Water Pollutants / isolation & purification*
  • Water Purification / methods


  • Plant Extracts
  • Surface-Active Agents
  • Water Pollutants
  • Sodium Dodecyl Sulfate