Pb(II) removal from aqueous solution by Myriophyllum spicatum and its compost: equilibrium, kinetic and thermodynamic study

  • Milojković J
  • Mihajlović M
  • Stojanović M
 et al. 
  • 19


    Mendeley users who have this article in their library.
  • N/A


    Citations of this article.



Lead is one of the frequent contaminants of industrial wastewater. Since it has been shown that aquatic plants can be used for the removal of heavy metals, herein Pb(II) biosorption by Myriophyllum spicatum and its compost were investigated. Effects of pH, ionic strength and contact time were analyzed using a batch experiment. Biomasses were characterized chemically and by Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray diffraction techniques.


The adsorption process of both biosorbents followed a pseudo-second-order kinetic model. Compost exhibits better Pb(II) removal from solution (71%) compared with the plant (61%). Lead binding capacities for M. spicatum and its compost were 0.234 mmol g-1 and 0.287 mmol g-1 at pH 5.0, respectively. Lead binding takes place mainly through an ion exchange mechanism, but chemisorption via identified functional groups cannot be neglected. The Langmuir, Freundlich and Sips adsorption models for compost were applied. The Sips isotherm model gave the best fit with the equilibrium experimental data. The sorption process by compost was endothermic and spontaneous.


Aquatic weed compost as a low cost biosorbent with high biosorption capacity can potentially be used for the removal of lead from wastewaters. © 2013 Society of Chemical Industry

Author-supplied keywords

  • aquatic weed
  • biosorption
  • compost
  • ii
  • ions
  • isotherm
  • pb
  • thermodynamic

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Jelena V. Milojković

  • Marija L. Mihajlović

  • Mirjana D. Stojanović

  • Zorica R. Lopičić

  • Marija S. Petrović

  • Tatjana D. Šoštarić

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free