Adsorption of metal ions on lignin.

@article{Guo2008AdsorptionOM,
  title={Adsorption of metal ions on lignin.},
  author={Xueyan Guo and Shuzhen Zhang and Xiao-quan Shan},
  journal={Journal of hazardous materials},
  year={2008},
  volume={151 1},
  pages={
          134-42
        }
}
This study investigated the adsorption of the heavy metal ions Pb(II), Cu(II), Cd(II), Zn(II), and Ni(II) on a lignin isolated from black liquor, a waste product of the paper industry. Lignin has affinity with metal ions in the following order: Pb(II)>Cu(II)>Cd(II)>Zn(II)>Ni(II). The adsorption kinetic data can be described well with a pseudosecond-order model and the equilibrium data can be fitted well to the Langmuir isotherm. Metal ion adsorption was strongly dependent on pH and ionic… CONTINUE READING

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