Single, binary, and multicomponent sorption of iron and manganese on lignite

Journal of Colloid and Interface Science
Dinesh Mohan, Subhash Chander

Abstract

Acid mine drainage (AMD) has long been a significant environmental problem resulting from the microbial oxidation of iron pyrite in the presence of water and air, affording an acidic solution that contains toxic metal ions. The main objective of this study was to remove metal ions [Fe(II), Fe(III), Mn(II), Zn(II)] from AMD using lignite, a low-cost adsorbent. The lignite sorbent was utilized for the sorption of ferrous, ferric, manganese, zinc, and calcium ions in aqueous solutions. Studies were performed at different pH to find optimum pH. Equilibrium isotherms were determined to assess the maximum adsorption capacity of lignite for different metal ions. Sorption capacities were compared in single, binary, ternary, and multicomponent systems. The sorption data are correlated with Freundlich and Langmuir isotherms in each system. Both Freundlich and Langmuir isotherms fit the data reasonably well in terms of regression coefficients. Sorption studies were also performed at different temperatures to obtain the thermodynamic parameters of the process. The maximum lignite adsorption capacities at 25 degrees C were 34.22, 25.84, and 11.90 mg/g for Fe(II), Mn(II), and Fe(III), respectively. Adsorption of Fe(2+) (24.70 mg/g at 10 degr...Continue Reading

References

Feb 1, 2005·The Science of the Total Environment·D Barrie Johnson, Kevin B Hallberg
Jul 29, 2005·Environmental Science & Technology·Ulla WingenfelderRainer Schulin

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Citations

Apr 8, 2014·Journal of Environmental Radioactivity·S H AhmedA M A Morsy
May 2, 2014·Environmental Science and Pollution Research International·Lena Johansson WestholmMika Sillanpää
Jun 19, 2012·Journal of Environmental Radioactivity·I M El-NaggarM F El-Shahat
Apr 19, 2011·Journal of Hazardous Materials·Srilert ChotpantaratKhemarath Osathaphan
Jun 21, 2008·Journal of Hazardous Materials·Julio C P VaghettiSilvio L P Dias
Jun 26, 2007·Journal of Hazardous Materials·Xueyan GuoXiao-quan Shan
Feb 28, 2007·Journal of Hazardous Materials·Dinesh Mohan, Charles U Pittman
Jun 21, 2006·Journal of Hazardous Materials·Dinesh Mohan, Subhash Chander
Apr 11, 2015·Environmental Science and Pollution Research International·Lei ChenJunjie Zhang
Sep 29, 2009·Journal of Colloid and Interface Science·A L P F CaroniJ L C Fonseca
Apr 29, 2011·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Annie CarrièreBenoit Barbeau
Jul 4, 2019·Environmental Science and Pollution Research International·Hisham Soliman HassanHaneen Abdel-Salam Ibrahim
Jun 24, 2017·Frontiers in Microbiology·Carl-Eric Wegner, Werner Liesack

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