Immobilisation of Co, Fe, and Mn from acid mine drainage using activated bentonite

F. Ntuli, T. Falayi, L. Harmse

Research output: Contribution to conferencePaper

Abstract

The potential use of activated bentonite as an adsorbent for heavy metals in acid mine drainage (AMD) was investigated. The activated bentonite was characterized as sodium bentonite. 1% solid loading was not effective in neutralization and metal removal. 5% solid loading could neutralize AMD as pH increased from 2.08 to 7.88 after 3 h accompanied with 94.00% Co, 99.88% Fe, and 90.93% Mn removal from AMD. The adsorption process followed the Langmuir isotherm and pseudo second order kinetic models. The maximum adsorption capacities were 0.019, 10.00, 0.441 mg/g for Co, Fe, and Mn, respectively. Co and Fe adsorption were thermodynamically spontaneous while Mn adsorption was not thermodynamically spontaneous. © 2014 WIT Press.
Original languageEnglish
Pages267-274
Number of pages8
Publication statusPublished - 2014
Event2013 International Conference on Biomedical Engineering and Environmental Engineering -
Duration: Dec 1 2013Dec 2 2013
Conference number: 1

Conference

Conference2013 International Conference on Biomedical Engineering and Environmental Engineering
Abbreviated titleICBEEE 2013
Period12/1/1312/2/13

Fingerprint

acid mine drainage
bentonite
immobilization
adsorption
neutralization
isotherm
sodium
heavy metal
kinetics
metal
removal

Cite this

Ntuli, F., Falayi, T., & Harmse, L. (2014). Immobilisation of Co, Fe, and Mn from acid mine drainage using activated bentonite. 267-274. Paper presented at 2013 International Conference on Biomedical Engineering and Environmental Engineering, .
Ntuli, F. ; Falayi, T. ; Harmse, L. / Immobilisation of Co, Fe, and Mn from acid mine drainage using activated bentonite. Paper presented at 2013 International Conference on Biomedical Engineering and Environmental Engineering, .8 p.
@conference{79a0e3d9da7243d39d9e1868350b6023,
title = "Immobilisation of Co, Fe, and Mn from acid mine drainage using activated bentonite",
abstract = "The potential use of activated bentonite as an adsorbent for heavy metals in acid mine drainage (AMD) was investigated. The activated bentonite was characterized as sodium bentonite. 1{\%} solid loading was not effective in neutralization and metal removal. 5{\%} solid loading could neutralize AMD as pH increased from 2.08 to 7.88 after 3 h accompanied with 94.00{\%} Co, 99.88{\%} Fe, and 90.93{\%} Mn removal from AMD. The adsorption process followed the Langmuir isotherm and pseudo second order kinetic models. The maximum adsorption capacities were 0.019, 10.00, 0.441 mg/g for Co, Fe, and Mn, respectively. Co and Fe adsorption were thermodynamically spontaneous while Mn adsorption was not thermodynamically spontaneous. {\circledC} 2014 WIT Press.",
author = "F. Ntuli and T. Falayi and L. Harmse",
note = "Export Date: 19 June 2018; 2013 International Conference on Biomedical Engineering and Environmental Engineering, ICBEEE 2013 ; Conference date: 01-12-2013 Through 02-12-2013",
year = "2014",
language = "English",
pages = "267--274",

}

Ntuli, F, Falayi, T & Harmse, L 2014, 'Immobilisation of Co, Fe, and Mn from acid mine drainage using activated bentonite' Paper presented at 2013 International Conference on Biomedical Engineering and Environmental Engineering, 12/1/13 - 12/2/13, pp. 267-274.

Immobilisation of Co, Fe, and Mn from acid mine drainage using activated bentonite. / Ntuli, F.; Falayi, T.; Harmse, L.

2014. 267-274 Paper presented at 2013 International Conference on Biomedical Engineering and Environmental Engineering, .

Research output: Contribution to conferencePaper

TY - CONF

T1 - Immobilisation of Co, Fe, and Mn from acid mine drainage using activated bentonite

AU - Ntuli, F.

AU - Falayi, T.

AU - Harmse, L.

N1 - Export Date: 19 June 2018

PY - 2014

Y1 - 2014

N2 - The potential use of activated bentonite as an adsorbent for heavy metals in acid mine drainage (AMD) was investigated. The activated bentonite was characterized as sodium bentonite. 1% solid loading was not effective in neutralization and metal removal. 5% solid loading could neutralize AMD as pH increased from 2.08 to 7.88 after 3 h accompanied with 94.00% Co, 99.88% Fe, and 90.93% Mn removal from AMD. The adsorption process followed the Langmuir isotherm and pseudo second order kinetic models. The maximum adsorption capacities were 0.019, 10.00, 0.441 mg/g for Co, Fe, and Mn, respectively. Co and Fe adsorption were thermodynamically spontaneous while Mn adsorption was not thermodynamically spontaneous. © 2014 WIT Press.

AB - The potential use of activated bentonite as an adsorbent for heavy metals in acid mine drainage (AMD) was investigated. The activated bentonite was characterized as sodium bentonite. 1% solid loading was not effective in neutralization and metal removal. 5% solid loading could neutralize AMD as pH increased from 2.08 to 7.88 after 3 h accompanied with 94.00% Co, 99.88% Fe, and 90.93% Mn removal from AMD. The adsorption process followed the Langmuir isotherm and pseudo second order kinetic models. The maximum adsorption capacities were 0.019, 10.00, 0.441 mg/g for Co, Fe, and Mn, respectively. Co and Fe adsorption were thermodynamically spontaneous while Mn adsorption was not thermodynamically spontaneous. © 2014 WIT Press.

M3 - Paper

SP - 267

EP - 274

ER -

Ntuli F, Falayi T, Harmse L. Immobilisation of Co, Fe, and Mn from acid mine drainage using activated bentonite. 2014. Paper presented at 2013 International Conference on Biomedical Engineering and Environmental Engineering, .