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Removal of metals from landfill leachate by sorption to activated carbon, bone meal and iron fines.

Modin, Hanna LU ; Persson, Kenneth M LU ; Andersson, Anna and van Praagh, Martijn LU (2011) In Journal of Hazardous Materials 189. p.749-754
Abstract
Sorption filters based on granular activated carbon, bone meal and iron fines were tested for their efficiency of removing metals from landfill leachate. Removal of Al, As, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Mo, Ni, Pb, Sr and Zn were studied in a laboratory scale setup. Activated carbon removed more than 90% of Co, Cr, Cu, Fe, Mn and Ni. Ca, Pb, Sr and Zn were removed but less efficiently. Bone meal removed over 80% of Cr, Fe, Hg, Mn and Sr and 20-80% of Al, Ca, Cu, Mo, Ni, Pb and Zn. Iron fines removed most metals (As, Ca, Co, Cr, Cu, Fe, Mg, Mn, Pb, Sr and Zn) to some extent but less efficiently. All materials released unwanted substances (metals, TOC or nutrients), highlighting the need to study the uptake and release of a large... (More)
Sorption filters based on granular activated carbon, bone meal and iron fines were tested for their efficiency of removing metals from landfill leachate. Removal of Al, As, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Mo, Ni, Pb, Sr and Zn were studied in a laboratory scale setup. Activated carbon removed more than 90% of Co, Cr, Cu, Fe, Mn and Ni. Ca, Pb, Sr and Zn were removed but less efficiently. Bone meal removed over 80% of Cr, Fe, Hg, Mn and Sr and 20-80% of Al, Ca, Cu, Mo, Ni, Pb and Zn. Iron fines removed most metals (As, Ca, Co, Cr, Cu, Fe, Mg, Mn, Pb, Sr and Zn) to some extent but less efficiently. All materials released unwanted substances (metals, TOC or nutrients), highlighting the need to study the uptake and release of a large number of compounds, not only the target metals. To remove a wide range of metals using these materials two or more filter materials may need to be combined. Sorption mechanisms for all materials include ion exchange, sorption and precipitation. For iron fines oxidation of Fe(0) seems to be important for metal immobilisation. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Hazardous Materials
volume
189
pages
749 - 754
publisher
Elsevier
external identifiers
  • wos:000291912200017
  • pmid:21435782
  • scopus:79956011064
ISSN
1873-3336
DOI
10.1016/j.jhazmat.2011.03.001
language
English
LU publication?
yes
id
42ec8ad4-de43-4675-bcb8-30f7c1f298f1 (old id 1883454)
date added to LUP
2011-05-27 12:57:42
date last changed
2017-09-24 03:23:58
@article{42ec8ad4-de43-4675-bcb8-30f7c1f298f1,
  abstract     = {Sorption filters based on granular activated carbon, bone meal and iron fines were tested for their efficiency of removing metals from landfill leachate. Removal of Al, As, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Mo, Ni, Pb, Sr and Zn were studied in a laboratory scale setup. Activated carbon removed more than 90% of Co, Cr, Cu, Fe, Mn and Ni. Ca, Pb, Sr and Zn were removed but less efficiently. Bone meal removed over 80% of Cr, Fe, Hg, Mn and Sr and 20-80% of Al, Ca, Cu, Mo, Ni, Pb and Zn. Iron fines removed most metals (As, Ca, Co, Cr, Cu, Fe, Mg, Mn, Pb, Sr and Zn) to some extent but less efficiently. All materials released unwanted substances (metals, TOC or nutrients), highlighting the need to study the uptake and release of a large number of compounds, not only the target metals. To remove a wide range of metals using these materials two or more filter materials may need to be combined. Sorption mechanisms for all materials include ion exchange, sorption and precipitation. For iron fines oxidation of Fe(0) seems to be important for metal immobilisation.},
  author       = {Modin, Hanna and Persson, Kenneth M and Andersson, Anna and van Praagh, Martijn},
  issn         = {1873-3336},
  language     = {eng},
  pages        = {749--754},
  publisher    = {Elsevier},
  series       = {Journal of Hazardous Materials},
  title        = {Removal of metals from landfill leachate by sorption to activated carbon, bone meal and iron fines.},
  url          = {http://dx.doi.org/10.1016/j.jhazmat.2011.03.001},
  volume       = {189},
  year         = {2011},
}