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Selection of adsorbents for treatment of leachate: batch studies of simultaneous adsorption of heavy metals

Soukand, Uelis; Kängsepp, Pille LU ; Kakum, Rutt; Tenno, Toomas; Mathiasson, Lennart LU and Hogland, William (2010) In Journal of Material Cycles and Waste Management 12(1). p.57-65
Abstract
The simultaneous adsorption of copper (Cu), cadmium (Cd), nickel (Ni), and lead (Pb) ions from spiked deionized water and spiked leachate onto natural materials (peat A and B), by-product or waste materials (carbon-containing ash, paper pellets, pine bark, and semi-coke), and synthetic materials (based on urea-formaldehyde resins, called blue and red adsorbents) or mixtures thereof was investigated. The adsorbents that gave the highest metal removal efficiencies were peat A, a mixture of peat B and carbon-containing ash, and a mixture of peat A and blue. At an initial concentration of 5 mg/l for each metal, the removal of each species of metal ion from spiked water and spiked leachate solutions was very good (> 90%) and good (> 75%),... (More)
The simultaneous adsorption of copper (Cu), cadmium (Cd), nickel (Ni), and lead (Pb) ions from spiked deionized water and spiked leachate onto natural materials (peat A and B), by-product or waste materials (carbon-containing ash, paper pellets, pine bark, and semi-coke), and synthetic materials (based on urea-formaldehyde resins, called blue and red adsorbents) or mixtures thereof was investigated. The adsorbents that gave the highest metal removal efficiencies were peat A, a mixture of peat B and carbon-containing ash, and a mixture of peat A and blue. At an initial concentration of 5 mg/l for each metal, the removal of each species of metal ion from spiked water and spiked leachate solutions was very good (> 90%) and good (> 75%), respectively. When the initial concentration of each metal in the solutions was twenty times higher (100 mg/l), there was a noticeable decrease in the removal efficiency of Cu2+, Cd2+, and Ni2+, but not of Pb2+. Langmuir monolayer adsorption capacities, q(m), on peat A were found to be 0.57, 0.37, and 0.36 mmol/g for Pb2+, Cd2+, and Ni2+, respectively. The order of metal adsorption capacity on peat A was the same in the case of competitive multimetal adsorption conditions as it was for single-element adsorption, namely Pb2+ > Cd2+ a parts per thousand yen Ni2+. The results show that peat alone (an inexpensive adsorbent) is a good adsorbent for heavy metal ions. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Adsorption, Peat, Carbon-containing ash, Leachate
in
Journal of Material Cycles and Waste Management
volume
12
issue
1
pages
57 - 65
publisher
Springer
external identifiers
  • wos:000276759800008
ISSN
1438-4957
DOI
10.1007/s10163-009-0270-4
language
English
LU publication?
yes
id
290ba635-26c5-4870-8491-2cef9a6b8393 (old id 1603024)
date added to LUP
2010-05-17 15:50:47
date last changed
2018-05-29 09:21:05
@article{290ba635-26c5-4870-8491-2cef9a6b8393,
  abstract     = {The simultaneous adsorption of copper (Cu), cadmium (Cd), nickel (Ni), and lead (Pb) ions from spiked deionized water and spiked leachate onto natural materials (peat A and B), by-product or waste materials (carbon-containing ash, paper pellets, pine bark, and semi-coke), and synthetic materials (based on urea-formaldehyde resins, called blue and red adsorbents) or mixtures thereof was investigated. The adsorbents that gave the highest metal removal efficiencies were peat A, a mixture of peat B and carbon-containing ash, and a mixture of peat A and blue. At an initial concentration of 5 mg/l for each metal, the removal of each species of metal ion from spiked water and spiked leachate solutions was very good (> 90%) and good (> 75%), respectively. When the initial concentration of each metal in the solutions was twenty times higher (100 mg/l), there was a noticeable decrease in the removal efficiency of Cu2+, Cd2+, and Ni2+, but not of Pb2+. Langmuir monolayer adsorption capacities, q(m), on peat A were found to be 0.57, 0.37, and 0.36 mmol/g for Pb2+, Cd2+, and Ni2+, respectively. The order of metal adsorption capacity on peat A was the same in the case of competitive multimetal adsorption conditions as it was for single-element adsorption, namely Pb2+ > Cd2+ a parts per thousand yen Ni2+. The results show that peat alone (an inexpensive adsorbent) is a good adsorbent for heavy metal ions.},
  author       = {Soukand, Uelis and Kängsepp, Pille and Kakum, Rutt and Tenno, Toomas and Mathiasson, Lennart and Hogland, William},
  issn         = {1438-4957},
  keyword      = {Adsorption,Peat,Carbon-containing ash,Leachate},
  language     = {eng},
  number       = {1},
  pages        = {57--65},
  publisher    = {Springer},
  series       = {Journal of Material Cycles and Waste Management},
  title        = {Selection of adsorbents for treatment of leachate: batch studies of simultaneous adsorption of heavy metals},
  url          = {http://dx.doi.org/10.1007/s10163-009-0270-4},
  volume       = {12},
  year         = {2010},
}