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Evaluation of selective composite cryogel for bromate removal from drinking water.

Hajizadeh, Solmaz LU ; Kirsebom, Harald LU ; Galaev, Igor LU and Mattiasson, Bo LU (2010) In Journal of Separation Science 33. p.1752-1759
Abstract
Bromate, which is a potential carcinogen, should be removed from drinking water to levels of less than 10 mug/L. A chitosan-based molecularly imprinted polymer (MIP) and a sol-gel ion-exchange double hydrous oxide (Fe(2)O(3).Al(2)O(3).xH(2)O) adsorbent (inorganic adsorbent) were prepared for this purpose. The sorption behavior of each adsorbent including sorption kinetics, isotherms, effect of pH and selective sorption were investigated in detail. Sorption experimental results showed that the MIP adsorbents had better selectivity for bromate, even in the presence of high concentrations of nitrate, as compared to the inorganic adsorbent. It was found that pH does not affect the adsorption of bromate when using the inorganic adsorbent.... (More)
Bromate, which is a potential carcinogen, should be removed from drinking water to levels of less than 10 mug/L. A chitosan-based molecularly imprinted polymer (MIP) and a sol-gel ion-exchange double hydrous oxide (Fe(2)O(3).Al(2)O(3).xH(2)O) adsorbent (inorganic adsorbent) were prepared for this purpose. The sorption behavior of each adsorbent including sorption kinetics, isotherms, effect of pH and selective sorption were investigated in detail. Sorption experimental results showed that the MIP adsorbents had better selectivity for bromate, even in the presence of high concentrations of nitrate, as compared to the inorganic adsorbent. It was found that pH does not affect the adsorption of bromate when using the inorganic adsorbent. Additionally, both adsorbents were immobilized in a polymeric cryogel inside plastic carriers to make them more practical for using in larger scale. Regeneration of the cryogels either containing MIP or inorganic adsorbents were carried out by 0.1 M NaOH and 0.1 M NaCl, respectively. It was found that the regenerated MIP and inorganic adsorbents could be used at least three and five times, respectively, without any loss in their sorption capacity. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Separation Science
volume
33
pages
1752 - 1759
publisher
John Wiley & Sons
external identifiers
  • wos:000279656600008
  • pmid:20506239
  • scopus:77953553607
ISSN
1615-9314
DOI
10.1002/jssc.201000019
language
English
LU publication?
yes
id
2dcc9be2-094b-4d1f-97d7-00bb288118bf (old id 1609846)
date added to LUP
2010-06-10 17:13:16
date last changed
2018-06-24 03:30:21
@article{2dcc9be2-094b-4d1f-97d7-00bb288118bf,
  abstract     = {Bromate, which is a potential carcinogen, should be removed from drinking water to levels of less than 10 mug/L. A chitosan-based molecularly imprinted polymer (MIP) and a sol-gel ion-exchange double hydrous oxide (Fe(2)O(3).Al(2)O(3).xH(2)O) adsorbent (inorganic adsorbent) were prepared for this purpose. The sorption behavior of each adsorbent including sorption kinetics, isotherms, effect of pH and selective sorption were investigated in detail. Sorption experimental results showed that the MIP adsorbents had better selectivity for bromate, even in the presence of high concentrations of nitrate, as compared to the inorganic adsorbent. It was found that pH does not affect the adsorption of bromate when using the inorganic adsorbent. Additionally, both adsorbents were immobilized in a polymeric cryogel inside plastic carriers to make them more practical for using in larger scale. Regeneration of the cryogels either containing MIP or inorganic adsorbents were carried out by 0.1 M NaOH and 0.1 M NaCl, respectively. It was found that the regenerated MIP and inorganic adsorbents could be used at least three and five times, respectively, without any loss in their sorption capacity.},
  author       = {Hajizadeh, Solmaz and Kirsebom, Harald and Galaev, Igor and Mattiasson, Bo},
  issn         = {1615-9314},
  language     = {eng},
  pages        = {1752--1759},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Separation Science},
  title        = {Evaluation of selective composite cryogel for bromate removal from drinking water.},
  url          = {http://dx.doi.org/10.1002/jssc.201000019},
  volume       = {33},
  year         = {2010},
}