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Removal of arsenic (V) from aqueous solutions using chitosan-red scoria and chitosan-pumice blends

Tsegaye Girma Asere UGent, Stein Mincke UGent, Jeriffa De Clercq UGent, Kim Verbeken UGent, Dejene A Tessema, Fekadu Fufa, Christian Stevens UGent and Gijs Du Laing UGent (2017) INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH. 14(8).
abstract
In different regions across the globe, elevated arsenic contents in the groundwater constitute a major health problem. In this work, a biopolymer chitosan has been blended with volcanic rocks (red scoria and pumice) for arsenic (V) removal. The effect of three blending ratios of chitosan and volcanic rocks (1:2, 1:5 and 1:10) on arsenic removal has been studied. The optimal blending ratio was 1:5 (chitosan:volcanic rocks) with maximum adsorption capacity of 0.72 mg/g and 0.71 mg/g for chitosan:red scoria (Ch-Rs) and chitosan:pumice (Ch-Pu), respectively. The experimental adsorption data fitted well a Langmuir isotherm (R-2 > 0.99) and followed pseudo-second-order kinetics. The high stability of the materials and their high arsenic (V) removal efficiency (similar to 93%) in a wide pH range (4 to 10) are useful for real field applications. Moreover, the blends could be regenerated using 0.05 M NaOH and used for several cycles without losing their original arsenic removal efficiency. The results of the study demonstrate that chitosan-volcanic rock blends should be further explored as a potential sustainable solution for removal of arsenic (V) from water.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
red scoria, pumice, chitosan, arsenic, adsorption, CROSS-LINKED CHITOSAN, DRINKING-WATER, THERMODYNAMIC ASPECTS, HEXAVALENT CHROMIUM, METHYLENE-BLUE, ADSORPTION, OXIDE, AS(V), KINETICS, AS(III)
journal title
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
Int. J. Environ. Res. Public Health
volume
14
issue
8
article number
895
pages
19 pages
Web of Science type
Article
Web of Science id
000408684300065
ISSN
1660-4601
DOI
10.3390/ijerph14080895
language
English
UGent publication?
yes
classification
A1
copyright statement
Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
id
8535431
handle
http://hdl.handle.net/1854/LU-8535431
date created
2017-10-25 11:09:24
date last changed
2018-02-14 10:24:21
@article{8535431,
  abstract     = {In different regions across the globe, elevated arsenic contents in the groundwater constitute a major health problem. In this work, a biopolymer chitosan has been blended with volcanic rocks (red scoria and pumice) for arsenic (V) removal. The effect of three blending ratios of chitosan and volcanic rocks (1:2, 1:5 and 1:10) on arsenic removal has been studied. The optimal blending ratio was 1:5 (chitosan:volcanic rocks) with maximum adsorption capacity of 0.72 mg/g and 0.71 mg/g for chitosan:red scoria (Ch-Rs) and chitosan:pumice (Ch-Pu), respectively. The experimental adsorption data fitted well a Langmuir isotherm (R-2 {\textrangle} 0.99) and followed pseudo-second-order kinetics. The high stability of the materials and their high arsenic (V) removal efficiency (similar to 93\%) in a wide pH range (4 to 10) are useful for real field applications. Moreover, the blends could be regenerated using 0.05 M NaOH and used for several cycles without losing their original arsenic removal efficiency. The results of the study demonstrate that chitosan-volcanic rock blends should be further explored as a potential sustainable solution for removal of arsenic (V) from water.},
  articleno    = {895},
  author       = {Asere, Tsegaye Girma and Mincke, Stein and De Clercq, Jeriffa and Verbeken, Kim and Tessema, Dejene A and Fufa, Fekadu and Stevens, Christian and Du Laing, Gijs},
  issn         = {1660-4601},
  journal      = {INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH},
  keyword      = {red scoria,pumice,chitosan,arsenic,adsorption,CROSS-LINKED CHITOSAN,DRINKING-WATER,THERMODYNAMIC ASPECTS,HEXAVALENT CHROMIUM,METHYLENE-BLUE,ADSORPTION,OXIDE,AS(V),KINETICS,AS(III)},
  language     = {eng},
  number       = {8},
  pages        = {19},
  title        = {Removal of arsenic (V) from aqueous solutions using chitosan-red scoria and chitosan-pumice blends},
  url          = {http://dx.doi.org/10.3390/ijerph14080895},
  volume       = {14},
  year         = {2017},
}

Chicago
Asere, Tsegaye Girma, Stein Mincke, Jeriffa De Clercq, Kim Verbeken, Dejene A Tessema, Fekadu Fufa, Christian Stevens, and Gijs Du Laing. 2017. “Removal of Arsenic (V) from Aqueous Solutions Using Chitosan-red Scoria and Chitosan-pumice Blends.” International Journal of Environmental Research and Public Health 14 (8).
APA
Asere, T. G., Mincke, S., De Clercq, J., Verbeken, K., Tessema, D. A., Fufa, F., Stevens, C., et al. (2017). Removal of arsenic (V) from aqueous solutions using chitosan-red scoria and chitosan-pumice blends. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 14(8).
Vancouver
1.
Asere TG, Mincke S, De Clercq J, Verbeken K, Tessema DA, Fufa F, et al. Removal of arsenic (V) from aqueous solutions using chitosan-red scoria and chitosan-pumice blends. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH. 2017;14(8).
MLA
Asere, Tsegaye Girma, Stein Mincke, Jeriffa De Clercq, et al. “Removal of Arsenic (V) from Aqueous Solutions Using Chitosan-red Scoria and Chitosan-pumice Blends.” INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 14.8 (2017): n. pag. Print.