Batch and column adsorption of dye contaminants using a low-cost sand adsorbent

Batch and column adsorption of dye contaminants using a low-cost sand adsorbent In the current study, the sand collected from a specific location called Ruba Al-Khali in Saudi Arabia has been identified and efficiently used for the removal of dye contaminate through adsorption process. It was found that the crystalline SiO2 (including quartz and cristobalite SiO2) is the major component in the micrometer-sized sand adsorbent with lava-like rough surface. Batch adsorption experiments were investigated and discussed by using Rhodamine B (RhB) as the model toxic contaminant. The adsorption of RhB with the exothermic nature is considered to be more favorably by the pseudo-second-order model. The corresponding adsorption capacity at room temperature is examined at around 2.94 mg g−1 by Langmuir fitting. Furthermore, the effects of empty bed contact time, initial concentration, and the pH value of RhB solution on the breakthrough point in the column adsorption process were investigated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Batch and column adsorption of dye contaminants using a low-cost sand adsorbent

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Publisher
Springer Journals
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1794-3
Publisher site
See Article on Publisher Site

Abstract

In the current study, the sand collected from a specific location called Ruba Al-Khali in Saudi Arabia has been identified and efficiently used for the removal of dye contaminate through adsorption process. It was found that the crystalline SiO2 (including quartz and cristobalite SiO2) is the major component in the micrometer-sized sand adsorbent with lava-like rough surface. Batch adsorption experiments were investigated and discussed by using Rhodamine B (RhB) as the model toxic contaminant. The adsorption of RhB with the exothermic nature is considered to be more favorably by the pseudo-second-order model. The corresponding adsorption capacity at room temperature is examined at around 2.94 mg g−1 by Langmuir fitting. Furthermore, the effects of empty bed contact time, initial concentration, and the pH value of RhB solution on the breakthrough point in the column adsorption process were investigated.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Oct 7, 2014

References

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