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Hexavalent chromium interaction with chitosan
Abstract
Chitosan prepared from fresh water crab shells was used for hexavalent chromium removal. Kinetic studies indicated a rapid removal of chromium from aqueous solutions. The first‐order rate constant for chromium removal was calculated to be 1.92 h−1. Sorption isothermal data could be interpreted by the Langmuir relationship. Drastic decrease in chromium removal was observed with the increase in pH. Sorption was almost 90% at pH 3 at an initial chromium concentration of 5 mg/L and reduced to 10% at pH 7 and above. Presence of electrolytes and chloride significantly affected the chromium removal, indicating the electrostatic attraction as the main removal mechanism. Regeneration of the sorbent with alkali was not very effective as only 60–65% of sorbed chromium could be recovered.
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Citations
Cited by
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Low-Cost Adsorbents: Growing Approach to Wastewater Treatment—a Review
Gupta, V. K., Carrott, P. J. M., Ribeiro Carrott, M. M. L., & Suhas (2009) · Critical Reviews in Environmental Science and Technology · doi:10.1080/10643380801977610 · Cited by 1,085
Removal of copper(II) ions from aqueous solution onto chitosan and cross-linked chitosan beads
Wan Ngah, W. S., Endud, C. S., & Mayanar, R. (2002) · Reactive and Functional Polymers · doi:10.1016/s1381-5148(01)00113-4 · Cited by 938
Removal of hexavalent chromium-contaminated water and wastewater: A review
Owlad, M., Aroua, M. K., Daud, W. A. W., & Baroutian, S. (2009) · Water, Air, and Soil Pollution · doi:10.1007/s11270-008-9893-7 · Cited by 820
Heterogeneous catalysis on chitosan-based materials: A review
Guibal, E. (2005) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2004.12.001 · Cited by 722
Metadata
- Authors
- Udaybhaskar, P., Iyengar, L., & Rao, A. V. S. P.
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 1990-02-05
- Volume
- 39
- Issue
- 3
- Pages
- 739-747
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W2123312252
- Cited by
- 196
- References
- 0
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
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- Udaybhaskar, P., Iyengar, L., & Rao, A. V. S. P. (1990). Hexavalent chromium interaction with chitosan. Journal of Applied Polymer Science. https://doi.org/10.1002/app.1990.070390322
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
