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Uranium removal from groundwater by natural clinoptilolite zeolite: Effects of pH and initial feed concentration
Abstract
Adsorption of uranium (VI) on a natural clinoptilolite zeolite from Sweetwater County, Wyoming was investigated. Batch experiments were conducted to study the effects of pH and initial feed concentrations on uranium removal efficiency. It was found that the clinoptilolite can neutralize both acidic and low basic water solutions through its alkalinity and ion-exchange reactions with U within the solution, and adsorption of uranium (VI) species on clinoptilolite not only depends on the pH but also the initial feed concentration. The highest uranium removal efficiency (95.6%) was obtained at initial uranium concentration of 5mg/L and pH 6.0. The Langmuir adsorption isotherm model correlates well with the uranium adsorption equilibrium data for the concentration range of 0.1-500 mg/L. From the experimental data obtained in this work, it was found that the zeolite sample investigated in this work is a mixture of clinoptilolite-Na zeolite and mineral impurities with a relatively large specific surface area (BET of 18 m(2)/g) and promising adsorption properties for uranium removal from contaminated water.
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Citations
Cites
The adsorption of gases on plane surfaces of glass, mica and platinum
Langmuir, I. (1918) · Journal of the American Chemical Society · doi:10.1021/ja02242a004 · Cited by 23,242
Cited by
Kumar, S., Loganathan, V. A., Gupta, R. B., & Barnett, M. O. (2011) · Journal of Environmental Management · doi:10.1016/j.jenvman.2011.05.013 · Cited by 354
Zong, P., Wang, S., Zhao, Y., Wang, H., Pan, H., & He, C. (2013) · Chemical Engineering Journal · doi:10.1016/j.cej.2013.01.038 · Cited by 324
Rapid removal of uranium from aqueous solutions using magnetic Fe3O4@SiO2 composite particles
Fan, F.-L., Qin, Z., Bai, J., Rong, W.-D., Fan, F.-Y., Tian, W., Wu, X.-L., Wang, Y., & Zhao, L. (2012) · Journal of Environmental Radioactivity · doi:10.1016/j.jenvrad.2011.11.003 · Cited by 272
Radioactive waste treatments by using zeolites. A short review
Jiménez-Reyes, M., Almazán-Sánchez, P. T., & Solache-Ríos, M. (2021) · Journal of Environmental Radioactivity · doi:10.1016/j.jenvrad.2021.106610 · Cited by 193
Metadata
- Authors
- Camacho, L. M., Deng, S., & Parra, R. R.
- Venue
- Journal of Hazardous Materials
- Publisher
- Elsevier BV
- Published
- 2010-03
- Volume
- 175
- Issue
- 1-3
- Pages
- 393-398
- ISSN
- 0304-3894 (ISSN-L)
- OpenAlex
- W2060121236
- Cited by
- 303
- References
- 1
- FWCI
- 4.39
- Type
- journal article
- Language
- en
- Open access
- closed
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- Camacho, L. M., Deng, S., & Parra, R. R. (2010). Uranium removal from groundwater by natural clinoptilolite zeolite: Effects of pH and initial feed concentration. Journal of Hazardous Materials. https://doi.org/10.1016/j.jhazmat.2009.10.017
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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.
