The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.
Phosphate removal from aqueous solution using iron oxides: Adsorption, desorption and regeneration characteristics
Abstract
Dynamics of phosphate (PO43-) adsorption, desorption and regeneration characteristics of three lab-synthesized iron oxides, ferrihydrite (F), goethite (G), and magnetite (M) were evaluated in this study. Batch experiments were conducted to evaluate the impact of several adsorption parameters including adsorbent dosage, reaction time, temperature, pH, and ionic strength. The results showed that PO43- adsorption increased with reaction time and temperature while it decreased with an increase in solution pH. Adsorption isotherm data exhibited good agreement with the Freundlich and Langmuir model with maximum monolayer adsorption capacities of 66.6 mg·g-1 (F), 57.8 mg·g-1 (M), and 50.5 mg·g-1 (G). A thermodynamics evaluation produced ΔG < 0, ΔH > 0, and ΔS > 0, demonstrating that PO43- adsorption onto tested minerals is endothermic, spontaneous, and disordered. The PO43- removal mostly occurred via electrostatic attraction between the sorbate and sorbent surfaces. Moreover, the PO43- sorption was reversible and could be desorbed at varying rates in both neutral and alkaline environments. The good desorption capacity has practical benefits for potential regeneration and re-use of the saturated particles in wastewater treatment systems.
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Cites
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Cited by
Performance and prospects of different adsorbents for phosphorus uptake and recovery from water
Bacelo, H., Pintor, A. M. A., Santos, S. C. R., Boaventura, R. A. R., & Botelho, C. M. S. (2020) · Chemical Engineering Journal · doi:10.1016/j.cej.2019.122566 · Cited by 620
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Akhtar, M., Sarfraz, M., Ahmad, M., Raza, N., & Zhang, L. (2025) · Desalination and Water Treatment · doi:10.1016/j.dwt.2024.100914 · Cited by 94
Essekri, A., Hsini, A., Naciri, Y., Laabd, M., Ajmal, Z., El Ouardi, M., Ait Addi, A., & Albourine, A. (2021) · International Journal of Phytoremediation · doi:10.1080/15226514.2020.1813686 · Cited by 94
Self-citationMissau, J., Rodrigues, M. A. S., Bertuol, D. A., & Tanabe, E. H. (2022) · Water Science and Technology · doi:10.2166/wst.2022.332 · Cited by 25
Metadata
- Authors
- Ajmal, Z., Muhmood, A., Usman, M., Kizito, S., Lu, J., Dong, R., & Wu, S.
- Venue
- Journal of Colloid and Interface Science
- Publisher
- Elsevier BV
- Published
- 2018-10
- Volume
- 528
- Pages
- 145-155
- ISSN
- 0021-9797 (ISSN-L)
- OpenAlex
- W2804626313
- Cited by
- 396
- References
- 41
- FWCI
- 29.13
- Type
- journal article
- Language
- en
- Open access
- closed
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- Ajmal, Z., Muhmood, A., Usman, M., Kizito, S., Lu, J., Dong, R., & Wu, S. (2018). Phosphate removal from aqueous solution using iron oxides: Adsorption, desorption and regeneration characteristics. Journal of Colloid and Interface Science. https://doi.org/10.1016/j.jcis.2018.05.084
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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