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Kinetic and Thermodynamic Studies on the Phosphate Adsorption Removal by Dolomite Mineral
Joint Authors
Yuan, Xiaoli
Xia, Wentang
An, Juan
Yin, Jianguo
Zhou, Xuejiao
Yang, Wenqiang
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-04-02
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The efficiency of dolomite to remove phosphate from aqueous solutions was investigated.
The experimental results showed that the removal of phosphate by dolomite was rapid (the removal rate over 95% in 60 min) when the initial phosphate concentration is at the range of 10–50 mg/L.
Several kinetic models including intraparticle diffusion model, pseudo-first-order model, Elovich model, and pseudo-second-order model were employed to evaluate the kinetics data of phosphate adsorption onto dolomite and pseudo-second-order model was recommended to describe the adsorption kinetics characteristics.
Further analysis of the adsorption kinetics indicated that the phosphate removal process was mainly controlled by chemical bonding or chemisorption.
Moreover, both Freundlich and Langmuir adsorption isotherms were used to evaluate the experimental data.
The results indicated that Langmuir isotherm was more suitable to describe the adsorption characteristics of dolomite.
Maximum adsorption capacity of phosphate by dolomite was found to be 4.76 mg phosphorous/g dolomite.
Thermodynamic studies showed that phosphate adsorption was exothermic.
The study implies that dolomite is an excellent low cost material for phosphate removal in wastewater treatment process.
American Psychological Association (APA)
Yuan, Xiaoli& Xia, Wentang& An, Juan& Yin, Jianguo& Zhou, Xuejiao& Yang, Wenqiang. 2015. Kinetic and Thermodynamic Studies on the Phosphate Adsorption Removal by Dolomite Mineral. Journal of Chemistry،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1067654
Modern Language Association (MLA)
Yuan, Xiaoli…[et al.]. Kinetic and Thermodynamic Studies on the Phosphate Adsorption Removal by Dolomite Mineral. Journal of Chemistry No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1067654
American Medical Association (AMA)
Yuan, Xiaoli& Xia, Wentang& An, Juan& Yin, Jianguo& Zhou, Xuejiao& Yang, Wenqiang. Kinetic and Thermodynamic Studies on the Phosphate Adsorption Removal by Dolomite Mineral. Journal of Chemistry. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1067654
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1067654