The Effect of Orthophosphate‚ Nitrate, and Chloride Anions on the Adsorption of Zinc in Some Calcareous Soils in Chaharmahal-va-Bakhtiari Province

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Kiani Harcheghani S. Z.; Hosseinpur A. R.; Motaghian H. R.

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Journal: Journal of Water and Soil Science Year:2019 | Volume:23 | Issue:2 Page(s): 55-72

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Title

The Effect of Orthophosphate‚ Nitrate, and Chloride Anions on the Adsorption of Zinc in Some Calcareous Soils in Chaharmahal-va-Bakhtiari Province

Author(s)

Kiani Harcheghani S. Z. | Hosseinpur A. R. | Motaghian H. R. | Issue Writer Certificate

Keywords

Adsorption isothermsQ1

Distribution coefficientQ1

Freundlich equationQ2

Abstract

Adsorption is one of the most important processes controlling the concentration of zinc (Zn) in the soil solution. The presence of nutrient anions in the solution can affect Zn2+ adsorption. In this study, the effect of orthophosphate, nitrate and chloride anions on the Zn2+ adsorption in five calcareous soil samples of Chaharmahal-va-Bakhtiari province was investigated. In order to study the Zn Adsorption isotherms, solutions containing 25, 50, 75, 100, 150 and 200 mg/L Zn of ZnSO4 source were used in KH2PO4, KNO3 and KCl electrolytes (electrolytes concentration equal to 50 mM). The Freundlich, Langmuir, and linear equations were used to investigate the ability to describe the Zn adsorption. Based on the results, the Freundlich and Langmuir equations could describe the Zn adsorption. The results of this study showed that Zn in the presence of orthophosphate anion had the maximum adsorption capacity and an adsorption intensity higher than that of chloride and nitrate anions; meanwhile, in comparison with nitrate and orthophosphate anions, adsorption energy (k), maximum buffering capacity (MBC), and Distribution coefficient (kf) in the presence of chloride anion were higher (p< 0. 05). The results of this study, therefore, showed that in the presence of anion orthophosphate, Zn adsorbed more intensity and strongly, while adsorption energy was less than the presence of the other two anions. Therefore, it could be concluded that Zn and phosphate fertilizers should not be applied together in the soil.

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APA: Copy

Kiani Harcheghani, S. Z., Hosseinpur, A. R., & Motaghian, H. R.. (2019). The Effect of Orthophosphate‚ Nitrate, and Chloride Anions on the Adsorption of Zinc in Some Calcareous Soils in Chaharmahal-va-Bakhtiari Province. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 23(2 ), 55-72. SID. https://sid.ir/paper/395579/en

Vancouver: Copy

Kiani Harcheghani S. Z., Hosseinpur A. R., Motaghian H. R.. The Effect of Orthophosphate‚ Nitrate, and Chloride Anions on the Adsorption of Zinc in Some Calcareous Soils in Chaharmahal-va-Bakhtiari Province. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2019;23(2 ):55-72. Available from: https://sid.ir/paper/395579/en

IEEE: Copy

S. Z. Kiani Harcheghani, A. R. Hosseinpur, and H. R. Motaghian, “The Effect of Orthophosphate‚ Nitrate, and Chloride Anions on the Adsorption of Zinc in Some Calcareous Soils in Chaharmahal-va-Bakhtiari Province,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 23, no. 2 , pp. 55–72, 2019, [Online]. Available: https://sid.ir/paper/395579/en

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