EFFICIENCY COMPARISON OF MODIFIED-CLAY AND LIME-MARL IN THE ADSORPTION OF FLUORIDE FROM AQUEOUS SOLUTION

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SAMADI MOHAMMAD TAGHI; TARLANI AZAR MONIREH; ALMASI HALIMEH; SHANESAZ SAMANEH; HARATI ROYA

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Journal: Journal of Sabzevar University of Medical Sciences Year:2015 | Volume:22 | Issue:4 Page(s): 699-707

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Title

EFFICIENCY COMPARISON OF MODIFIED-CLAY AND LIME-MARL IN THE ADSORPTION OF FLUORIDE FROM AQUEOUS SOLUTION

Author(s)

Keywords

FLUORIDEQ2

CLAY-MODIFIEDQ2

LIME-MARLQ2

AQUEOUS SOLUTIONQ2

Abstract

Background & Objectives: FLUORIDE concentration in drinking water is one of the effective parameters in human health, and the majority of the body's requirement for FLUORIDE is supplied through drinking water. FLUORIDE in low concentration is essential for human but in high concentration is very hazardous for human health. In the present study, the efficiency of modified-clay and LIME-MARL as adsorbents was investigated for the elimination of FLUORIDE from AQUEOUS SOLUTION.Material & Methods: This experimental study was conducted at the Hamedan University of Medical Sciences in 2014. The effects of several parameters such as pH (4, 7 and 10), the adsorbent dosage (1, 5 and 10 g/L), initial concentration of FLUORIDE (5, 10 and 15 mg/L), contact time (15-120 min) on the removal have been studied. Also, the structural characteristics of both adsorbents were evaluated using X-ray diffraction (XRD) and Fourier transform infrared spectra (FT-IR).Results: According to the results obtained, the removal efficiency of FLUORIDE, at concentration 10 mg/L and the approximate time of 60 min, in the case of CLAY-MODIFIED adsorbent is 95.23% and in the case of LIME-MARL adsorbent is about 28.71%. Langmuir and Freundlich coefficients were determined in the optimum conditions, and the adsorption isotherm could be described by the Langmuir model (R2=0.9907). Kinetic study showed that the equilibrium time was 60 min. The adsorption kinetics fitted well with the Ho pseudo second-order kinetic model (R2=0.994).Conclusion: According to our finding, it is proposed that the adsorption process of FLUORIDE by CLAY-MODIFIED is very efficient and economics for FLUORIDE removal from AQUEOUS SOLUTION.

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APA: Copy

SAMADI, MOHAMMAD TAGHI, TARLANI AZAR, MONIREH, ALMASI, HALIMEH, SHANESAZ, SAMANEH, & HARATI, ROYA. (2015). EFFICIENCY COMPARISON OF MODIFIED-CLAY AND LIME-MARL IN THE ADSORPTION OF FLUORIDE FROM AQUEOUS SOLUTION. JOURNAL OF SABZEVAR UNIVERSITY OF MEDICAL SCIENCES, 22(4), 699-707. SID. https://sid.ir/paper/82087/en

Vancouver: Copy

SAMADI MOHAMMAD TAGHI, TARLANI AZAR MONIREH, ALMASI HALIMEH, SHANESAZ SAMANEH, HARATI ROYA. EFFICIENCY COMPARISON OF MODIFIED-CLAY AND LIME-MARL IN THE ADSORPTION OF FLUORIDE FROM AQUEOUS SOLUTION. JOURNAL OF SABZEVAR UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2015;22(4):699-707. Available from: https://sid.ir/paper/82087/en

IEEE: Copy

MOHAMMAD TAGHI SAMADI, MONIREH TARLANI AZAR, HALIMEH ALMASI, SAMANEH SHANESAZ, and ROYA HARATI, “EFFICIENCY COMPARISON OF MODIFIED-CLAY AND LIME-MARL IN THE ADSORPTION OF FLUORIDE FROM AQUEOUS SOLUTION,” JOURNAL OF SABZEVAR UNIVERSITY OF MEDICAL SCIENCES, vol. 22, no. 4, pp. 699–707, 2015, [Online]. Available: https://sid.ir/paper/82087/en

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