REMOVAL OF CR (VI) FROM AQUEOUS SOLUTIONS USING SEMNAN NATURAL CLINOPTILOLIT ZEOLITE

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JORFI SAHAND; JAFARZADEH HAGHIGHIFARD NEMATALLAH; AHMADI MOHAMMAD JAVAD; SHAHEIDAR NARJES; PURHOSEINI HAKIMEH

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Journal: Journal of Sabzevar University of Medical Sciences Year:2017 | Volume:24 | Issue:1 Page(s): 55-62

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Title

REMOVAL OF CR (VI) FROM AQUEOUS SOLUTIONS USING SEMNAN NATURAL CLINOPTILOLIT ZEOLITE

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Keywords

ADSORPTIONQ2

CLINOPTILOLITE ZEOLITEQ1

CR (IV)Q2

Abstract

Background & Objectives: Cr(IV) is a toxic heavy metal with dangerous effects on health and environment and is discharged through industrial effluents. The main aim of the current study was to determine the efficiency of natural zeolite on removal Cr (IV) from aqueous solutions.Materials & Methods: Following the chemical modification of Zeolite, the study variables including pH (2-10), adsorbent dosage (2-20 g/L), reaction time (5-150 min) and Cr (IV) concentration (10-50) were optimized according to the one at the time experimental design. The correlation of obtained data with conventional isotherms and kinetics were also studied.Results: In optimum pH 2, reaction time of 30 min and adsorbent dosages of 8 g/L, the most removal efficiency of 99.53% was observed for initial Cr (IV) concentration of 10 mg/L. The Freundlich isotherm and pseudo –second order kinetics were better fitted to the findings.Conclusions: According to findings of current study in lab scale, it can be concluded that natural Zeoliite can be considered as an efficient and cost effective alternative on treatment of effluents containing Cr (IV).

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APA: Copy

JORFI, SAHAND, JAFARZADEH HAGHIGHIFARD, NEMATALLAH, AHMADI, MOHAMMAD JAVAD, SHAHEIDAR, NARJES, & PURHOSEINI, HAKIMEH. (2017). REMOVAL OF CR (VI) FROM AQUEOUS SOLUTIONS USING SEMNAN NATURAL CLINOPTILOLIT ZEOLITE. JOURNAL OF SABZEVAR UNIVERSITY OF MEDICAL SCIENCES, 24(1), 55-62. SID. https://sid.ir/paper/82319/en

Vancouver: Copy

JORFI SAHAND, JAFARZADEH HAGHIGHIFARD NEMATALLAH, AHMADI MOHAMMAD JAVAD, SHAHEIDAR NARJES, PURHOSEINI HAKIMEH. REMOVAL OF CR (VI) FROM AQUEOUS SOLUTIONS USING SEMNAN NATURAL CLINOPTILOLIT ZEOLITE. JOURNAL OF SABZEVAR UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2017;24(1):55-62. Available from: https://sid.ir/paper/82319/en

IEEE: Copy

SAHAND JORFI, NEMATALLAH JAFARZADEH HAGHIGHIFARD, MOHAMMAD JAVAD AHMADI, NARJES SHAHEIDAR, and HAKIMEH PURHOSEINI, “REMOVAL OF CR (VI) FROM AQUEOUS SOLUTIONS USING SEMNAN NATURAL CLINOPTILOLIT ZEOLITE,” JOURNAL OF SABZEVAR UNIVERSITY OF MEDICAL SCIENCES, vol. 24, no. 1, pp. 55–62, 2017, [Online]. Available: https://sid.ir/paper/82319/en

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