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Information Journal Paper

Title

Investigating and studying the reduction of calcium from hard water by flame photometer method using modified zeolite 13X sorbent

Pages

  37-47

Abstract

 In this research, for the first time Zeolite 13X, as an environmentally benign sorbent, was used in the removal of calcium cations by Flame photometer method. In order to improve the performance of the absorbent, different modifiers were used. Row and Modified sorbents were characterized by Fourier transform infrared )FT-IR), X ray Diffraction )XRD), field emission scanning electron microscopy )FESEM) equipped with an energy dispersive X-ray spectroscopy )EDS(, Elemental mapping, and Brunauer– Emmett– Teller )BET( analysis. The result of different sorbents indicated that, Zeolite 13X modified with NaOH )1M) and EDTA )0. 2 M), showed the best performance in the removal of calcium as high as 89. 74%. Moreover, the central composite design )CCD) defined under response surface methodology, was applied to investigate the combined influences of adsorption parameters consist of pH, contact time, concentrations of Calcium in solution, and amount of adsorbent. Investigation of experimental results using ANOVA analysis revealed that concentrations and amount of adsorbent were more effective variables than all of other parameters to calcium removal from aqueous solution. Also, adsorption behavior of Calcium was evaluated by the Langmuir and Freundlich isotherm models. For the adsorption of calcium, Langmuir adsorption model was the best model with R2 equal to 0. 9998. Hence, according to the results and high efficiency of sorbents for the removal of calcium, use of this technique and process is recommended for calcium removal from hard water.

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    APA: Copy

    KHODADADI, BAHAR, Aghamiri, Fatemeh, & BORDBAR, MARYAM. (2020). Investigating and studying the reduction of calcium from hard water by flame photometer method using modified zeolite 13X sorbent. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 14(1 ), 37-47. SID. https://sid.ir/paper/411884/en

    Vancouver: Copy

    KHODADADI BAHAR, Aghamiri Fatemeh, BORDBAR MARYAM. Investigating and studying the reduction of calcium from hard water by flame photometer method using modified zeolite 13X sorbent. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2020;14(1 ):37-47. Available from: https://sid.ir/paper/411884/en

    IEEE: Copy

    BAHAR KHODADADI, Fatemeh Aghamiri, and MARYAM BORDBAR, “Investigating and studying the reduction of calcium from hard water by flame photometer method using modified zeolite 13X sorbent,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 14, no. 1 , pp. 37–47, 2020, [Online]. Available: https://sid.ir/paper/411884/en

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