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Advances in Nano Research Volume 9, Number 3, October 2020 , pages 173-181 DOI: https://doi.org/10.12989/anr.2020.9.3.173 |
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Adsorption and electro-Fenton processes over FeZSM-5 nano-zeolite for tetracycline removal from wastewater |
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Hadi Adel Niaei and Mohammad Rostamizadeh
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| Abstract | ||
| Adsorption and heterogeneous electro-Fenton process using iron-loaded ZSM-5 nano-zeolite were investigated for the removal of Tetracycline (TC) from wastewater. The nano-zeolite was synthesized hydrothermally and modified through impregnation. The zeolite was characterized by XRD, FT-IR, FE-SEM, N2 adsorption-desorption, and NH3-TPD techniques. The equilibrium data were best represented by the Freundlich isotherm. The pseudo-second-order kinetic model was the most accurate model for the adsorption of TC on the modified nano-zeolite. The effect of parameters such as pH of solution and current density were investigated for the heterogeneous electro-Fenton process. The results showed that the current density of 150 mA and pH of 3 led to the highest TC removal (90.35%) at 50 min. The nano-zeolite showed the appropriate reusability. Furthermore, the developed kinetic model was in good agreement with the removal data of TC through the electro-Fenton process. | ||
| Key Words | ||
| adsorption; electro-Fenton; kinetic; nano-zeolite; pharmaceutical | ||
| Address | ||
| (1) Hadi Adel Niaei, Mohammad Rostamizadeh: Faculty of Chemical Engineering, Sahand University of Technology, Sahand New Town, Tabriz, Iran, P.O. Box: 51335-1996 (2) Hadi Adel Niaei, Mohammad Rostamizadeh: Research Center of Environmental Engineering, Sahand University of Technology, Sahand New Town, Tabriz, Iran, P.O. Box: 51335-1996 | ||