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Article

Accumulation of Vanadium by Nanoscale Zero-Valent Iron Supported by Activated Carbon under Simulation Water Conditions: A Batch Study

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Henan International Joint Laboratory of New Civil Engineering Structure, School of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
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School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power (NCWU), Zhengzhou 450046, China
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College of Civil Engineering, Guangzhou University, Guangzhou 510006, China
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Laboratory of Functional Molecular and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Laura Bulgariu
Water 2022, 14(18), 2867; https://doi.org/10.3390/w14182867
Received: 21 August 2022 / Revised: 9 September 2022 / Accepted: 11 September 2022 / Published: 14 September 2022
(This article belongs to the Section Wastewater Treatment and Reuse)
Vanadium (V(V)) removal from simulation water (SW) was successfully accomplished using nanoscale zero-valent iron that was immobilized by activated carbon (NZVI/AC) which was used as an adsorbent. We investigated the effects of different parameters on V(V) removal, such as pH, dissolved oxygen (DO), common ions and adsorption kinetics for SW. The intraparticle diffusion model fits this study well (R2 > 0.9) according to the results of the kinetics investigation which showed that the adsorption of vanadium by NZVI/AC was rapid in the first 12 h and that equilibrium was reached in about 72 h. The amount of V(V) that was removed from the solution increased when it was subjected to pH 2 to pH 8, and this decreased after pH 8. While the effects of other anions and humic acid were negligible, the elimination of V(V) was significantly reduced by using phosphate and silicate. Fe2+ and Al3+, two common metal cations, improved the V(V) adsorption. High oxygen levels impeded the vanadium elimination, while anoxic conditions encouraged it. Elution with 0.1 M NaOH can be used to renew NZVI/AC in an efficient manner. View Full-Text
Keywords: nanoscale zero-valent iron supported by activated carbon (NZVI/AC); intraparticle diffusion; adsorption kinetics; vanadium (V) nanoscale zero-valent iron supported by activated carbon (NZVI/AC); intraparticle diffusion; adsorption kinetics; vanadium (V)
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MDPI and ACS Style

Huang, Q.; Fu, S.; Zhu, H.; Song, H.; Yang, Z.; Zhang, X.; Bie, J.; Lu, J.; Shi, M.; Liu, B. Accumulation of Vanadium by Nanoscale Zero-Valent Iron Supported by Activated Carbon under Simulation Water Conditions: A Batch Study. Water 2022, 14, 2867. https://doi.org/10.3390/w14182867

AMA Style

Huang Q, Fu S, Zhu H, Song H, Yang Z, Zhang X, Bie J, Lu J, Shi M, Liu B. Accumulation of Vanadium by Nanoscale Zero-Valent Iron Supported by Activated Carbon under Simulation Water Conditions: A Batch Study. Water. 2022; 14(18):2867. https://doi.org/10.3390/w14182867

Chicago/Turabian Style

Huang, Qiang, Shuai Fu, Huijie Zhu, Huaihui Song, Zhe Yang, Xiuji Zhang, Junhong Bie, Jianhong Lu, Mingyan Shi, and Bo Liu. 2022. "Accumulation of Vanadium by Nanoscale Zero-Valent Iron Supported by Activated Carbon under Simulation Water Conditions: A Batch Study" Water 14, no. 18: 2867. https://doi.org/10.3390/w14182867

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