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Abstrakty
In recent years, many researchers have expressed interest in wastewater treatment using activated carbon produced from cheap raw materials. In this work, an activated carbo-aluminosilicate (ACS) – supported zero-valent iron (ZVI) composite was produced from Um AL-Rasa oil shale mine and examined to eliminate Chromium (VI) from contaminated water. Activation of raw oil shale fine particles (< 212 μm) was chemically performed using 95 and 5% wt of H2SO4 and HNO3, respectively, as activating agents. The activated material was further treated with caustic soda, named ACS, and modified with fine zero-valent iron particles < 212 μm), called ZVI/ACS composite. Kaolin was added to the composite with the ratio: (50 % wt. light kaolin: 50 % wt. ACS), named as ZVI/ACS/K. The XRD analysis for both composites confirmed iron dispersion at 45°. Adsorption experiments were carried out using the two adsorbents ZVI/ACS & ZVI/ACS/K under different values of pH, and adsorbent dosage. The results indicated that the reduction of Chromium was maximum under the 3 pH value and 2.0 gm amount of ZVI/ACS/K. Furthermore, it was found the removal rate was enhanced by 17% and 24.7% when ZVI/ACS & ZVI/ACS/K adsorbents were used, respectively, compared to that when only ACS adsorbent was used alone. Finally, the dependency of Chromium removal on its initial concentration by ZVI/ACS/K adsorbent was also investigated at two different temperatures of 27° and 50°. The results indicated a decrease in the removal rate of the Chromium as the concentration increased at 27°; however, the removal rate previously enhanced at 50° at all initial concentrations.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
131--139
Opis fizyczny
Bibliogr. 12 poz., rys.
Twórcy
autor
- Renewable Energy Technology Department, Applied Science Private University, Al Arab street, Amman 11931, Jordan
- School of Engineering, The University of Jordan, Queen Rania Street, Amman 11942, Jordan
autor
- Department of Science and Technology, National University College of Technology, Hamad Awad Al-Huneiti Street, Amman 11592, Jordan
autor
- School of Engineering, The University of Jordan, Queen Rania Street, Amman 11942, Jordan
autor
- Attarat Um Ghudran, Wasfi Al Tal Street, Amman 11822, Jordan
Bibliografia
- 1. El Zayat, M. 2009. Removal of heavy metals by using activated carbon produced from cotton stalks. American University in Cairo, Thesis. AUC Knowledge Fountain. https://fount.aucegypt.edu/retro_etds/2289
- 2. Sounthararajah, D.P., Loganathan, P., Kandasamy, J., Vigneswaran, S. 2015. Effects of humic acid and suspended solids on the removal of heavy metals from water by adsorption onto granular activated carbon. International Journal of Environmental Research and Public Health, 12(9), 10475–10489.
- 3. Yahya, M.D., Kehinde, S.O., Abdulkadir M.B., Iyaka Y.A., Olugbenga, A.G. 2020. Characterization of cobalt ferrite-supported activated carbon for removal of chromium and lead ions from tannery wastewater via adsorption equilibrium. Water Science and Engineering 13(3), 202–213.
- 4. He, X., Min, X., Peng, T., Zhao, F., Ke, Y., Wang, Y.Wang, J. 2020. Mechanochemically activated microsized zero-valent iron/pyrite composite for effective hexavalent chromium sequestration in aqueous solution, Journal of Chemical & Engineering Data, 65(4).
- 5. Qu, G., Kou, L., Wang, T., Liang, D., Hu, S. 2017. Evaluation of activated carbon fiber supported nanoscale zero-valent iron for Chromium (VI) removal from groundwater in a permeable reactive column. Environ. Manage, 202, 387.
- 6. Zhou, Y., Gao, B., Zimmerman, R., Chen, H., Zhang, M., Cao, X. 2014. Biochar-supported zero-valent iron for removal of various contaminants from aqueous solutions. Bioresource Technology, 152, 538–542.
- 7. Congbin X., Chen Y., Xiaodan L., Yali H, Xing X, Yurong Z, Zhi Q, Jianzhong Z, Zhengping H. 2021. Agar-stabilized sulfidated microscale zero-valent iron: Its stability and performance in chromate reduction, Journal of Hazardous Materials, 417.
- 8. Lv X., et al. 2011. Removal of Chromium (VI) from wastewater by nanoscale zero-valent iron particles supported on multiwalled carbon nanotubes. Chemosphere, 85.7, 1204–1209.
- 9. Shen, W., Zhang, J., Xiao, M., Zhang, X., Li, J., Jiang, W., Yan, J., Qin, Z., Zhang, S., He, W., He, Y. 2020. Ethylenediaminetetra acetic acid induces surface erosion of zero-valent iron for enhanced hexavalent chromium removal. Applied Surface Science, 525, 146593.
- 10. Dong, G., Zhu, Y., Zhang, Y., Shan, H., Xu, J. 2011. study in Spectrophotometric study on kinetics and thermodynamics of adsorption and catalytic transformation of K2Cr2O7 to K2CrO4 by natural hermit crab shell powder. Chemical Sciences Journal, 42.
- 11. Xi Y.F., Mallavarapu M., Naidu R. 2010. Reduction and adsorption of Pb2+ in aqueous solution by nano-zero-valent iron-a SEM, TEM and XPS study. Mater. Res. Bull., 45, 1361–1367.
- 12. Noraee, Z., Jafar, A., Ghaderpoori, M., Bahram, K., Ghaderpoury, A. 2019. Use of metal-organic framework to remove Chromium (VI) from aqueous solutions. Journal of Environmental Health Science and Engineering, 17, 701–709.
Uwagi
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-f8b41f28-0c39-4577-98c7-c1415856d842