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저자정보
Mojiri, Amin (Institute for Infrastructure Engineering and Sustainable Management [IIESM], Universiti Teknologi Mara [UiTM]) Hui, Wang (School of Environmental Science and Engineering, Shanghai Jiao Tong University) Arshad, Ahmad Kamil (Institute for Infrastructure Engineering and Sustainable Management [IIESM], Universiti Teknologi Mara [UiTM]) Ridzuan, Ahmad Ruslan Mohd (Institute for Infrastructure Engineering and Sustainable Management [IIESM], Universiti Teknologi Mara [UiTM]) Hamid, Nor Hayati Abdul (Institute for Infrastructure Engineering and Sustainable Management [IIESM], Universiti Teknologi Mara [UiTM]) Farraji, Hossein (School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia [USM]) Gholami, Ali (Department of Soil Science, Ahvaz Branch, Islamic Azad University) Vakili, Amir Hossein (Department of Civil Engineering, Faculty of Engineering, Zand Institute of Higher Education)
저널정보
테크노프레스 Advances in environmental research Advances in environmental research 제6권 제3호
발행연도
2017.1
수록면
173 - 187 (15page)

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Heavy metals, such as vanadium, are some of the most toxic types of water contaminants. In this study, vanadium was removed using a new composite adsorbent called BAZLSC. The impacts of pH and initial concentration of vanadium(V) on the elimination effectiveness of this metal by using BAZLSC were investigated in the first step of the study. Vanadium removal increased as pH increased to 3-3.5, and initial concentration increased to 60-70 mg/L. The removal efficiency then decreased. Central composite design and response surface methodology were employed to examine experimental data. Initial concentration of V ($mg.L^{-1}$), pH, and dosage of adsorbent (g/L) were the independent factors. Based on RSM, the removal effectiveness of vanadium was 86.36% at the optimum of initial concentration (52.69 mg/L), pH (3.49), and adsorbent dosage (1.71 g/L). Also adsorption isotherm investigations displayed that the Freundlich isotherm could explain vanadium adsorption by BAZLSC better than the Langmuir isotherm. Beside them, desorption studies showed sorption was slightly diminished after six continuous cycles.

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