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Foroutan R, Mohammadi R, Adeleye AS, Farjadfard S, Esvandi Z, Arfaeinia H, Sorial GA, Ramavandi B, Sahebi S. Efficient arsenic(V) removal from contaminated water using natural clay and clay composite adsorbents. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:29748-29762. [PMID: 31407259 DOI: 10.1007/s11356-019-06070-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 07/25/2019] [Indexed: 05/25/2023]
Abstract
The natural clay is an abundant, accessible, and low-cost material that has the potential for use in the water and wastewater industry. In this paper, Iranian natural clay and clay/Fe-Mn composite were used to remove toxic arsenic from the liquid environment. The natural clay and clay/Fe-Mn composite were characterized by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), energy-dispersive X-ray (EDX), X-ray diffractometry (XRD), thermo-gravimetric analysis (TGA), and atomic force microscopy (AFM) techniques. The effects of parameters (initial pH, temperature, sorption dose, and contact time) on the efficiency and behavior of the arsenic(V) adsorption process were studied. Freundlich (R2 = 0.945 and 0.989), Langmuir (R2 = 0.922 and 0.931), modified Langmuir (R2 = 0.921 and 0.929), and Dubinin-Radushkevich (R2 = 0.706 and 0.723) models were fitted to evaluate the equilibrium data of arsenic(V) adsorption process by natural clay and clay/Fe-Mn composite, respectively. The Langmuir adsorption capacity of arsenic(V) by the natural clay and clay/Fe-Mn composite was determined to be 86.86 mg/g and 120.70 mg/g, respectively. The arsenic(V) adsorption process followed the pseudo-second-order model. Negative values of ΔG° and ΔH° showed that the arsenic(V) sorption by the studied materials is thermodynamically spontaneous and exothermic. According to the findings, the natural clay and clay/Fe-Mn are suitable and recyclable sorbents for arsenic(V) adsorption from aqueous solutions. Also, the composite of clay with iron and manganese can improve the efficiency of clay in the removal of arsenic.
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Affiliation(s)
- Rauf Foroutan
- Young Researchers and Elite Club, Bushehr Branch, Islamic Azad University, Bushehr, Iran
| | - Reza Mohammadi
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
| | - Adeyemi S Adeleye
- Bren School of Environmental Science & Management and University of California Center for Environmental Implications of Nanotechnology, University of California, Santa Barbara, CA, 93106-5131, USA
| | - Sima Farjadfard
- Department of Environmental Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zahra Esvandi
- Young Researchers and Elite Club, Bushehr Branch, Islamic Azad University, Bushehr, Iran
| | - Hossein Arfaeinia
- Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran
- Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - George A Sorial
- Environmental Engineering Program, Department of Chemical and Environmental Engineering, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, 45221-0012, USA
| | - Bahman Ramavandi
- Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran.
- Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran.
| | - Soleyman Sahebi
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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Foroutan R, Mohammadi R, Farjadfard S, Esmaeili H, Ramavandi B, Sorial GA. Eggshell nano-particle potential for methyl violet and mercury ion removal: Surface study and field application. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2019.06.034] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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