Khodabakhshi, A. and Amin, M.M. and Mozaffari, M. (2011) SYNTHESIS OF MAGNETITE NANOPARTICLES AND EVALUATION OF ITS EFFICIENCY FOR ARSENIC REMOVAL FROM SIMULATED INDUSTRIAL WASTEWATER. IRANIAN JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING, 8 (3). pp. 189-200.
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Abstract
In this study the efficiency of magnetic nanoparticles for removal of trivalent arsenic from synthetic industrial wastewater was evaluated. The nanoparticles was prepared by sol-gel method and characterized by X-ray methods including XRD, XRF, and SEM, and vibrating sample magnetometer (VSM). The results showed that synthesized nanoparticles were in the size range of 40-300 nm, purity of about 90%, and magnetization of nanoparticles was 36.5emu/g. In initial conditions including: pH=7, As(III) concentration of 10 mg/L, nanomagnetite concentration of 1g/L, shaking speed of 250 rpm and 20 minute retention time, 82% of As (III) was removed. Competition from common coexisting ions such as Na+, Ni2+, Cu2+, SO42-, and Cl- was ignorable but for NO3- was significant. The adsorption data of magnetite nanoparticles fit well with Freundlich isotherm equations. The adsorption capacity of the Fe3O4 for As (Ill) at pH=7 was obtained as 23.8 mg/g. It was concluded that magnetite nanoparticles have considerable potential in removal of As(III) from synthetic industrial wastewaters.
Item Type: | Article |
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Uncontrolled Keywords: | Adsorption; Arsenic; Industrial wastewater; Magnetite nanoparticles |
Subjects: | WA Public Health > Public Health Education WA.18 > WA 30 Social, Economic, and Environmental factor in public health WA Public Health > WA 30 Social, Economic, and Environmental factor in public health QT physiology > physics.mathematics.engineering |
Divisions: | Faculty of Health > Department of Environmental Health |
Depositing User: | zahra bagheri . |
Date Deposited: | 16 Aug 2017 04:09 |
Last Modified: | 16 Aug 2017 04:09 |
URI: | http://eprints.skums.ac.ir/id/eprint/3099 |
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