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Study on Adsorption of Sr+2 and Co+2 Ions from Aqueous Solution by using Modified Bagasse |
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PP: 87-94 |
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doi:10.18576/jrna/050202
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Author(s) |
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M. Abdel Geleel,
Amaal A. Tawfik,
N. Abdel Monem,
Georgena R. Erian,
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Abstract |
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| Radioactive wastes are produced from various sources such as production and application of radioisotopes in medicine, industry, research and agriculture. 90Sr and 60Co are considered as low level liquid waste which can effect on human health and environment. According to the fact of the chemical behavior of radioactive liquid waste that containing 90Sr and 60Co is chemically similar that the waste containing Sr+2 and Co+2. So that the adsorption of Sr+2 and Co+2 ions from aqueous solution by bagasse as by-product solid waste was investigated in this study. The investigation was performed by using untreated bagasse and treated bagasse with 1 M KOH or 1 M HCl and studying the various effects of the preparation conditions on adsorption process such as: Initial pH, Contact Time, Initial Concentration of Adsorbate, Adsorbents Dose and Adsorption Temperature. The optimum adsorption of Sr+2 and Co+2 was founded at pH 6.5 and pH 5 respectively in equilibrium time 30 minutes. The maximum amount of adsorption of Sr+2 by using bagasse without treatment and with treated by HCl and KOH found to be 4.65, 4.58 and 4.77 respectively, while for Co+2 was 3.1, 1.6 and 3.86 respectively. The characterizations of adsorbent have done by Fourier Transform Infrared (FTIR) and Scanning Electron Microscope (SEM). The equilibrium data were applied on Langmuir and Freundlich isotherm models and the values of their corresponding constants were evaluated from the slopes and intercepts of their respective plots. The isotherm data can be best described by the Langmuir equation.
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