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2013•Advanced materials researchOpen access

Efficiency of Adsorption of Wastewater Containing Uranium by Fly Ash

Shi You Li, Shui Bo Xie, Cong Zhao, Ya Ping Zhang, Jin Xiang Liu, Ting Cai

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Abstract

The effects of pH, different initial concentrations of uranium and adsorption time were investigated to study the properties of the sorption of uranium by fly ash. The results show that pH value is the major factor of dominating adsorption rate. The highest adsorption capacity was obtained at pH 5 and the adsorption time was 60 minutes. The increasing of initial uranium concentration resulted in the decreasing of U removal rate and the increasing of adsorption quantity, and the maximum adsorption capacity was 8.38mg/g. The adsorption behavior accorded with both the Freundlich and Langmuir isotherms.

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The effects of pH, different initial concentrations of uranium and adsorption time were investigated to study the properties of the sorption of uranium by fly ash. The results show that pH value is the major factor of dominating adsorption rate. The highest adsorption capacity was obtained at pH 5 and the adsorption time was 60 minutes. The increasing of initial uranium concentration resulted in the decreasing of U removal rate and the increasing of adsorption quantity, and the maximum adsorption capacity was 8.38mg/g. The adsorption behavior accorded with both the Freundlich and Langmuir isotherms.

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Available abstract

The effects of pH, different initial concentrations of uranium and adsorption time were investigated to study the properties of the sorption of uranium by fly ash. The results show that pH value is the major factor of dominating adsorption rate. The highest adsorption capacity was obtained at pH 5 and the adsorption time was 60 minutes. The increasing of initial uranium concentration resulted in the decreasing of U removal rate and the increasing of adsorption quantity, and the maximum adsorption capacity was 8.38mg/g. The adsorption behavior accorded with both the Freundlich and Langmuir isotherms.

Key concepts: Adsorption, Uranium, Freundlich equation, Sorption, Fly ash, Langmuir, Wastewater, Chemistry

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