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Study on Synthesis and COD Removal of Fe-Ti Cross-linked Inorganic-bentonite in Simulation Wastewater

Xianlong Zhang

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Abstract

In this paper, Fe-Ti cross-linked inorganic-bentonite was synthesized and applied in treatment of simulation wastewater. The optimal experimental conditions for synthesis and adsorption COD in simulation wastewater were investigated by orthogonal experiment. The optimal preparation conditions were suspension concentration 3 %, Fe-Ti molar ratio 16:1, cross-linker/bentonite 15:1(mmol/g), reaction temperature 40 degree and reaction 3 hours. The optimal adsorption conditions were pH=3.0, the amount of adsorbent 14 g/L and stirring 30 minutes. Under the conditions, COD removal rate is 90.30 %. The result is satisfactory.

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What this paper is about

In this paper, Fe-Ti cross-linked inorganic-bentonite was synthesized and applied in treatment of simulation wastewater. The optimal experimental conditions for synthesis and adsorption COD in simulation wastewater were investigated by orthogonal experiment. The optimal preparation conditions were suspension concentration 3 %, Fe-Ti molar ratio 16:1, cross-linker/bentonite 15:1(mmol/g), reaction temperature 40 degree and reaction 3 hours. The optimal adsorption conditions were pH=3.0, the amount of adsorbent 14 g/L and stirring 30 minutes. Under the conditions, COD removal rate is 90.30 %. The result is satisfactory.

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Available abstract

In this paper, Fe-Ti cross-linked inorganic-bentonite was synthesized and applied in treatment of simulation wastewater. The optimal experimental conditions for synthesis and adsorption COD in simulation wastewater were investigated by orthogonal experiment. The optimal preparation conditions were suspension concentration 3 %, Fe-Ti molar ratio 16:1, cross-linker/bentonite 15:1(mmol/g), reaction temperature 40 degree and reaction 3 hours. The optimal adsorption conditions were pH=3.0, the amount of adsorbent 14 g/L and stirring 30 minutes. Under the conditions, COD removal rate is 90.30 %. The result is satisfactory.

Key concepts: Bentonite, Adsorption, Wastewater, Chemistry, Molar ratio, Suspension (topology), Nuclear chemistry, Chemical engineering

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