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Adsorption of Copper and Cobalt on Bentonite and Kaolinite. | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 13, Issue 1, 2013, Pages 282-289 | ||
| Author | ||
| Basim Shaker Obaid Al-Obaidy | ||
| Abstract | ||
| Two laboratory experiments were carried out, the first one was to study the adsorption behavior of Copper and Cobalt on Bentonite and Kaolinite, by adding four concentrations of the two elements 50, 100, 150, and 200 mg/L to the minerals speratly. The adsorption was described by using three equations: Liner, Freundlich, and Langmuir. The second experiment was to study the relations of quantity and inatensity (Q/I) for Cu and Co and to calculate the buffer capacity of Bentonite and Kaolinite for the two elements by using Beckett method.The results of the first experiment showed that the concentration 200 mg/L gave the highest amount of adsorption for Cu and Co on the two minerals, and the concentration 50 mg/L gave the lowest amount of adsorption. According to Langmuir equation the maximum adsorption capacity of Cu and Co was higher in Bentonite than Kaolinite, and reaction rate constant of Bentonite was higher than Kaolinite for all three equations Liner, Freundlich, and Langmuir.The results of the second experiment indicated that the amount of Cu and Co adsorbed on Bentonite was about 10 times more than adsorbed amount on Kaolinite, and the buffer capacity of Cu and Co was higher in Bentonite than Kaolinite. | ||
| Keywords | ||
| copper; cobalt; Kaolinite | ||
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