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首页> 外文期刊>Journal of industrial and engineering chemistry >Kinetic and thermodynamic studies on the removal of Cu(II) ions from aqueous solutions by adsorption on modified sand
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Kinetic and thermodynamic studies on the removal of Cu(II) ions from aqueous solutions by adsorption on modified sand

机译：改性砂吸附去除水溶液中Cu（II）离子的动力学和热力学研究

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Studies on the removal of copper by adsorption on modified sand have been investigated. The adsorbent was characterized by XRD, FTIR and SEM. Removal of Cu was carried out in batch mode. The values of thermodynamic parameters namely ΔG~0, ΔH~0 and ΔS~0 at 25 °C were found to be-0.230 kcal~(-1) mol~(-1) +4.73 kca~(-1) mol~(-1) and +16.646 cal K~(-1) mol~(-1), respectively. The process of removal was governed by pseudo second order rate equation and value of k2 Was found to be 0.122 g mg~(-1) min~(-1) at 25 °C. The resultant data can serve as baseline data for designing treatment plants at industrial scale.
机译：已经进行了通过在改性砂子上吸附去除铜的研究。用XRD，FTIR和SEM对吸附剂进行表征。铜的去除以间歇方式进行。发现在25°C下的热力学参数ΔG〜0，ΔH〜0和ΔS〜0值为-0.230 kcal〜（-1）mol〜（-1）+4.73 kca〜（-1）mol〜（ -1）和+16.646 cal K〜（-1）mol〜（-1）。去除过程由伪二级速率方程控制，在25°C下k2值为0.122 g mg〜（-1）min〜（-1）。所得数据可用作设计工业规模处理厂的基准数据。

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