Removal of copper and cadmium using industrial effluents in continuous column studies by mixed adsorbent
Authors: Srinivas Tadepalli1*, Masresha Temeselew Letik 2
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Continuous column study experiments were conducted for both copper and cadmium in packed bed column and the parameters such as effect of bed height (12, 24, 36cm) at fixed volumetric flow rate of 10 ml/min, and effect of volumetric flow rate (10, 20,30 ml/min) at fixed bed height of 36 cm were carried out and the breakthrough curves were plotted in terms of Ce/Co vs time. The break through time at 12, 24, 36 cm and 10 ml/min for Cu (II) were 50, 90, and 150 min respectively. The saturation time for Cu (II) at 12, 24, 36cm and 10 ml/min were 420, 480, and 600 min respectively. Similarly the break through time for Cd (II) at 12, 24, 36 cm and 10 ml/min were 50, 60, and 90 min respectively. The saturation time for Cd (II) at 12, 24, 36 cm and 10 ml/min were 210-240, 330-360, and 390-420 min, respectively. The optimized breakthrough curves were obtained at 36 cm bed height and 10 ml/min for both the metals copper and cadmium.
Key words: Column study, copper, cadmium, packed bed column, Effect of bed height, Volumetric flow rate, breakthrough curves, saturation time