Continuous Fixed Bed Column Adsorption of Copper (II) Ions from Aqueous Solution by Calcium Carbonate

J. Thilagan, A. Vimal Kumar, K. Rajasekaran, C. Raja
2015 International Journal of Engineering Research and  
The fixed bed column adsorption study was conducted in a column of 35 cm height, 2 cm inner diameter in which aqueous solution of copper (II) ions of concentration 20 mg/L at a constant flow rate of 10 mL/minute passed upwards through calcium carbonate bed of depth 10 cm. The break through time and exhaust time were found to be 153 and 344 minutes respectively. The time required for the formation of adsorbent zone was estimated as 85.95 minutes. The adsorption zone height was found to be 5.63
more » ... found to be 5.63 cm and the degree of saturation of the adsorbent bed was estimated as 69%. The rate at which the adsorption zone was moving through the bed was 1.77 cm/hour. The adsorption rate constant (K) was found out as 0.072 L/mg hour and adsorption capacity coefficient (N) as 1555.63 mg/L. The concentrations of heavy metal ions before and after adsorption process were measured by Atomic absorption spectroscopy. Almost 100 % removal of copper (II) ions was achieved during the experimental study. The adsorptive removal of copper (II) ions by CaCO3 was found effective and economic and can be applied for industrial waste water treatment.
doi:10.17577/ijertv4is120456 fatcat:kspwuwngkvb4zg24dcz64qtnua