Original Articles: 2012 Vol: 4 Issue: 2
Adsorption of Cu(II) by Used Aqua Guard Carbon(UAC)
Abstract
Used Aquaguard Carbon(UAC) was used to remove Cu(II) from aqueous solution. The influence of contact time, suspension pH, temperature, UAC/ Cu(II) dosage on Cu(II) removal were investigated in a series of batch adsorption experiments. Adsorption data was found to follow Langmuir isotherm and pseudo second order kinetics. Thermodynamic parameters were evaluated from temperature experiments. Activation energy was found to be 77.4 kJ/mol. Adsorption data was interpreted kinetically and was found to be controlled both by physio-soption as well as intra particle diffusion. The Cu(II) uptake was found to be suppressed in presence of Co-ions and follows a trend Ni>Zn>Co.