Adsorption studies of copper from copper sulphate solution by carbon block ''Spheron 9'' were made under varying conditions of time and solution concentration. The results showed that adsorption equilibrium was established within two hours in case of copper solutions of 10-mu-g/ml concentration. In case of copper solutions of higher concentrations, however, equilibrium was attained after longer duration of time, which was thought to be due to high repulsive forces between copper ions adsorbed in large amounts from concentrated salt solutions, compared to that from dilute solutions.
M A KHAN ,Y I KHATTAK ,
You can use below filter to find your desired issue