3.2.3 Effect of particle size of powdered eggshells on sorption process
Determination of the effect of particle size on sorption was conducted using samples of three different average particle sizes: 50, 100 and 150 μm at pH 7 and temperature of 25°C for 90 minutes. The result is shown at Figure 6. As seen from Figure 6, variation of the particle size of powdered eggshells statisticaly has no significant effect on the adsorption of lignosulfonate compounds as indicated by 89 – 92%.