Question 1 EXAMPLE 12.1-1. Adsorption Isotherm for Phenol in Wastewater Batch tests were performed in the laboratory using solutions of phenol in water and particles of granular activated carbon (R5). The equilibrium data at room temperature are shown in Table 12.1-1. Determine the isotherm that fits the data. TABLE 12.1-1. Equilibrium Data for Example 12.1-1 (R5) C, kg phenol kg phenol msolution kg carbon 4, 0.322 0.117 0.039 0.0061 0.0011 0.150 0.122 0.094 0.059 0.045