Cadmium Chloride (mM) Percent removal of Phenol α-Naphthol s-PGP I-PGP s-PGP I-PGP 0.3 79 86 84 87 0.6 72 81 78 85 0.9 67 78 74 81 1.2 63 71 70 75 1.8 58 68 63 71 2.4 51 62 56 65 3.0 43 55 42 61

Table 2: Influence of cadmium chloride on the removal of Phenol and α-Naphthol by s-PGP and I-PGP. Phenol (5.0 mM, 10.0 mL) and α-Naphthol (0.5 mM, 10.0 mL) was treated by s-PGP and I-PGP (2.6 U/mL) in sodium phosphate buffer (100 mM, pH 6.5) in the presence of varying concentration of cadmium chloride (0.3 to 3.0 mM), H2O2 (0.8 mM) at 40°C for 2 h