Tested bacterial isolates Tested pollutant(s) Tested concentration (mg l-1)   Determination of maximum biodegradation capacities   All bacterial isolates (M1 – M9) Phenol 500, 1000, 1500, 1700 and 2000   Pyridine 500, 1000, 2000, 3000, 4000 and 5000   Determination of the phenol biodegradation rate   M2, M3, M4, M5 and M7 Phenol 1000   Determination of the optimum phenol concentration for biodegradation   M4 Phenol 500, 1000, 1250 and 1500

Table 1: Summary of the tested bacterial isolates and pollutants for maximum biodegradation capacities, phenol biodegradation rate and optimum phenol concentration for biodegradation at pre-optimized conditions of pH (7±0.2), temperature (28±2oC) and agitation (150 rpm).