حذف بخار تولوئن از هوا در يك بيوفيلتر (زيست صافي) تلقيح شده با قارچ فنروكائت كرايسوسپوريوم در شرايط بارگذاري ناپيوسته

Toluene Removal From Air in A Biofilter Inoculated With Phanerochaete chrysosporium Under Intermittent Loading

To investigate the performance of a compost biofilter treating toluene vapor during intermittent loading, a biofiltration system was set up. This system was inoculated with a special type of white-rot fungus, Phanerochaete chrysosporium. The system was operated 10 h a day on 0.096, 0.024, 0.06 m3/h of air flow rates, and 173.1 and 52.4 mg in3 of pollutant concentration. Maximum removal efficiency obtained about 92%. The fungal biofilter showed its robustness to the alterations in inlet toluene concentration and gas flow rate. The kinetic of biological reaction was studied by application of Monod type equation. The kinetic constants Km and mi are evaluated as 3.495 g m3 and 50 gmʹh1, respectively. The results confirmed that the fungal system could effectively remove toluene in such a harsh condition without adding excess nutrient solution and during intermittent loading.