Examination of the long-term process for purifying gaseous discharges in industrial biofilter

Results of industrial exploitation of the biofilter unit for purifying gaseous discharges of hazardous organic substances are examined. A population of microbial associated composed by selected strains of yeast and bacterial cells in the biofilm on the surface of the filtering sheets and in the liquid phase were monitoring for a long-term (about 2 years) utilization process in industrial biofilter. Overall, the biofilter with productivity 12,000-15,000 m3 purified flow per hour and very low energy consumption (0.3-0.4 wt.h/m3) as an open and autonomic system maintained its microbial association, thereby providing high degree (93-96%) purification of industrial gaseous discharges from organic pollutants.