Abstract
Results of industrial exploitation of a biofiltration plant tailored for purifying gaseous discharges of hazardous organic components such as toluene, cyclohexane, and xylene, are examined. Both numerical and compositional variations were monitored for a long-term (more than 1.5 years) utilization process in an association of microorganisms decomposing organic pollutants. A population of microbial association composed by one yeast and two bacterial strains in the biofilm on the surface of filtering sheets was abundant (108–109 yeast cells/cm2 and 1010–1011 bacterial cells/cm2) and stable during the whole period of monitoring. A microbial association in the culture medium averaging 106 yeast cells/l and 108 bacterial cells/l is more susceptible to technogenic impacts and seasonal fluctuations. Overall, the biofilter as an open and autonomic system maintained its microbial association, thereby providing high-degree (93–98%) purification of industrial gaseous discharges from organic pollutants.
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Vinarov, A.Y., Robysheva, Z.N., Smirnov, V.N. et al. Studies of the Stability of Microbial Association Use in Industrial Biofiltering of Gaseous Discharges. Applied Biochemistry and Microbiology 38, 445–449 (2002). https://doi.org/10.1023/A:1019968418587
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DOI: https://doi.org/10.1023/A:1019968418587