Abstract

BACKGROUND Industrial gaseous emissions causing odor nuisance has become a major environmental issue in many countries. Biotrickling filters are suitable for treating mixtures of gaseous compounds with high removal efficiencies. The aim of this work was to determine the vertical distribution of microbial communities established in a biotrickling filter treating a mixture of gaseous compounds causing odor nuisance, and to correlate its performance with the spatial and temporal distribution of inoculated bacteria.