Four different biofilter packing materials (two porous ceramics, perlite, and open pore polyurethane foam) were compared for the removal of toluene vapors. The focus was on evaluating performance at relatively short gas retention time (13.5 and 27 sec). The reactors were initially operated as biotrickling filters with continuous feeding and trickling of a nutrient solution. After significant pl...

High efficiency of NH3 and H2S removal from waste gases was achieved by the biotrickling filter. Granular activated carbon (GAC), inoculated with Arthrobacter oxydans CH8 for NH3 removal and Pseudomonas putida CH11 for H2S removal, was used as packing material. Under conditions in which 100% H2S was removed, extensive tests to eliminate high concentrations of NH3 emission-including removal char...

Biofilters (BFs) and biotrickling filters (BTFs) are two types of bioreactors used for treatment volatile organic compounds (VOCs). Both BFs BTFs use packing materials in which various microorganisms immobilised. The water phase is stationary to maintain the humidity materials, while have a mobile liquid phase. Optimisation irrigation crucial effective performance BTFs. A literature review pres...