The fate of the carbon from degraded pollutants in biofiltration is not well understood. The
issue of missing carbon needs to be addressed quantitatively to better understand and …

Octane was eliminated from contaminated air in a biofilter at concentrations ranging from
500–2,000 ppm, with a maximum elimination capacity of 90 g/m3 h. After periods of …

Uneven distribution and excess accumulation of biomass within gas phase biofilters often
result in operational problems such as clogging, channeling, and excessive head loss within …

Recent studies in the area of biological waste air treatment in biofilters have addressed
fundamental key issues such as microbial dynamics, microscopical characterization of the …

Biotechnology to purify air and waste gasses has been applied more frequently in recent
years, because they eliminate many of the drawbacks of classical physicalchemical …

Clogging due to biomass accumulation and the loss of structural stability of the packing
media are common operational drawbacks of standard gas biofiltration inherent to the …

OVER the last two decades, biofiltration has become a key component in the control of
odorous emissions from composting facilities, wastewater treatment plants, confined animal …

As confidence in gas biofiltration efficacy grows, ever more complex malodorant and toxic
molecules are ameliorated. In parallel, for many countries, emission control legislation …

The fraction of pollutant converted to CO 2 versus biomass in biofiltration influences the
process efficacy and the lifetime of the bed due to pressure drop increases. This work …

Biofilters have proven to be efficient in treating low to moderately high concentrations of
pollutants (< 5 gm‐3) over a rather wide range of gas‐flow rates. In this chapter we present a …