TY - JOUR
AU - Swaminathan, T.
AB - Biofiltration is an aerobic degradation process in which a well-humidified contaminated air stream is passed through a porous packed medium that supports a thriving population of microbes. The removal of benzene vapor was investigated in a laboratory-scale biofilter packed with compost, inoculated with a mixed microbial consortium. This biofilter was operated continuously in six different phases for a period of 8 months at different flow rates, 0.024–0.144 m3 h−1 with benzene concentrations ranging up to 1.7 g m−3. Under steady-state conditions, the removal efficiencies (REs) in the biofilter was consistently greater than 78% when benzene loading was less than 20 g m−3 h−1. The maximum elimination capacity (EC) achieved in this study is 64 g m−3 h−1 at an inlet loading rate of 128 g m−3 h−1. The response of the biofilter to shutdown, restart operations and fluctuations in inlet concentration, and flow rate was determined by subjecting the biofilter to inlet loads of up to 120 g m−3 h−1. The biofilter responded effectively to these loading conditions and was found to recover rapidly. The results from this study suggest that a compost biofilter is effective in treating benzene vapor under steady- and transient-conditions.
TI - Steady- and transient-state effects during the biological oxidation of gas-phase benzene in a continuously operated biofilter
JO - Clean Technologies and Environmental Policy
DO - 10.1007/s10098-009-0257-9
DA - 2009-09-11
UR - https://www.deepdyve.com/lp/springer-journals/steady-and-transient-state-effects-during-the-biological-oxidation-of-8IV1ajIyot
SP - 525
EP - 535
VL - 12
IS - 5
DP - DeepDyve
ER -