Steady State, transient behavior and kinetic modeling of benzene removal in an aerobic biofilter

•Biofilter packed with cow dung compost and degraded benzene effectively.•The maximum elimination capacity of the biofilter was 141 g m−3 h-1.•Sudden fluctuations did not affect the operation of the biofilter.•The mass ratio of Pco2 to EC of benzene in all phase is 1.315.•Average thickness of the biofilm was found to be 1.89 mm.