Author/Authors :
Amin، Mohammad Mehdi نويسنده , , Rahimi، Amir نويسنده he is working onmodeling and solution methods, including exact procedures, meta-heuristic algorithms and artificial intelligence techniques. Hamid Kar , , Bina، Bijan نويسنده , , Heidari، Mohsen نويسنده 1Environment Research Center, Isfahan University of Medical Sciences (IUMS) and Department of Environmental Health Engineering, School of Health, IUMS, Isfahan, Iran 2Student Research Center, School of Health, Isfahan University of Medical Sciences, Isfahan, IranDepartment of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran , , Mohammadi Moghadam، Fazel نويسنده Department of Environmental Health Engineering, School of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran ,
Abstract :
The removal of xylene vapors was studied in a biofilter packed with a new hybrid (scoria/compost) packing material at
various inlet loads (IL) and empty bed residence times (EBRT) of 90, 60, and 40s. The best performance was observed for
EBRT of 90s, where a removal efficiency of 98% was obtained under steady state condition for inlet xylene concentration
of 1.34 g m?3, while a maximum elimination capacity of 97.5 g m?3 h?1 was observed for IL of 199.5 g m?3 h?1. Carbon
dioxide production rates and the microbial counts for xylene-degraders followed xylene elimination capacities. Overall
look to the results of this study indicates that the scoria/compost mixture could be considered as a potential biofilter
carrier, with low pressure drop (here < 4 mm H2O), to treat air streams containing VOCs.
