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Performance Evaluation of a Scoria-Compost Biofilter Treating Xylene Vapors Publisher



Amin MM1, 2 ; Rahimi A3 ; Bina B1, 2 ; Heidari M1, 2, 4 ; Mohammadi Moghadam F5
Authors

Source: Journal of Environmental Health Science and Engineering Published:2014


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-3h-1was observed for IL of 199.5 g m-3h-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. © 2014 Amin et al.
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