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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
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Authors Affiliations
  1. 1. Environment Research Center, Isfahan University of Medical Sciences (IUMS), Department of Environmental Health Engineering, School of Health, IUMS, Isfahan, Iran
  2. 2. Studt. Research Center, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Chemical Engineering Department, College of Engineering, University of Isfahan, Isfahan, Iran
  4. 4. Department of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
  5. 5. Department of Environmental Health Engineering, School of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran

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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