Influence of Intermittent Loading on the Removal of High Concentrations of VOCs in a Biofilter

S. M. Zamir(1*), R. Halladj(2), M. Ferdowsi(3)

(1) Faculty of chemical engineering, Amirkabir university of technology, Tehran, Iran, Islamic Republic of
(2) Faculty of chemical engineering, Amirkabir university of technology, Tehran, Iran, Islamic Republic of
(3) Faculty of chemical engineering, Amirkabir university of technology, Tehran, Iran, Islamic Republic of
(*) Corresponding author


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Abstract


In this research, the elimination of a mixture of toluene and hexane vapors from waste air was studied in a compost biofilter under intermittent condition. The system was operated 10 h a day on the air residence times 0.9, 1.5 and 3 min and 2-3.8 gm-3 of pollutant concentration. Regarding the harsh biological condition of biofilter media such as high pollutant concentration and daily intermittent aeration, reaching the steady-state situation and removal efficiency of 90% lasted about 44 days.
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Keywords


Biofilter; Compost; Intermittent Loading; VOC

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