—In this study, a biotrickling filter (BF) packed
with 32 to 64 liters of wood chips with average sizes
2.03cm×2.25cm, wet packing density 470 kg/m3, void fraction
0.57, and specific surface area 300 m2/m3 was tested for the
removal of < 10 ppm THC (total hydrocarbon, expressed as
methane equivalent) in gases vented from a field zeolite rotary
concentrator for waste gas treatment in a TFT-LCD
manufacturing plant. Results indicate that with operation
parameters of EBRT (empty bed retention time) 2.0 s, pH
6.5-8.0, and daily nutrition milk 0.11 L/m3 chips (10 g milk
powder/m3 chips), 50% THC in the influent gas could be
removed. It was estimated that around 0.016 USD is required
for treating 1000 m3 of the vented gas from concentrators with
a gas flow of 2,000 Nm3/min.
—Biotrickling filter, volatile organic compounds,
Ching-Yi Wu and Ming-Shean Chou are with the Institute of
Environmental Engineering of National Sun Yat-sen University, 804,
Taiwan (e-mail: email@example.com, firstname.lastname@example.org).
Cite:Ching-Yi Wu and Ming-Shean Chou, "Biofiltrtion of VOCs in an Effluent Gas from Zeolite Rotor Concentrator," International Journal of Environmental Science and Development vol. 5, no. 1, pp. 56-59, 2014.