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Environmental Engineering Research 2006;11(5): 285-291. DOI: https://doi.org/10.4491/eer.2006.11.5.285
EFFECT OF INLET LOADING RATE ON THE ELIMINATION OF HYDROGEN SULFIDE AND AMMONIA IN IMMOBILIZED CELL BIO FILTERS
Jung Hoon Kim1, Eldon R. Rene1, Seung Han Park2, and Hung Suck Park1
1Department of Civil and Environmental Engineering, University of Ulsan, P.O. Box 18 Ulsan 680-749, South Korea
2Safety Environmental Technology Team, SK Corporation Ltd, South Korea
Corresponding Author: Hung Suck Park ,Tel: +82-52-259-1050, Fax: +82-52-221-0152, Email: parkhs@ulsan.ac.kr
Received: April 11, 2006;  Accepted: July 12, 2006.
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ABSTRACT
Biofiltration is a simple, effective, economically viable and the most widely used gas treatment technique for treating malodors at low concentrations and high flow rates. This paper reports the performance of two lab scale immobilized cell biofilters operated in continuous mode for hydrogen sulfide (H2S) and ammonia (NH3) removal. The removal efficiency (RE, %) and the elimination capacity (EC, g/m3-hr) profiles were monitored by subjecting the biofilters to different loading rates of H2S (0.3 to 8 g/mJ-hr) and NH3 (0.3 to 4.5 g/mJ-hr). The removal efficiencies were greater than 99% when inlet loading rate to the biofilters were upto 6 gH2S/mJ-hr and 4 gNH3/mJ-hr respectively. The performance of the biofilters were also ascertained by conducting shock loading studies at a loading rate of 10 gH2S/mJ-hr and 6 gNEb/m^hr. The results from this study show high removal efficiency, good recuperating potential and stability of the immobilized microbial consortia to transient shock loads.
Keywords: Immobilized cell biofilter | Performance | Removal efficiency | Elimination capacity | Shock loading conditions
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