Reduction of ammonia and volatile organic compounds from food waste-composting facilities using a novel anti-clogging biofilter system
- Authors
- Ryu, Hee Wook; Cho, Kyung-Suk; Lee, Tae-Ho
- Issue Date
- Apr-2011
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Biofilter; Anti-Clogging; Agitation; Ammonia; Volatile organic compounds
- Citation
- BIORESOURCE TECHNOLOGY, v.102, no.7, pp.4654 - 4660
- Journal Title
- BIORESOURCE TECHNOLOGY
- Volume
- 102
- Number
- 7
- Start Page
- 4654
- End Page
- 4660
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/13689
- DOI
- 10.1016/j.biortech.2011.01.021
- ISSN
- 0960-8524
- Abstract
- The performance of a pilot-scale anti-clogging biofilter system (ABS) was evaluated over a period of 125 days for treating ammonia and volatile organic compounds emitted from a full-scale food waste-composting facility. The pilot-scale ABS was designed to intermittently and automatically remove excess biomass using an agitator. When the pressure drop in the polyurethane filter bed was increased to a set point (50 mm H(2)O m(-1)), due to excess biomass acclimation, the agitator automatically worked by the differential pressure switch, without biofilter shutdown. A high removal efficiency (97-99%) was stably maintained for the 125 days after an acclimation period of 1 week, even thought the inlet gas concentrations fluctuated from 0.16 to 0.55 g m(-3). Due the intermittent automatic agitation of the filter bed, the biomass concentration and pressure drop in the biofilter were maintained within the ranges of 1.1-2.0 g-DCW g PU(-1) and below 50 mm H(2)O m(-1), respectively. (C) 2011 Elsevier Ltd. All rights reserved.
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