Design and analysis of a pilot scale biofiltration system for odorous air
Three pilot-scale biofilters and necessary peripheral equipment were built to clean odorous air from the pit of a swine gestation building at North Carolina State University. A computer measured temperatures, flow rates, and pressure drops. It also controlled and measured the moisture content of a biofilter medium comprised of a 3:1 mixture of yard waste compost to wood chips mixture (by volume). The system was evaluated to ensure that the biofilters would be useful for performing scientific experiments concerning the reduction of swine odor on future research projects. The capability of the biofilters to remove odor was measured using a cotton swatch absorption method and an odor panel. The average odor reductions measured by odor intensity, irritation intensity, and unpleasantness for five tests were 61%, 58%, and 84%, respectively. No significant differences in odor reduction performance were found between the biofilters.
- Research Organization:
- North Carolina State Univ., Raleigh, NC (US)
- OSTI ID:
- 20080246
- Journal Information:
- Transactions of the ASAE, Journal Name: Transactions of the ASAE Journal Issue: 1 Vol. 43; ISSN TAAEAJ; ISSN 0001-2351
- Country of Publication:
- United States
- Language:
- English
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