Design and development of horizontal airflow biofilters for controlling odour from livestock facilities

• Autores: C. S. Ima, D. D. Mann
• Localización: Biotechniques for air pollution control: proceedings of the international congress Biotechniques for Air Pollution Control : A Coruña, Spain, October 5-7, 2005 / Christian Kennes (dir. congr.), María C. Veiga (dir. congr.), 2005, ISBN 84-9749-163-7, págs. 299-304
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • As the livestock industry expands rapidly across the globe, maintaining a sustainable environment through an efficient odour control system becomes very necessary. This is mostly because many livestock facilities produce several odorous gases, which are offensive and tend to evoke emotional response from any neighbourhood subjected to them. The conventional methods of waste air treatment are expensive for the current operation of livestock units. An alternative technique that might be affordable to the livestock farmer is biofiltration. Constant airflow is very important for optimum biofilter operation. Otherwise, anaerobic conditions will develop. Extensive research has been conducted to determine the airflow characteristics of different materials. The results obtained show that there is more resistance to airflow in vertical direction than in horizontal direction for most materials. This is because most materials tend to lie with their major axes horizontal when loaded from the top of a vessel. For biofilter operation, this observation implies that it would be more economical to move air horizontally than vertically. This paper will discuss the design and development of horizontal airflow biofilters fitted to a commercial swine facility for odour control. This paper will also highlight future biofiltration project.