Biofilters are used on mechanically ventilated livestock buildings to treat the ventilation air. A bed of biological material, normally wood chips, is created and the ventilation air flows through the material. Gases are absorbed by cultures of microbes that develop in the bed.
This fact sheet is part of the Air Management Practices Assessment Tool (AMPAT) developed at Iowa State University and funded by the National Pork Board. Additional resources can be found on the AMPAT web page at: www.agronext.iastate.edu/ampat
Air Management Practices Assessment Tool (AMPAT)
Iowa State University Extension and Outreach
Farm Management, Manure and Air Quality, AMPAT, Air Management Practices Assessment Tool
Agriculture | Bioresource and Agricultural Engineering
Iowa State University Extension and Outreach publications in Digital Repository @ Iowa State University are made available for historical purposes only. The information contained in these publications may be out of date. For current publications and information from Iowa State University Extension and Outreach, please visit http://www.extension.iastate.edu.
Harmon, Jay D.; Hoff, Steven J.; and Rieck-Hinz, Angela M., "Animal Housing—Biofilters Overview" (2014). Agriculture and Environment Extension Publications. 210.