Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Iowa State University

Agriculture and Environment Extension Publications

Life Sciences

Manure and Air Quality

Articles 1 - 5 of 5

Full-Text Articles in Entire DC Network

Manure Storage & Handling—Aeration Overview, Daniel S. Andersen, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz Sep 2014

Manure Storage & Handling—Aeration Overview, Daniel S. Andersen, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz

Agriculture and Environment Extension Publications

Aeration is the process of mixing air into the manure to promote the growth of aerobic bacteria. Oxygen must be supplied either naturally, mechanically through mixing, or using oxygen diffusion systems. This technology can provide dramatic odor reduction from livestock waste management facilities, but has not found frequent application in agriculture due to intensive energy use and resulting added utility costs.

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 ...


Animal Housing—Barriers Overview, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz Apr 2014

Animal Housing—Barriers Overview, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz

Agriculture and Environment Extension Publications

Barriers can be used to address dust and odor coming from animal housing. Barriers, or “windbreak walls” are used downwind of fans to reduce forward momentum of airflow, settle out dust particles, and push the exiting plume higher into the atmosphere.


Animal Housing—Chimney Overview, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz Mar 2014

Animal Housing—Chimney Overview, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz

Agriculture and Environment Extension Publications

The use of chimneys in animal housing systems can elevate odors and increase dispersion with increased wind speed and air turbulence at higher elevations.

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


Animal Housing—Biofilters Overview, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz Mar 2014

Animal Housing—Biofilters Overview, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz

Agriculture and Environment Extension Publications

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


Animal Housing—Electrostatic Precipitation Overview, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz Mar 2014

Animal Housing—Electrostatic Precipitation Overview, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz

Agriculture and Environment Extension Publications

Electrostatic precipitation can be used to reduce emissions, odor and dust from animal housing. Electrostatic systems work by imparting a negative charge on dust particles, causing them to stick to grounded surfaces such as gates, floors and walls.

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