Location: Agroecosystem Management Research
Project Number: 5440-12000-060-00
Start Date: Feb 02, 2007
End Date: Nov 07, 2010
Experiments will be conducted in the field and in the laboratory to evaluate gas emissions, nutrient transport, and microbial transport and fate associated with specific types of confined animal feeding operations and wastewater treatment processes. Specific areas within beef cattle feedlot pens will be identified that disproportionately emit gases (odor compounds, ammonia, and greenhouse gases) or have a large potential for nutrient runoff through the use of flux chambers and gas chromatography and by the use of artificial rainfall simulators. Flux chambers, mass losses from soil, and bioaerosol sampling will be used to determine the loss of nutrients, odor compounds, and the potential to disseminate manure-borne microorganisms in multi-year studies at field sites where swine wastewater is center pivot applied to agricultural fields. Standard microbiological techniques will be used to determine the prevalence of manure-borne microorganisms after alternative treatments have been used to treat wastewater.