Case Study: On-Farm Evaluation of Liquid Dairy Manure Application Methods to Reduce Ammonia Losses

Leytem, April B.; Bjorneberg, David L.; Sheffield, Ronald E.; Marti, Mario E. de Haro

doi:10.15232/s1080-7446(15)30678-1

Cited by 8 publications

(6 citation statements)

References 13 publications

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“…Therefore, frequent manure removal from lots would be a good management practice for reducing NH 3 losses. However, concentrations could be greater where manure is stored or applied if it is not incorporated into the soil (Leytem et al, 2009). Good drainage of the lots is also an important management practice because concentrations of NH 3 were elevated when lots were wet and had standing water.…”

Section: Spatial Variability Of Ammonia In the Open Lotsmentioning

confidence: 99%

Seasonal and Spatial Distribution of Ambient Ammonia Concentrations Measured at a Large Open-Lot Dairy

Leytem¹,

Dungan²,

Bjorneberg³

2009

The Professional Animal Scientist

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The volatilization of NH 3 from dairy production facilities is not only a loss of valuable N, but also an air quality concern because NH 3 plays a role in the formation of airborne particulate matter, which can be a health hazard. The ambient NH 3 concentrations over several seasons at 3 locations (open lots, compost yard, lagoon) throughout a large openlot dairy were determined, as well as the spatial distribution of NH 3 over the open-lot area. There was a significant main effect of location (P < 0.0001), which followed the trend of lot > lagoon = compost > background, with averages of 0.58, 0.33, 0.30, and 0.04 mg NH 3 / m 3 , respectively. The effect of weather and lot conditions on the spatial distribution of NH 3 across the lots was evident, with lower concentrations and less spatial variability in winter months when the lots were frozen compared with wetter warmer months. Lower NH 3 concentrations and less spatial variability were also measured when manure stockpiles were removed from the open lots and the lots were dry. Significantly greater NH 3 concentrations were generated in the lot area versus the compost and lagoon areas, which were not significantly different. Because the lots are greater in size by a factor of approximately 6, it is evident that NH 3 emissions from this sector of the dairy contribute the greatest amount of NH 3 to the atmosphere.

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Section: Spatial Variability Of Ammonia In the Open Lotsmentioning

confidence: 99%

Seasonal and Spatial Distribution of Ambient Ammonia Concentrations Measured at a Large Open-Lot Dairy

Leytem¹,

Dungan²,

Bjorneberg³

2009

The Professional Animal Scientist

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“…A portion of generated manure in Idaho and Utah are usually spread over lands as fertilizer supplement, especially for beef cow manure. However, some consequences caused by land application of manure include the loss of NH 3 which plays a big role in the formation of fine secondary aerosol particulates (PM2.5) and runoff of nutrients such as nitrate/nitrogen and phosphorous that cause eutrophication of surface waters and contamination of ground water (Leytem et al, 2009). The dairy farm industry is recognized as the sector with the highest ammonia emissions in Idaho (Sheffield and Louks, 2007).…”

Section: Animal Manurementioning

confidence: 99%

Proctor and gamble technology process assessment for bioenergy production

Boardman

Wright

2016

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“…A portion of the generated manure in Idaho and Utah are usually spread over lands as fertilizer supplement, especially for beef cow manure. However, some consequences from land application of manure include the loss of NH3, which plays a big role in the formation of fine secondary aerosol particulates (PM2.5), and runoff of nutrients such as nitrate/nitrogen and phosphorous that cause eutrophication of surface waters and contamination of groundwater (Leytem et al 2009). The dairy farm industry is recognized as the sector with the highest ammonia emissions in Idaho (Sheffield and Louks 2007).…”

Section: Animal Manurementioning

confidence: 99%

Procter and Gamble Technology Process Assessment for Bioenergy Production

Boardman

Wright

2016

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Procter & Gamble intend to replace much of their current heat and power with renewable energy sources. For 2014, Procter & Gamble's total energy, including electricity, natural gas, and steam, is approximately 1,540,000 MMBTU annually. The biomass and waste around a Procter & Gamble facility can be grouped into six categories: (1) agriculture residue and grass, (2) refuse solid material, (3) food waste, (4) organic waste stream, (5) livestock manure, and (6) wastewater and sludge. The six feedstock sources theoretically can provide a total energy of 3,520,000 MMBTU per year, among which agriculture residue is the biggest fraction with about 67%, followed by livestock manures at 27%. The practical estimation of bioenergy would be about 2,840,000 MMBTU annually. Therefore, the available energy sources around a Procter & Gamble facility are enough to meet their energy needs.These energy feedstocks would be treated by two processes: (1) anaerobic digestion for biogas and, subsequently, for heat and power and (2) thermochemical processes (e.g., combustion, pyrolysis, and gasification) for heat and power. For anaerobic digestion, a one-stage complete mixing digester is preferable; fluidized bed reactors are favorable for the thermochemical process.

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Case Study: On-Farm Evaluation of Liquid Dairy Manure Application Methods to Reduce Ammonia Losses

Abstract: ABSTRACT

Cited by 8 publications

References 13 publications

Seasonal and Spatial Distribution of Ambient Ammonia Concentrations Measured at a Large Open-Lot Dairy

Seasonal and Spatial Distribution of Ambient Ammonia Concentrations Measured at a Large Open-Lot Dairy

Proctor and gamble technology process assessment for bioenergy production

Procter and Gamble Technology Process Assessment for Bioenergy Production

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