Modeling of carbon and nitrogen gaseous emissions from cattle manure compost windrows

Henry F. Bonifacio, C. Alan Rotz, Thomas Lehman Richard

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Windrow composting of cattle manure is a significant source of gaseous emissions that include ammonia and the greenhouse gases of carbon dioxide, methane, and nitrous oxide. A process-based model was developed to simulate different carbon (C) and nitrogen (N) processes, such as mineralization, immobilization, volatilization, etc., occurring during composting, and their effects on and interactions with environmental conditions within the windrow. Comprehensive measurement data from a published independent cattle manure composting study were used in refining and assessing the model. Out of 15 measured parameters available for model evaluation, six were also used in refining model constants. Simulation results indicate that the model performed reasonably in predicting environmental conditions (e.g., moisture), C and N balance within, and gaseous emissions from static (i.e., no turning) and turned windrows. At the end of 99 days of composting, predicted C (50%) and N (31%) losses, mainly as gaseous emissions, for the static windrow compared well with measured losses (45% and 19%, respectively) - the discrepancy observed for N loss was likely due to non-simulation of the finished compost cover that was included on the experimental windrow. The model performed better in simulating the turned windrow, with predicted C (78%) and N (55%) losses very close to those measured (77% and 57%, respectively). The performance of the model was further assessed using another published independent study on a turned windrow, with predicted C (43%) and N (40%) losses comparable to measured losses (53% and 42%, respectively). The process-based compost model is incorporated in a version of the Integrated Farm System Model (IFSM), a whole-farm simulation model used to evaluate the performance, environmental impact, and economics of crop, dairy, and beef production systems. The new component will enable whole-farm evaluation of the impacts of implementing manure composting strategies.

Original languageEnglish (US)
Title of host publication2016 American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE 2016
PublisherAmerican Society of Agricultural and Biological Engineers
ISBN (Electronic)9781510828759
DOIs
StatePublished - Jan 1 2016
Event2016 ASABE Annual International Meeting - Orlando, United States
Duration: Jul 17 2016Jul 20 2016

Other

Other2016 ASABE Annual International Meeting
CountryUnited States
CityOrlando
Period7/17/167/20/16

Fingerprint

composted manure
Manures
cattle manure
Gas emissions
Nitrogen
Carbon
Composting
carbon
nitrogen
composting
Farms
refining
farms
composts
Refining
windrow composting
environmental factors
environmental economics
Beef
volatilization

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Agronomy and Crop Science

Cite this

Bonifacio, H. F., Rotz, C. A., & Richard, T. L. (2016). Modeling of carbon and nitrogen gaseous emissions from cattle manure compost windrows. In 2016 American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE 2016 American Society of Agricultural and Biological Engineers. https://doi.org/10.13031/aim.20162459669
Bonifacio, Henry F. ; Rotz, C. Alan ; Richard, Thomas Lehman. / Modeling of carbon and nitrogen gaseous emissions from cattle manure compost windrows. 2016 American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE 2016. American Society of Agricultural and Biological Engineers, 2016.
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abstract = "Windrow composting of cattle manure is a significant source of gaseous emissions that include ammonia and the greenhouse gases of carbon dioxide, methane, and nitrous oxide. A process-based model was developed to simulate different carbon (C) and nitrogen (N) processes, such as mineralization, immobilization, volatilization, etc., occurring during composting, and their effects on and interactions with environmental conditions within the windrow. Comprehensive measurement data from a published independent cattle manure composting study were used in refining and assessing the model. Out of 15 measured parameters available for model evaluation, six were also used in refining model constants. Simulation results indicate that the model performed reasonably in predicting environmental conditions (e.g., moisture), C and N balance within, and gaseous emissions from static (i.e., no turning) and turned windrows. At the end of 99 days of composting, predicted C (50{\%}) and N (31{\%}) losses, mainly as gaseous emissions, for the static windrow compared well with measured losses (45{\%} and 19{\%}, respectively) - the discrepancy observed for N loss was likely due to non-simulation of the finished compost cover that was included on the experimental windrow. The model performed better in simulating the turned windrow, with predicted C (78{\%}) and N (55{\%}) losses very close to those measured (77{\%} and 57{\%}, respectively). The performance of the model was further assessed using another published independent study on a turned windrow, with predicted C (43{\%}) and N (40{\%}) losses comparable to measured losses (53{\%} and 42{\%}, respectively). The process-based compost model is incorporated in a version of the Integrated Farm System Model (IFSM), a whole-farm simulation model used to evaluate the performance, environmental impact, and economics of crop, dairy, and beef production systems. The new component will enable whole-farm evaluation of the impacts of implementing manure composting strategies.",
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Bonifacio, HF, Rotz, CA & Richard, TL 2016, Modeling of carbon and nitrogen gaseous emissions from cattle manure compost windrows. in 2016 American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE 2016. American Society of Agricultural and Biological Engineers, 2016 ASABE Annual International Meeting, Orlando, United States, 7/17/16. https://doi.org/10.13031/aim.20162459669

Modeling of carbon and nitrogen gaseous emissions from cattle manure compost windrows. / Bonifacio, Henry F.; Rotz, C. Alan; Richard, Thomas Lehman.

2016 American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE 2016. American Society of Agricultural and Biological Engineers, 2016.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Bonifacio HF, Rotz CA, Richard TL. Modeling of carbon and nitrogen gaseous emissions from cattle manure compost windrows. In 2016 American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE 2016. American Society of Agricultural and Biological Engineers. 2016 https://doi.org/10.13031/aim.20162459669