American Society of Agricultural and Biological Engineers



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Analyzing the Benefits of Manure Separation using Mathematical Optimization

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  131599107,  2013 Kansas City, Missouri, July 21 - July 24, 2013. (doi: http://dx.doi.org/10.13031/aim.20131599107) @2013
Authors:   Hongbo Dong, Michael C Ferris, Tom L Cox, John Norman, Jim Leverich
Keywords:   Animal Manure Separation Mathematical Modeling Nonlinear Optimization Mixed Integer Linear Programming

Abstract. Optimization techniques are used extensively for strategic and operations planning in a large number of system engineering applications. In the dairy farm industry, though development is of great interest and importance, analyzing and quantifying the benefits of manure separation can be a challenging task, usually because of the complex interacting system that involves both environmental and monetary concerns. We build here a sequence of strategic level optimization models for dairy farms. Connected with any chemical engineering model that describes a specific manure separation configuration, our models determine the optimal ways to use separated manure products over the dairy farmland or to export them for monetary income, over the short-term as well as long-term time horizon. Our models can be used to optimize operational decisions in current dairy farms, or to provide aid while designing new dairy farms with manure processing considerations.

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