Abstract
Mixing fresh silage in water resulted in partial segregation of grain from stover. Grain concentration was 75% in the sunk material when silage was relatively dry (64% moisture content [MC]) and 41% when silage was relatively wet (74% MC). Partial drying to remove 20 percentage units of moisture prior to water separation increased grain concentration to 92%, and complete drying increased grain concentration to 99%. Sieving without drying followed by water separation resulted in a grain concentration of 79%. A byproduct of water separation is a large amount of soluble and deposited fine particles in the effluent: 18% of original dry matter after one separation, and between 21 and 26% after eight separations. In an industrial setting, hydrodynamic separation of silage with minimal pretreatment could provide a feedstock with a high concentration of grain (75–80%). In a laboratory setting, hydrodynamic separation with prior oven drying could provide a method to separate grain from stover in corn silage by reaching a grain concentration higher than 99%.
Contribution number 761, Soils and Crops Research and Development Centre, AAFC.
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Savoie, P., Shinners, K.J., Binversie, B.N. (2004). Hydrodynamic Separation of Grain and Stover Components in Corn Silage. In: Finkelstein, M., McMillan, J.D., Davison, B.H., Evans, B. (eds) Proceedings of the Twenty-Fifth Symposium on Biotechnology for Fuels and Chemicals Held May 4–7, 2003, in Breckenridge, CO. Biotechnology for Fuels and Chemicals. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-59259-837-3_5
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DOI: https://doi.org/10.1007/978-1-59259-837-3_5
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