J. Anim Sci.
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J. Anim Sci. 1973. 36:788-791.
© 1973 American Society of Animal Science
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Dairy Cattle Manure Liquid: Solid Separation with a Screw Press

J. R. Menear and L. W. Smith

U.S. Department of Agriculture, Beltsville, Maryland1, 2, 20705

Abstract

Preliminary Tests with A Continuous-Fed Screw Press Suggest That Dairy Cattle Manure can be Fractioned Into Two Fractions with Greatly Different Physical And Chemical Properties. The Manure Press Cake Was High In Cell Wall Content (70.0%) And The Liquid Was High In Crude Protein Content (49.6%) On A Dry Basis. Mechanical Processing May Provide more Alternative ways to Transport, Utilize, or Dispose of Manure without Detriment to the Environment.

Footnotes

1 Agricultural Engineering Research Division and Animal Science Research Division, A.R.S.

2 Acknowledgements: The authors acknowledge the cooperation of the Rietz Manufacturing Co. and in particular Mr. R. B. Dunwody for his assistance in performing these tests.






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Copyright © 1973 by the American Society of Animal Science.