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CORRELATION EQUATIONS TO PREDICT THE SOLIDS AND PLANT NUTRIENT REMOVAL EFFICIENCIES FOR GRAVITY SETTLING OF SWINE MANURE
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Pp. 487-495 in the Ninth International Animal, Agricultural and Food Processing Wastes Proceedings of the 12-15 October 2003 Symposium (Research Triangle Park, North Carolina USA), Publication Date 12 October 2003. 701P1203.(doi:10.13031/2013.15286)
Authors: J.P. Chastain and M.B. Vanotti
Keywords: Manure treatment, Liquid-solid separation, Swine Manure, Manure Management
Experiments were performed to determine the amount of TS, TSS, VS, VSS, COD, TKN, organic- N, total-P, organic-P, and total- K that can be removed from liquid swine manure by settling for 60 minutes. The experiments were conducted using manure samples taken from buildings on three different swine farms. All experiments were replicated 3 times. The swine farms included two pitrecharge manure-handling systems and one flush facility. Significant regression equations were developed from the data that allow the prediction of solids and nutrient content of the influent and effluent manure and removal efficiencies over a TS range of 1730 to 23,850 mg/L. The effects of primary treatment on the ratio of available N to P2O5 in the effluent and the impact on the design of further treatment processes will be discussed. These data provide needed information to allow engineers to more precisely design gravity settling structures for primary treatment of swine manure.(Download PDF) (Export to EndNotes)