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Dewatering Characteristics of Precipitated Egg Solids

Authors :
D. M. Sievers
J. M. Vandepopuliere
C. E. Harris
Source :
Poultry Science. 62:985-989
Publication Year :
1983
Publisher :
Elsevier BV, 1983.

Abstract

Various procedures were compared for efficient removal of egg solids from processing plants waste water. Coagulant aids were not productive because they failed to produce a stable floc and resulted in less egg protein (TKN) being removed. The use of on-line centrifugation appears to be limited due to the fragility of the floe. High TKN removals would require prior settling and decanting of liquids. The high cost of equipment may not be justified based on the small amount of product gained from the relatively dilute wastewater. Vacuum filtration exhibited good TKN removal but produced low solids yield, which was discouraging as far as equipment efficiency. This process also appears to require prior settling of floc and decanting and, therefore, could not be used continuously on-line. The most promising process was foamation. High TKN removals were attained with simple equipment that could be used continuously on-line. The most critical problem was the rapid transfer of heat to the liquid which causes the foam to be produced. If the heat transfer problem could be overcome on a plant scale, this process would be the choice for the efficient removal of egg solids from the relatively dilute wastewater stream.

Details

ISSN :
00325791
Volume :
62
Database :
OpenAIRE
Journal :
Poultry Science
Accession number :
edsair.doi...........e023876c267b30a6e3a5e75fccdb124f