The data are intended to reflect current equipment and processes on a Global level.
technologyComment of treatment of slaughterhouse waste, rendering (RoW):
Refers to a typical technology for tallow processing in Switzerland. The tallow-production process is described as follows: The animal carcasses and abattoir wastes are crushed in a grinder, then sterilised by steam. They are then dried using steam as a heat source, and finally defatted, a process in which the fat is separated from the greaves. The fat is clarified, while the greaves are milled into meat- and bone meal. The processing paths of tallow and of meat- and bone meal are very similar, diverging only in the final step (milling). The minimum requirements for sterilisation are a temperature of 133 °C and a pressure of 3 bar for 20 minutes (Nottrodt 2001).
References
Kleinhanss W., Uhlmann F. & Haxsen G. (2000) Folgenabschätzung alternativer Entsorgungsverfahren für Tierkörper und Schlachtabfälle bei einem Verwendungsverbot zur Futtermittelherstellung, 13p. Retrieved on July 11, 2002 from http://www.bal.fal.de/download/Fe_tmverbot.pdf.
Nottrodt A. (2001) Technische Anforderungen und allgemeine Empfehlungen für die Entsorgung von Tiermehl und Tierfett in Verbrennungsanlagen - Bericht erstellt im Auftrag des Bundesministeriums für Umwelt, Naturschutz und Reaktorsicherheit, 63p. Retrieved on July 11, 2002 from http://www.bmu.de/download/dateien/leitf.pdf.