Data for the Carbon Footprinting of Rendering Operations
Article first published online: 19 MAR 2012
© 2012 by Yale University
Journal of Industrial Ecology
Volume 16, Issue 2, pages 223–230, April 2012
How to Cite
Gooding, C. H. (2012), Data for the Carbon Footprinting of Rendering Operations. Journal of Industrial Ecology, 16: 223–230. doi: 10.1111/j.1530-9290.2011.00430.x
- Issue published online: 5 APR 2012
- Article first published online: 19 MAR 2012
- animal by products;
- greenhouse gas (GHG);
- industrial ecology;
This article presents a tool and data for calculation of the carbon footprint of rendering operations in North America, quantifying Scope 1 (direct) and Scope 2 (indirect) greenhouse gas emissions. Scope 3 (life cycle) emissions are not included.
According to the sample data, in one year an average-size rendering plant in North America processes 100,000 tonnes (t) of meat by-products, fallen animals, and restaurant grease and produces 40,000 t of marketable fats and proteins. A plant of this size emits directly about 20,000 t of carbon dioxide (CO2), mostly by burning fuels to operate cookers that destroy pathogens, drive off moisture, and separate the fat and protein. Another 4,000 t of CO2 is emitted by utility companies to provide electricity for the rendering process. These direct and indirect emissions are equivalent to about 30% of the CO2 that would be released if all of the carbon in the rendered raw material were decomposed into CO2.