Malleable material, such as manure, and municipal sludge, food waste, and the like, is dried and the average particle size of the material is reduced in a simple and effective manner without the use of an external heat source. The material with a first moisture content and average particle size is fed...http://www.google.com.au/patents/US6491242?utm_source=gb-gplus-sharePatent US6491242 - Malleable material reduction
