Przemysl Chemiczny, Vol.93, No.4, 568-569, 2014
Physicochemical properties of ash from thermal utilization of feathers, meat and bone meal and poultry litter
Feathers, meat and bone meal and poultry litter were combusted at 600-900 degrees C in a rotary kiln. The resulting ash esp. from meat and bone meal showed a high content of P and Ca (up to 17.37% and 29.93%, resp.). It contained also micronutrients (Cu, Fe, Mn, and Zn) and can be used as an additive to enrich the compn. of fertilizers.