Poultry Litter Valorization To Energy
Author(s)
P. De Filippis, M. Scarsella, N. Verdone & M. Zeppieri
Abstract
Historically manure has found utilization as fertilizer in agriculture because it
contributes to the fertility of the soil by adding organic matter and nutrients, such
as nitrogen, phosphorus and potassium. However, the current European Directive
91/676 drastically reduces the application of this material as fertilizer due to its
high nitrate content. Therefore, identification of alternative eco-friendly disposal
routes with potential financial benefits has become necessary, and the energetic
valorization of these biomasses is particularly promising.
Poultry litter represents one of the more challenging bio-fuel feedstocks for
energy generation, being easy to handle and showing a composition that
potentially assures a high energy content and the production of a byproduct (ash)
with good fertilizing properties. In this paper an evaluation of the technical and
economic feasibility of the energy conversion technologies usable to recover
both the potential energy and fertilizer properties of poultry litter was provided.
The focus was posed on the poultry farms of North-East Italy, where more than
half of the national poultry production is concentrated.
The preliminary cost analysis suggests that energy production from poultry
litter is actually economically viable in the case of large off-site plants only by
means of anaerobic digestion, while in the case of small plants operating in situ
the gasification process appears the most convenient option.
Keywords: manure, poultry litter, energy recovery.
1 Introduction
Owing to population and income growth, along with changing food preferences,
the demand for livestock products is continuously increasing, while globalization
is boosting trade in livestock inputs and products. Global production of meat and
milk is forecasted to double in 50 years from the beginning of this century,
Keywords
manure, poultry litter, energy recovery.
Related Book
Other papers in this volume
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