title: The influence of the pig manure separation system on the energy production potentials.
abstract: Energy recovery from pig manure offers an opportunity for waste utilisation and financial benefit. Samples of the solid fraction of separated pig manure and samples which had undergone chemical or biological pretreatment prior to separation were pyrolysed. A beech wood sample was pyrolysed for comparison. The chemically pre-treated and anaerobically digested materials had similar properties and showed similar behaviour during thermogravimetric analysis. However, the energy content of the gas arising from pyrolysis in a batch reactor at 600 °C comprises about 30% of the original energy of the feedstock in the case of the anaerobically digested materials and double that of the chemically pre-treated material. Therefore, the overall energy balance showed a loss of 595.9 MJ/t for the pyrolysis of the chemically pre-treated manure, while very small positive values of 351.7 MJ/t, 817.3 MJ/t and a significant value of 8935 MJ/t were found for anaerobically digested sample, un-pretreated solid and for wood, respectively.
authors.affiliation: Carbolea Research Group, Department of Chemical and Environmental Science, University of Limerick, Limerick, Ireland.
authors.forename: R
authors.initials: R
authors.lastname: Wnetrzak
authors.forename: W
authors.initials: W
authors.lastname: Kwapinski
authors.forename: K
authors.initials: K
authors.lastname: Peters
authors.forename: S G
authors.initials: SG
authors.lastname: Sommer
authors.forename: L S
authors.initials: LS
authors.lastname: Jensen
authors.forename: J J
authors.initials: JJ
authors.lastname: Leahy
mesh_terms: D000818:Animals; D018533:Biomass; D002152:Calorimetry, Differential Scanning; D002244:Carbon / Q000378:metabolism; D002606:Charcoal / Q000737:chemistry; D005591:Chemical Fractionation; D003246:Conservation of Energy Resources / Q000379:methods*; D005740:Gases / Q000032:analysis; D008372:Manure / Q000032:analysis*; D034421:Sus scrofa; D013696:Temperature; D013816:Thermodynamics; D013818:Thermogravimetry; D014934:Wood / Q000737:chemistry
chemical_list: D005740:Gases; D008372:Manure; C540010:biochar; D002606:Charcoal; D002244:Carbon