Effect of Co-Composting the Separated Solid Fraction of Pig Manure with Various Biomass Addendums on Fuel Characteristics

M. Kennealy, P.G. Lawlor, J. Carroll, J. Finnan & E. Owens
The aim of this study was to assess the effect of co-composting the separated solid fraction of pig manure (SPM) with various biomass addendums on fuel characteristics. Three trials with various treatments were conducted – SPM only (repeated in all trials), SPM/sawdust (4:1), SPM/greenwaste (4:1), SPM/straw (13.5:1), SPM/woodchip (4:1), SPM/sawdust/woodchip (8:1:1), and SPM/sawdust (3:2) (ratios based on fresh weight). Treatments were composted in tumblers for 56 days. Ash content, gross calorific value (GCV) and metal...