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2016

Anaerobic digestion

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Full-Text Articles in Engineering

Biogas From Cattle Slaughterhouse Waste: Energy Recovery Towards An Energy Self-Sufficient Industry In Ireland, Niamh Power, Aidan Ware Jan 2016

Biogas From Cattle Slaughterhouse Waste: Energy Recovery Towards An Energy Self-Sufficient Industry In Ireland, Niamh Power, Aidan Ware

Publications

This study was carried out to assess the energy recovery potential from organic industrial by-products of a cattle slaughtering facility. There are several processes to convert organic material to energy; the technology of interest in this study was anaerobic digestion, the biological conversion of degradable organic material into methane. The scenario was initially confined to a full scale cattle slaughtering facility processing 3.28% of heads slaughtered in Ireland. The methane potential of dissolved air flotation sludge, paunch, soft offal as well as a mixed waste stream (combination of individual waste streams) was determined through a series of biochemical methane …


What Is The Effect Of Mandatory Pasteurisation On The Biogas Transformation Of Solid Slaughterhouse Wastes?, Niamh Power, Aidan Ware Jan 2016

What Is The Effect Of Mandatory Pasteurisation On The Biogas Transformation Of Solid Slaughterhouse Wastes?, Niamh Power, Aidan Ware

Publications

The effect of mandatory pasteurisation on Category 3 offals, according to the Animal By-Products Regulation (ABPR 1069/2009/EC), was determined using Biochemical Methane Potential (BMP) assays as well as kinetic and statistical analysis. Pasteurised and unpasteurised offals sampled from cattle, pig and chicken slaughterhouses were characterised and their specific methane yields (SMYs) and their bioavailability was assessed. The resultant SMYs were high (465–650 mLCH4 gVS−1) with no statistically significant increase in methane production identified due to pasteurisation. However, the kinetics of the biogas transformation processes highlighted increased bioavailability of the organics due to pasteurisation. This was brought to …