1. Reduction of Fossil fuel Dependency through the utilization
of Anaerobic Digestion (Waste to Energy) Dr Gabriel Kelly Group EHS
Manager 21/05/2015
2. 2 Need Anaerobic Digestion Project Need and Pathway Long
term strategic development Quotas would be abolished in 2015 meant
there was a pressing business need: Increased milk processing
Increase energy demands Increased treatment requirements for waste
Technology solution was and integrated Anaerobic Digestion system
Alternatives Do Nothing Use existing treatment model aerobic large
tanks highly energy intensive, larger footprint more manpower more
waste increased carbon footprint of the facility Other alternatives
AFC unproven (thermophilic) ATAD not particularly successful and
possibly not a suitable application Process Steps Planning
permission in 2006 involving EIS EPA licence boundary change 2010
and license change approval Vendor choice Construction and
commissioning 2011 /12
3. 3 What is AD? Anaerobic Digestion Project Anaerobic
Digestion: Anaerobic digestion of organic materials by
microorganisms under controlled conditions with the production of
biogas Natural Waste to Energy Process Scale 45,000 m3 probably the
largest industrial Digester in Dairy industry Treatment of 27,000
kg/d COD current 50 to 60 % utilisation in peak 8 Million
Investment in Waste to Energy provides for future expansion BAT
compliant
4. 4 Low energy electrical energy requirements Un manned
automated system Mesophilic operation