Anaerobic Digestion (AD) A sustainable energy production

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Anaerobic Digestion (AD) A sustainable energy production and waste management solution for your business Robert Crow 30 September 2014. Summary. Services offered to SMEs by Abertay University Legislative drivers Economic drivers The science of AD Feedstocks & pre- treatment - PowerPoint PPT Presentation


<p>PowerPoint Presentation</p> <p>Anaerobic Digestion (AD) A sustainable energy production and waste management solution for your business</p> <p>Robert Crow30 September 2014</p> <p>1SummaryServices offered to SMEs by Abertay UniversityLegislative driversEconomic driversThe science of ADFeedstocks &amp; pre- treatmentAD process outputs Energy &amp; DigestateFactors to consider when installing AD systems</p> <p>SBP Abertay AD Expertise</p> <p>Biochemical Methane Potential (BMP) assaysFeedstock analysis and pre-treatmentReactor and pilot scale trialsProcess development, design and optimisationBespoke training packages offered developed for operators and businesses new to the sector</p> <p>3Legislative drivers: Organic wasteEU legislation Scottish legislationThe Waste (Scotland) Regulations 2012 </p> <p>All businesses in Scotland that produce over 50kg of food waste per week require this to be separated and uplifted to a permitted treatment facility</p> <p>A ban on using on using macerators to discharge food waste into the public sewer is coming into force on the 1st of January 2016.</p> <p>An energy opportunity exists since the biogas created from AD can be combusted within a CHP to generate a source of power and heat.</p> <p>4Economic DriversLandfill tax currently 80 per tonne of active wasteAdd on the gate fee!!Price of raw materials increasing waste recovery and adding value is becoming necessary</p> <p>5</p> <p>6</p> <p>Anaerobic Digestion The science</p> <p>Source Renewable Energy Concepts 20138Feedstocks</p> <p>9Food production wasteVegetable WasteMeat products</p> <p>Pre-Treatment of FeedstocksReduction of feedstock particle sizeFeedstock blending Feedstock containing grit or sandRemoval of packaging /pasteurisation</p> <p>Source SLR consulting 200910.Feedstock assessment &amp; process monitoringMoisture Content (%)Total Solids (%) / Volatile Solids (%)pHVolatile Fatty Acids (VFA) (mg/L HOAc)Methane Yield (ml CH4 /g VS added)C:N Ratio</p> <p>11Animal By-Products Enforcement (Scotland) Regulations 2011: Anaerobic DigestionImplemented as a result of the 2001 Foot &amp; Mouth disease outbreak and BSE crisisCategory 1 (cannot be treated by AD)Category 2 (steam pre-treated unless manure or milk)Category 3 (pasteurised before digestion)</p> <p>12</p> <p>Energy Utilisation</p> <p>Source SLR Consulting (2008)</p> <p>End markets for AD digestate?Horticulture Agriculture Brown field site restorationLandfill daily cover</p> <p> INCREASING VALUEPROCESSING REQUIREMENT </p> <p>15PAS 110 StandardSpecification that allows digestate to be declassified as a wastePhysical testsChemical testsMicrobiological testsGrowth trialsStability Tests</p> <p>Key Issues developing AD systemsInitial feedstock assessment &amp; feedstock supplyProcess monitoring &amp; measurement essentialKnowledge exchange between AD technology providers and operations staffEngage SEPA at a early stageConsult your local planning officerEnd use of the biogas, heat and digestate should be considered</p> <p>Any questions?</p>