The role of waste management and energy from waste in a circular economy- SITA UK’sproposed Severnside development Sept 2009 Stuart Hayward-Higham
SITA UK • SITA UK is a recycling and resource management company • We serve over 12 million customers, and • Over 30,000 businesses. • Handle nearly 11 million tonnes of material • Of which in excess of 3 million tonnes are recycled • Over 1 million tonnes is used for energy production • We produce in excess of 1 million MWhrs of electricity • Produce around 3% of all the green electricity in the UK • Employ over 6000 employees across the country
SITA UK’s vision We want to live in a society where there is no more waste In the future there will be no more waste as materials will be viewed as products or raw materials
RECYCLING COLLECTION TREATMENT CLIENTS CUSTOMER WASTE Creatingvalue Industrial Commercial Mono C&I Mono C & D, Soil C&D RESOURCE MANAGEMENT SWITCHBOARD • WASTE STREAM MANAGEMENT • TRADING IN PRODUCTS AND ENERGY MATERIAL SPECIFIC Med HW Local Authorities C&I ReducingCosts Secondary Resources Market HW Mono MSW SELECTIVITY QUALITY What is waste management ? Large / small Large / small Large / small TRADING SEPARATION
Why change the existing solutions ? • Capacity • Existing landfill capacity is reducing and replacements are insufficient. • Cost • Landfill tax, transport costs ( as existing landfill solutions become more scarce ), carbon etc all raise the cost of existing solutions and drive waste into the minimisation, recycling and recovery solutions • Sustainability • There are better ways of treating most waste than by landfill, however the replacement capacity is needed in a time period and scale to ensure that those who need waste management services are viably service options.
Prevention, minimisation & re-use • Prevention • best of all and completely customer driven and controlled • Minimisation • Through education, buying patterns and efficient use. Very customer driven but advice available. • Re-Use • Encouraged through bring back or re sale – again customer driven but advice and end markets are available.
Recycling • Collection • Separate at source is best, separate later is possible. • Sorting • From simple magnets and consolidation though to complex sorting, separation and refinement • End market • Sent to reprocessors to be made into new cans, bottles etc
Recycling’s contribution to sustainability Paper 100% Aluminium 80% Plastics and Iron 60% Energy saved when products are made from recycled materials 40% Glass 20% 0%
But…… • Not all waste can be avoided or recycled which leaves us with extracting energy or landfill. • Our preference is to extract the energy. • To produce electricity, gas or heat and use it in the most efficient manner. • Location of plants is essential to marry with the markets or waste arising and potential energy and heat users. • We recover some of the energy from the organic landfill wastes but not as efficiently nor as completely than by energy from waste.
Energy from Waste ? • Why make energy ? • With the potential national supply issues over the next 20 years and instability in international markets, the recovery of energy from waste has the opportunity to make a significant contribution to national need. • Recovering energy from waste is a sustainable solution for the treatment of the residual fraction of the waste left over after recycling/composting/pre-treatment. From Oakdene Hollins report 2005
Energy from Waste methods • Combustion to create steam and then electricity. • Gasification/pyrolysis (Gasification is proposed by the Cyclamax development) which converts the waste to a gas and then combusts the gas to make electricity. • Anaerobic digestion – biological conversion of the organic fraction of waste to a methane gas and then combustion to make electricity or the gas (after clean up) for vehicle fuel .
Outside look Small Large
Severnside Proposal • 400ktpa facility • From a market in excess of 1.1M tonnes per annum (tpa) • Energy • Sufficient for around 50,000 homes • 32 MW of electrical output • Location • Good location for treating local waste • Delivery possible through road and rail • Near potential users of the heat from the plant • Community • 200 jobs through the construction phase • 50 jobs in the plant
Location efficiency & Local embedment • Transport – good road and rail access • Local waste – helping divert some local waste from landfill to more productive use • Local energy – using local fuel ( i.e. local waste) to make energy locally • Local benefit – managing local waste with local facilities and employment
What role does EFW have in a circular economy ? • An essential one because • not all waste can be re-used or recycled • It’s an essential way of recovering the remaining embedded benefits of residual waste
Thank you • Stuart Hayward-Higham • Technical Director • SITA UK Ltd • Stuart.firstname.lastname@example.org • +44 7970 233747