Transcript SITA UK - presentation

The role of waste management
and energy from waste in a
circular economySITA UK’s proposed 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
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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
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Industrial
Commercial
CLIENTS
COLLECTION
Mono
Large
/
small
C & D, Soil
WASTE
CUSTOMER
What is waste management ?
C&I
Creating
value
Mono
Large
/
small
C&D
RESOURCE
MANAGEMENT
SWITCHBOARD
Med
Local
Authorities
è TRADING IN
PRODUCTS
AND ENERGY
HW
C&I
Large
/
small
HW
Mono
MSW
è WASTE
STREAM
MANAGEMENT
Reducing
Costs
Secondary
Resources
Market
TRADING
SEPARATION
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SELECTIVITY
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QUALITY
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A plethora of potential solutions
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What is a circular economy
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Solution preferences
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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.
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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.
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Role of recycling
Recycling
one tonne
of …
Saves …….
And compared with
manufacture from raw
materials, avoids emissions of…
Newsprint
The felling of 12 trees 1.3 – 1.7 tonnes of CO2 equivalents
Office paper The felling of 24 trees 1.3 – 1.7 tonnes of CO2 equivalents
Aluminium
5 tonnes of bauxite
5 – 12 tonnes of CO2 equivalents
Steel
1.5 tonnes of iron ore
1.0 – 1.3 tonnes of CO2 equivalents
Copper
10 t of copper ore
13 – 20 tonnes of CO2 equivalents
Glass
1.2 t of raw materials
0.6 tonnes of CO2 equivalents
Plastics
2,000 kg of oil
1.7 – 4.7 tonnes of CO2 equivalents
Biowaste as 200 kilogrammes of
compost
peat
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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
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Recycling’s contribution to sustainability
Paper
Aluminium
Energy saved when products
are made from recycled materials
100%
80%
Plastics and Iron
60%
40%
Glass
20%
0%
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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.
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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/pretreatment.
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From Oakdene Hollins report 2005
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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 .
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What does an EfW
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(incinerator)
look like inside?
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Inside – Moving grate combustion zone
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Outside look
Small
Large
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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
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Site location
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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
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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
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Thank you
• Stuart Hayward-Higham
• Technical Director
• SITA UK Ltd
•
•
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[email protected]
+44 7970 233747
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