Turning waste into a resource

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Turning waste into a resource
Novel ways to dispose of waste and recycling

• Kirk Bridgewood
• NISP North East

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Overview

• Introduction to NISP
• What is Industrial symbiosis
• Applying IS to the construction Industry
• Recycled and secondary aggregates
• Case Studies

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Key Features of NISP

• Funded by UK Government (DEFRA)
• FREE resource efficiency support
• Reduce costs and create additional business
• Waste or spare resources becomes a saleable
  by-product or resource input for another company
• Opportunity ?
• 5 million tonnes went to landfill in North East
  last year

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NISP covers the whole of the UKNorth East
co-ordinated by CLEMANCE, University of
Teesside.
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Cradle to Grave

• Traditional Linear supply chain
• A large constant supply of raw materials is
  required, waste ends up in landfill
• This system is unsustainable

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Industrial Symbiosis
Co-operative use of waste energy, materials, and
other under-utilised resources
WASTE RESOURCE
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Indentify Synergy Opportunities

• What resources are being underused? Need to know
• location
• quantities
• specifications, EWC classification
• timing (project, batch, or continuous) and
• restrictions (commercial, regulatory, technical
  etc.).
• Information gathered to identify synergy
  opportunities
• from direct contact, visits or referrals
• from synergy workshops, and events.

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Resource flow in the construction Industry
Waste management SWMP
Recycled and Secondary aggregates
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Recycled, Secondary and reclaimed Aggregates

• Reclaimed materials and products - those which
  can be re-used in the form in which they are
  recovered.
• Recycled products waste materials transformed
  into useable materials and products after
  processing
• Secondary products waste materials or
  by-products often from outside of the
  construction industry which can be used as
  substitutes for primary materials

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Distribution of primary material resources in
construction
Potential for recycled and secondary aggregates
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Distribution of Quarry products used in the
construction Industry
Potential for recycled and secondary aggregates
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Perception of recycled and secondary aggregates

• Secondary or recycled aggregates at one time were
  looked down on and thought to be inferior
  material to natural aggregates, now aggregates
  are produced to comply with a range of European
  and British standards such as the specification
  for highway works 2004 and BSEN 13285 2003

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Meeting standards

• Waste Foundry Sand
• Blended for
• Topsoil additive (BS 3882)
• Asphalt (BS EN 13108)
• Concrete (BS EN 12620)

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Quantifying savings

• Worked with Halcrow to use secondary aggregates/
  alternative materials
• 22,000 tonnes of IBAA used
• 3382 tonnes CO2 savings
• Cost savings over virgin aggregate 20

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Cleaning up construction waste

• Hard material sent to a recycling centre for
  processing into aggregate 1200 tonnes
• Clean Wood for reprocessing 8 tonnes
• Dirty Wood for waste to energy incineration 12
  tonnes
• Plastic for reprocessing 4 tonnes
• Metal for reprocessing 6 tonnes
• Rubbish that could not be segregated incl. tree
  roots 20 tonnes
• The balance was subsoil that, once processed to a
  clean, inert condition was re-used on site to
  re-profile the ground 4750 tonnes
• CO2 savings 697 tonnes

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Future projects

• Low carbon concrete
• Secondary additives...
• Rubber crumb
• Glass
• Blast furnace slag
• Pulverised Fuel Ash

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Construction Applications

• Concrete road
• Bituminous road
• Hydraulically bound road
• Ground improvement
• Earthworks embankments
• Earthworks Cuttings
• Shallow foundations
• Deep foundations
• Utilities
• Utilities reinstatement in roads
• Concrete substructures
• Concrete structures
• Buildings Industrial
• Buildings Residential.

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Summary

• Industrial Symbiosis delivers
• Cost and Environmental Benefits
• A FREE resource
• Here to Help
• Thanks for listening
• www.nisp.org.uk
• northeast_at_nisp.org.uk
• 01642 384670