Waste to Energy

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Waste to Energy
Environmentally Safe Waste Disposal that
generates renewable and valuable energy sources
Steam ? Electricity
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• Parent Company to Montenay Inc.
• Worlds second largest Waste Services Company
• 71,000 employees in 34 countries
• Burnaby incinerator is one of three Waste to
  Energy Plants in North America, the others are in
  Pennsylvania and Miami

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Waste-to-Energy Facility (WTEF)

• Built in 1988
• Serves the Greater Vancouver Regional Districts
  (GVRD)
• WTEF burns about 20 of GVRD Garbage
• ISO 14001 certified

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EverydayIns Outs

• 720 tonnes of garbage
• 6 tonnes of lime (to control acid gas emission)
• 50 megawatt-hours of electricity
• 270 KG of ammonia (to control NOx emissions)
• 120 KG of activated carbon (to control mercury
  emissions)
• 1500 KG of phosphoric acid (added to stabilize
  leachable metals in the fly ash)

• 960 tonnes of steam sold to nearby paper plant
• 360 megawatt-hours of electricity
• 120 tonnes of bottom ash (used in road building
  and landfill cover)
• 25 tonnes of fly ash (disposed at landfill)
• 20 tonnes of scrap metal (recycled into
  reinforcing steel)

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THE PROCESS
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Looking UP ? Looking DOWN ?
Mountains of Garbage About 80 trucks a day haul
garbage collected in the GVRD to the 4,000 tonnes
refuse bunker. Completely contained within the
plant, no odours can escape.
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• Controlled by one or two men the Garbage is mixed
  an lifted into the feed chutes.
• Each of the 3 lines burn 10 tonnes of garbage an
  hour.
• Garbage moves down the grate where it burns at
  temps of more than 1000 Celsius

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• Bottom ash amounts to about 17 per cent of the
  waste that comes into the plant.
• Metal is removed and recycled
• The remaining ash is used as an aggregate for
  building roads

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• Heat and gases pass into the boiler area where
  they heat tubes filled with water.
• Water become steam in a process that cools the
  gases.
• These gases are then sent to the air pollution
  control system
• Gases are treated to remove acids, metals and
  particulate matter.
• Every process is carefully monitored by the
  control room

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Cleaned gases are discharged through the 60 meter
high stack A portion of the steam produced is
sold to a paper mill that recycles paper products
to produce cardboard The steam produced is sent
to a turbo generator to create electricity for
sale to the BC Hydro electrical grid