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Sustainable Development and Industrial Ecology
Waste asphalt 111

Refinery Ballasts

Residual oil

Gypsum Seafood Textile
Asphalt
wallboard processing company
Scrap
plastic

Tank Chemical Plastic
farm plant recycler Scrap Auto parts
plastic
Limestone Plastic pellets Plastic flakes

Shaded boxes are
Discrete remote (non-part)
Stone
parts facilities
FIGURE 3.5 Scenario 3 – industrial symbiosis (Martin et al., 1996)

Scenario 4
In this stage, the environmental and economic benefits of creating new busi-
nesses within the EIP will be demonstrated as shown in Figure 3.6.

™
• A power plant burning Orimulsion , a heavy bitumen emulsified with
water equipped with a steam pipeline to distribute process steam to
other EIP members.
• A remotely located gypsum wallboard company.

These projects will require investment but will result in the following set of
symbiotic relationships:

• The power plant delivers waste steam, through the pipeline, to the
refinery and the tank farm. Once the energy in the steam is spent,
the condensate is returned to the power plant and recycled to make
more steam.
• The stone company delivers stone to the power plant for use in the
scrubbers in the power plant’s air pollution control system.
• The wallboard company receives waste gypsum from the power
plant.