Case Studies & Stories

Demonstrating sustainability and profitability go hand-in-hand

Walker Emulsions


Walker Emulsions provides both wax and asphalt emulsions to a variety of industries and municipalities across Canada, the United States and Mexico.


Rented and temporarily installed a water softener from a local company to test the viability of producing emulsion using soft water, with the final goal of preventing build-up in process heat exchangers. Fouling in our heat exchangers is an operational reality when using untreated city water, but it can be greatly reduced with some simple process modifications. Fouling reduces heat exchanger efficiency, leads to higher-than-required utility use and decreases lifespan of the equipment.


Sustainable Business Initiative


Burlington, ON




Small – 23 Employees

~$70,000 capital investment; <$10,000/year operating and maintenance costs

Payback period
~2 years

Natural gas reductions
18,250 m3/year


Water savings
7,000 m3/year

Cost savings

Additional savings 
Additional savings will be achieved through reduction of overtime hours worked, waste generated and energy required for routine heat exchanger cleanings. Fewer required cleanings will also greatly extend the lifespan of the heat exchangers, so maintenance and replacement costs will drop accordingly.

Explore More

  • York Region
    Treefrog is a web design and development company offering internet marketing services.
  • Hamilton and Burlington
    REfficient sells refurbished and reclaimed telecom, AV, and building products.
  • Hamilton and Burlington
    Royal Botanical Gardens
    Royal Botanical Gardens (RBG) is the largest botanical garden in Canada.
  • Greater Sudbury
    Project Site 176 Larch Street
    176 Larch Street is a multi-tenant building with businesses working together to reduce their environmental impact, including reThink Green, home of Green Economy North.