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Ottawa (Canada): composting plant


Address

5123 Hawthorne Rd
Ottawa (Ontario)
Canada - K1G 3Y3


Site

Our composting facility in Ottawa was designed and built by Orgaworld Canada Ltd. Orgaworld Canada also runs it. We have been processing organic waste for the City of Ottawa since 2010. This waste is then converted into high quality compost for the agricultural sector and for the City itself, despite the fact that the seasonality of supply varies enormously. The facilitycan also operate during the harsh Canadian winters without issues. The plant has a processing capacity of 100,000 tons of organic waste per year with potential for expansion to 150,000 tons per year.

How it works

The waste arriving at our site in Ottawa is mixed with pre-composted material with little to no preparation. The resulting mix is easy to aerate. This mix is placed into air-tight composting tunnels using front end loaders. This marks the start of the aerobic composting process. The composting process takes 7 to 10 days. The mix is then removed from the tunnels using loaders, screened and stored for curing. The compost is inspected after 21 days in accordance with provincial regulations: a sample is taken and analyzed by an external laboratory that is an affiliate of the Compost Council of Canada and tested under Compost Quality Alliance guidelines. The compost is ready for sale after 28 days.

Extremely low odor and particle emissions

One of the things that makes this location unique is the fact that there are hardly any odors released. This has been achieved by making sure the building and the facility is constantly under negative pressure as this prevents the emission of odor and particles into the surrounding area. Part of the air is used as process air in the composting tunnels. The air is then passed through a multi-step odour abatement system to remove odors before they are emitted via a stack.

Set-up characteristics

Technology
Tunnel composting
Input
Organic waste
Waste gas treatment
Air purification + Ammonia Scrubber + Biofilter + Bioscrubber(+ stack)
Number of composting tunnels
6
Days stored in the composting tunnels
8 – 14 days
Capacity
100.000 tons per year
Permitted capacity
150.000 tons per year
Compost output
35.000 tons per year
Size of location
10 ha
Construction year
2010

More information

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