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 facility can 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 odour and particle emissions
One of the things that makes this location unique is the fact that there are hardly any odours released. This has been achieved by making sure the building and the facility is constantly under negative pressure as this prevents the emission of odour 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 odours before they are emitted via a stack.
Technology Tunnel composting
Input Organic waste, leaf and yard waste
Waste gas treatment Ammonia Scrubber + Bio-filters + Bio-scrubber (+ 40m stack)
Number of composting tunnels 6
Days stored in the composting tunnels 7– 10 days
Permitted capacity 150,000 tons per year
Compost output Up to 60,000 tons per year
Size of location 10 ha
Construction year 2010