SUBCAT
Dominion Divers Ltd.'s SUBCAT is a submersible
self-propelled crawler operating on two 32-inch rubber tracks
resulting in only .5 PSI ground pressure. This eliminates the
danger of breaking the bottom seal of the containment area.
The unit is employed for fast, efficient and
cost-effective removal of sludge, sediments, silt and sand.
The current SUBCAT is the culmination of many
previous models. It has been designed and developed to work in
the environment of the Precambrian shield, both above water and
below.
- Sewage Lagoons
- Mine Tailings
- Paper Mills
- Lake Reclamation
- Settling Basins
- Fly Ash
- Channel Deepening
- Harbor Improvements
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Sediments are fed into a dredge pump by means
of adjustable 8-foot helical augers equipped with cutter blades
to break up solids. The slurry can then be pumped up to 2,500
feet away into a pre-designated spoil area. There is no need
to shut down or drain lagoons, ponds, or waterways during sediment
removal. Sediments and sludge can be removed at the rate of 20
to 75 cubic yards an hour. The rate depends on density of material
and the distance to be pumped.
Advantage over other methods:
- Does not require drainage or shutdown
of the system
- Hydraulically adjusted cutter head augers,
eliminates the danger of disturbing the original bottom seal
or contour
- Restores lagoon or pond to original
design capacity
We have worked in numerous lagoons that have
contained more than just municipal waste. Lime is used in many
potable water treatment plants as part of the treatment process.
The residue is pumped into the sewage lagoon where it precipitates.
This combines with mud and sand that can enter the force main
through ruptures and creates a solid mass that can be walked
on.
Large lagoon projects completed by Dominion
Divers Ltd. include a 10-acre lagoon at Humbolt, Sask. that involved
moving 120,000 cubic metres, a 6-acre cell containing 48,000
cubic metres of sludge in The Pas (details available) and the 12-acre primary cell containing more than 100,000 cubic metres at Portage
La Prairie.
The SUBCAT
unit is totally self-contained and transportable with our truck.
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