Corporate Headquarters
4105 Sartelon
St-Laurent, QC
H4S 2B3
Canada
T. (514) 334-7230
F. (514) 334-5070
Ontario Office
2000 Argentia Road
Plaza IV, Suite 430
Mississauga, ON
L5N 1W1
Canada
T. (905) 286-4846
F. (905) 286-0488
USA Office
2209 Menlo
Glenside, PA
19038
USA
T. (215) 885-4740
F. (215) 885-4741
Highly efficient degritter systems.
Their versatility allows them to be used successfully in waste, storm and potable water applications.
The Classic (270) type Induced Vortex Grit Chamber takes full advantage of the tangential inflow velocity along the periphery of the chamber to initiate the grit removal process. The circular design uses only a fraction of the footprint of conventional aerated degritters. The reliable system operates efficiently over a wide range of daily flow rates with low head loss. The sloped transition along with the rotating motion eliminates accumulation of grit in the separation chamber under all conditions and maintains grit removal performances even during a power failure.
Flow rating |
Up to 78 MGD / 295 MLD |
Degritter Diameter Size |
24 feet / 7.3 m |
Installation |
Suitable for concrete or metallic tank |
Extraction type |
Air lift pump or motorized pump |
Available Configuration : (Inlet vs Outlet) |
270 degrees |
| Extraction Mode | Batch mode recommended |
The Variangle type induced vortex grit removal unit is an innovative re-engineering of the Classic Mectan technology. The concept capitalizes on the classic tank shape to enhance the effective conical transition between chamber sections to obtain a dynamic and revolutionary configuration. The use of a separation disc ensures process stability and reliability at any flow rate with a 20% overall increase in grit removal efficiency, mainly in fine particles. With its multi-directional outlet channel positioning capability, the Variangle unit provides waste water treatment plant design flexibility.
Flow Rating |
Up to 78 MGD / 295 MLD |
Degritter Diameter Size |
24 feet / 7.3 m |
Installation |
Suitable for concrete or metallic tank |
Extraction Type |
Air lift pump or motorized pump |
Available Configuration : (Inlet vs Outlet) |
0 to 360 degrees |
| Extraction Mode | Batch mode recommended |
The concept is based on the use of an inclined spiral inserted into a specially shaped trough to separate the grit from a grit/water mixture. The mixture is fed to the inlet hopper where grit classification and settling is achieved. The excess water overflows back to the influent channel. The slow rotation of the screw causes the grit to dewater as it moves toward the discharge point. The unit is supplied with an air separator or cyclone separator according to the feed mean used. This pre-assembled unit can eliminate problems associated with foul odour and unsanitary handling
Operation Type |
Batch mode recommended |
Feed Accepted |
Pumped or by gravity |
Model Size |
10 or 14 inches / 230 or 350 mm |
Conveyance |
16 or 18 feet / 5 or 5.5 m |
Setting |
25 degrees |
| Support type (Screw) | Replaceable wear components |
The concept uses a conical hopper set on top of an inclined shaftless spiral inserted into a tube to separate, wash and dewater the grit from a grit/water mixture. The mixture is fed to the inlet hopper where a slow rotational movement is induced to achieve grit particles settling. The combination of wash water injection and the central stirring motion provides grit scouring. The excess water and organic matter overflow back to the influent channel. The rotation of the screw at determined intervals causes the grit to dewater as it moves toward the discharge point. It could supplied with an air separator or cyclone separator according to the feed mean used. This pre-assembled unit can eliminate problems associated with foul odour and unsanitary handling.
Operation Type |
Batch mode recommended |
Feed Accepted |
Pumped or by gravity |
Model Size |
10 or 12 inches / 250 or 300 mm |
Conveyance |
16 or 18 feet / 5 or 5.5 m |
Setting |
35 degrees |
| Support type (Screw) | Replaceable wear components |
