Grit Separator

Sand and Grit forms a major part of waste water effluent entraining a head of works. The waste water effluent will pass through the screening plant and there after a grit removal system. SAME Water supplies several methods of grit removal i.e.

Pista grit trap which is operated by airlift, submersible grit pump or centrifugal grit pumps. All three methods have a suction at the base of the pista, sucking the grit slurry up into a grit screw classifier for water and grit separation.
Another method of grit removal is an enlarged channel in which the cross-section is increased to reduce the velocity of the flowing sewage sufficiently to cause heavy inorganic matter such as grit, sand and gravel to settle, while the lighter organic matter remains in suspension. This design then has a travelling bridge which travel up and down the channel sucking up the settled grit through submersible grit pumps, discharging this grit slurry into a grit screw classifier which is mounted onto the travelling bridge, where the classifier separates the water and grit.

Once the effluent has passed through the grit plant the waste water moves onto the next primary waste water process.

The S.A.M.E. WATER Grit Separator / classifier is ideal for separating small, fast settling materials from liquids. It is constructed with a settling reservoir sited over an angled Screw.

The waste water influent with a high grit content is pumped or lifted to the grit separator. The heavier solids/grit settles out in the settling zone and after a preset time interval the screw begins to rotate for a specified time period and removes the settled grit discharging it via the chute into the waste bin. S.A.M.E. WATER classifier consists of a rotating screw fitted inside a half round trough and angled at 25 degrees into a settling chamber.

The screw is driven by a motor-gearbox set located at the top of the trough. The grit slurry inlet pipe is positioned above the TWL in the classifier, with the cleaned waste water flowing into a baffled overflow box where the waste water return pipe guides the waste water for further processing.

Grit Separator

The S.A.M.E. WATER Grit Separator / classifier is ideal for separating small, fast settling materials from liquids. It is constructed with a settling reservoir sited over an angled Screw.

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