Clarifier SandgateGravity sedimentation is one of the most frequently used processes in wastewater treatment. Many wastewaters contain settleable suspended solids that can be removed under quiescent conditions. Particles (solid, liquid, or gases) that have a different density from that of the suspension medium (water), will settle downward because of gravity or rise to the top because of buoyancy. In other cases where suspended materials do not settle readily, upstream unit processes are used to convert colloidal (nonsettleable suspended solids) and soluble pollutants into settleable suspended solids for gravity sedimentation removal. Suspended solids removal is important because of the pollutants associated with the removed solids, such as organics, nutrients (nitrogen, phosphorus), and heavy metals.

Gravity sedimentation occurs in basins frequently called clarifiers. Primary clarifiers are used to remove the settleable suspended solids in raw wastewaters.

Our AquaScraper Clarifier range includes the following:

AquaScraper Series C (Circular Clarifiers)

  • Peripheral Drive (AquaScraper C-PD)
  • Centre Drive  (AquaScraper C-CD)

AquaScraper Series R (Rectangular Clarifiers)

  • Travelling Bridge (AquaScraper R-TB)
  • Chain and Flight (AquaScraper R-CF)
  • Stainless Steel Rope and Flight (AquaScraper R-RF)

AquaScraper Series SL (Suction Lift Clarifier)

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