Dewatering Pump Manufacturer and Supplier

Wastewater contains sludge, and water is separated from it using various methods. The water so obtained from various processes such as sludge thickening, primary and secondary treatment, dewatering, etc., is sent for treatment, after which it is fit for reuse.

Dewatering is the last process used to treat wastewater. The sludge obtained after dewatering is sent for the production of renewable energy such as biogas, methane, etc.

In the initial stage of the wastewater treatment process, coarse objects are removed. 30% to 40% of the solids are removed through the primary and secondary treatment processes.

Water is removed from the sludge through different methods such as Open Sand Beds, Flocculent Chemical Dosing, Rotary Drum Vacuum Filter, Belt Filter Press, and Centrifugation Process.

Roto’s Dewatering Pumps are an ideal choice for handling wastewater applications such as


  • Primary sludge
  • Secondary sludge
  • Secondary activated sludge
  • Secondary excess sludge
  • Thickened sludge
  • Digested sludge
  • Floating sludge
  • Returned sludge
  • Stabilized sludge
  • Bio sludge
  • Settled sludge
  • Undigested sludge


  • Milk of lime
  • Concentrated flocculent
  • Polymer solution
  • Metallic salts
  • Polyelectrolyte
  • Polyaluminium chloride solution
  • Polyacrylamide flocculent
  • Alum flocculent
  • Dewatered sludge
  • Sludge cake

Roto Standard & Wide Throat Progressive Cavity Pumps are designed to handle highly viscous and solid laden liquids with ease. The next generation pumping elements such as Rotor, Stator, Solid Shaft and Double Sealed Cardan Universal Joints help the pumps to improve the performance and provide a longer service life.

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