DeWater® RDT

Thickener Systems

 PEWE DeWater® RDT

The DeWater® RDT internally fed rotary drum sludge thickener units are used to thicken municipal sludge by extraction of free water. The unit is used to thicken both primary and secondary sludges commonly found in municipal wastewater treatment plants. The rotary drum sludge thickener can also be used on industrial sludge applications.

The DeWater® RDT series rotary drum thickener will maximize thickened sludge removal in an easy to maintain unit. The screen material is a barrier by which material larger than the gap or slot size may not pass, allowing the water to continue through while thickening the output sludge.

DeWater® RDT Design

The internal design utilizes a cylindrical perforated drum with filter cloth for separating coarse suspended solids from the water. The screen may be ordered with several options including custom polymer blend system and PEWE Command Control RX panel

DeWater® RDT Operation

The RDT influent stream is fed to the screen interior drum surface via an engineered headbox after the incoming sludge has been conditioned with a polymer in the supplied flocculation tank. Clarified effluent then flows through the screen openings and out of the drum through the drainage pan through the flanged outlet. Thickened sludge is then discharged from the interior through a solids discharge chute where it can be directed into a sludge collection tank.

Thickener Screens — High Flow, High Solids

  • BAKERY
  • BREWERY
  • FRUIT
  • FOOD PROCESS
  • MEAT
  • MINERAL
  • MUNICIPAL
  • PETROCHEM
  • POULTRY
  • PULP & PAPER
  • SEAFOOD
  • VEGETABLE
  • WINERY
  • WASTEWATER
Application Municipal English Flow
Capacity
Metric
Model Lengh
inches
mm Diameter
inches
mm GPM Dry
Lbs/hr
LPM Dry
Kg/hr
This chart to be used as a guide only. Consult your PEWE representative.
RDT-75.3 48 1219 36 914 75 275 284 125
RDT-100.3 72 1905 36 914 100 435 378 197
RDT-150.3 96 2438 36 914 150 635 568 288
RDT-200.4 72 1905 48 1219 200 705 757 320
RDT-250.4 96 2438 48 1219 250 935 946 424
RDT-300.4 120 3048 48 1219 300 1155 1135 524
RDT-350.5 96 2438 60 1524 350 1305 1325 592
RDT-450.5 120 3048 60 1524 450 1605 1703 728
RDT-550.4 144 3658 60 1524 550 1905 2081 864