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Your Complete Source for Dewatering Equipment

Rotary Drum Thickener

Economical and Effective

The Enclosed Sieve Drum Concentrator offers compact and easy installation for small to medium sized plants.  A zero trunnion design brings long life and easy maintenance with low energy, polymer and wash water consumption.

Product Data

Description

Description

Our ROEFILT Sieve Drum Concentrator (SDC) reduces the volume of thin sludge and slurry produced during municipal or industrial wastewater treatment. The principle of the SDC is very simple: Sludge is flocculated with polymers and the released water is drained by gravity through a filter drum while rotating. The sieve Drum concentrator is an efficient alternative to the Gravity Belt Thickener if your circumstances involve limited space or less demanding performance requirements.

Efficient and effective performance

The ROEDRUM is a Sieve Drum Concentrator (SDC) for extremely efficient volume reduction. Sludge thickened by the ROEDRUM can practically double digestive volume. The uncanny ability of Charter Machine’s Sieve Drum Concentrator to thicken sludge will profoundly reduce hauling and disposal costs. The ROEDRUM’s unique design has given it several advantages over it’s counterpart, the ROEBELT. The small size, compared to the ROEBELT helps designers and engineers save expensive real estate. Due to the total containment of sludge and filtrate, a no-spill operation can be guaranteed and H2S control is easily achieved. Continuous back-washing of the drum filter cloth and gentle tumbling of the sludge provides the highest capture rates possible (99%+). The ROEDRUM is operated with a fraction of a horsepower, and it’s polyester filter cloth has nearly an unlimited lifetime. Because Charter Machine has been fabricating these gravity dewatering devices since 1970, we can proudly state that we have written the book on Sieve Drum Concentrators. The ROEDRUM is available in five different models: SDC45, SDC 90, SDC 125, SDC 180 and SDC 300

General Specifications

General Specifications

Type of SludgeFeed %Cake %Polymer Consumption LBS/DRY TONSDC 45 ThroughputSDC 90 ThroughputSDC 180 Throughput
GPMLBS/DS/HGPMLBS/DS/HGPMLBS/DS/H
Aerobically Digested 0.5-2.5 5-6 10-14 60-40 150 - 500 100 - 70 250 - 875 190 - 140 475 - 1750
Anaerobically Digested 2.0-5.0 5-7 6-10 50-35 500 - 875 80 - 60 800 - 1500 140 - 100 1400 - 2500
50%Primary 50% Secondary 1.5-5.0 7-9 6-10 50-40 375 - 1000 80 - 70 600 - 1750 140 - 110 1050 - 2750
Primary 2.5-7.5 8-12 2-8 60-50 750 - 1850 100 - 80 1250 - 3000 180 - 140 2250 - 5250
WAS 0.5-1.5 4-6 8-12 70-60 175 - 450 120 - 90 300 - 675 200 - 170 500 - 1275
Alum Sludge 1.5-2.0 4.5-6.5 8-16 80-60 600 - 600 110 - 85 825 - 850 140 - 110 1050 - 1100
Models

Models

MODELTHROUGHPUT (GPM max may vary)LENGTHWIDTHHEIGHTSDC DRIVE TOTAL HP
SDC45 60 11'-4" 4'-6" 6'-7" 3
SDC90 120 16'-4" 4'-6" 7'-0" 3.5
SDC125 160 16'-4" 5'-7" 7'-10" 3.5
SDC180 240 18'-2" 6'-10" 7'-10" 4
SDC300 360 13'-6" 6'-2" 8'-10" 4
Features

Features

Advanced Drum Design

  • Eliminates high maintenance drum support bearings.
  • Direct driven eliminating easily wearing chain and sprocket design.
  • Provides the gentlest tumbling of sludge.
  • Multi-zoned drum design includes initial and main dewatering area. Each zone can be wrapped with different mesh sizes for maximum thickening. Available with polyester filter screens or stainless steel.

Drum Housing

  • Drum housing eliminates odor emission. 

Tapered Spiral Flights

  • Tapered spiral flights are specially designed to maximize performance and throughput capacity of dewatering drum.

SS Drum Spray Shower

  • SS Drum Spray Shower with internal brush system and handwheel for self-cleaning. Provides optimal cleaning of the drum screen without rewetting the sludge.

Sliding Access Doors

  • Sliding access doors for easy viewing during operation.

SS Floc Tank

  • Provides maximum detention time with hinged access covers.
  • Ensures proper conditioning of sludge and polymer without shearing.
  • Axial flow impeller blades provide maximum blending.

Venturi Mixer

  • Venturi Mixer is designed to thoroughly condition the sludge with polymer to result in the highest degree of flocculation.
  • Charter Exclusive Polymer Injection Ring injects polymer into sludge stream more effectively & efficiently from competition.

Tangential Sludge Inlet

  • Tangential Tank Design Inlet to provide minimal turbulence of floc entering the tank.
Benefits

Benefits

Cost Effective

  • Minimal installation expense
  • All our SDC units are direct drive, eliminating costly belt or chain drive.
  • Economical alternative to a Gravity Belt Thickener.
  • Low energy and polymer consumption
  • Low or no wash water consumption

Small Footprint

  • Requires less space than a GBT.

Distraction-free

  • No noise, no vibration
  • Drum housing eliminates odor emission.

Maximum Performance

  • Reduction of sludge volume by up to 90%
  • Reduced load on downstream processes
  • Improved performance and/or reduced size of downstream units

Simplified Operation

  • Minimal to no operator attention required.
  • Sliding access doors for easy viewing during operation.
  • SS Drum Spray Shower with internal brush system and handwheel for self-cleaning.

Design Flexibility

  • Adaptable to any dewatering system or machinery
  • Available in all sizes and models

Plug and Play

  • Total System Responsibility
  • CMC offers skid mounted systems that can be customized to meet any facility's needs. Our sump/skid systems can include the SDC only or be a complete "plug and play" system combining any combination of sludge feed pump, compressor, booster pump, in-line mixer, polymer system, conveyors, and control panel. See our Skid-Mounted Systems page to discover the perfect combination of size and flexibility.

Applications

MUNICIPAL

  WASTEWATER / DRINKING WATER
Municipal Water pano
 
  • Municipal Sludge
  • Primary
  • Waste Activated Sludge (WAS)
  • Aerobically Digested
  • Anaerobically Digested
  • Alum
  • Raw Sewage
  • Return Sludge
  • Secondary Treatment Wastewater
  • Lime Softening Sludge
  • River Water Silt

INDUSTRIAL

 
Municipal Water pano
 
  • Pulp & Paper Wastes
  • Chemical Sludges
  • Coal Refuse
  • Mining Concentrates
  • Printed Circuit Board Sludges
  • Asphalt and cement production
  • Tannery Sludges
  • Industrial Oil Sludge
  • Drum, Truck and Tanker Wastes
  • Dyes Inks and Pigments
  • Fluoride Sludges
  • Glue Wastes
  • Paint Sludges
  • Wood Treating Oils

AGRICULTURE

 
Agriculture
 
  • Livestock Sludge
  • Milk Sludge
  • Farms, manure, animal waste
  • Grain
  • Dairy, milk processors
  • Fertilizer
  • Organic Sludges

FOOD & BEVERAGE

 
Food_and_Beverage
 
  • Food, fruit, Vegetable processors
  • Potato Processing
  • Soybean Sludge
  • Peanut Butter
  • Corn Syrup
  • Lard
  • Breweries, beverage producers
  • Dextrose
  • Chocolates
  • Jellies & Condiments
  • Extracts
  • Cheese Production

OTHER

 
 
 
  • Organic Mineral
  • Automotive Applications
  • Pharmaceutical Sludge
  • Soaps / Detergent
  • Cosmetics
  • Ceramics

Image Gallery

SDC090 - Mocksville, NC
SDC090 - Mocksville, NC
SDC090 - Mocksville, NC
SDC090 - Mocksville, NC
SDC090 - Mocksville, NC
SDC090 - Mocksville, NC
SDC045 - Penn State, PA
SDC045 - Penn State, PA
SDC045 - Penn State, PA
SDC045 - Penn State, PA
SDC045 - Penn State, PA
SDC045 - Penn State, PA
SDC125 - Franklin Township, PA
SDC125 - Franklin Township, PA
SDC125 - Franklin Township, PA
SDC125 - Franklin Township, PA
SDC125 - Franklin Township, PA
SDC125 - Franklin Township, PA
SDC180
SDC180
SDC90 - Pluckemin, NJ
SDC90 - Pluckemin, NJ
SDC90 - Pluckemin, NJ
SDC90 - Pluckemin, NJ

Why Choose Us?

As a leading U.S. manufacturer of wastewater and bio-solids management equipment, CMC offers unmatched capabilities to meet the diverse needs of this critical industry. Our extensive experience and expertise allow us to work closely with operators and engineers, ensuring our equipment delivers optimal functionality and reliability. Our comprehensive approach, from design and engineering to installation and after-sales support, establishes CMC as your trusted full-service supplier.