Tube settler modules increase the settling capacity of circular clarifiers and/or rectangular sedimentation basins by reducing the vertical distance floc particles must travel before agglomerating to form larger particles.
The Monroe Tube Settler Clarifier is ideally suited for municipal potable water or wastewater treatment plants, as well as industrial applications. The modules consist of multiple tubular channels normally sloped at an angle of 60° from horizontal. Monroe Tube Settler modules are generally between 2 ft and 4 ft in vertical height. The tubes are somewhat triangular in shape with each tube having up to a cross sectional area of 5 square inches. Water entering the settling zone flows into the bottom of the tubes and out at the top, while particulate matter settles out by gravity to the bottom of the clarifier. This design allows particles to settle more rapidly by achieving laminar flow and decreasing the distance a particle needs to travel before it begins to agglomerate. This rapid settling effect maximizes the effective surface area for settling, thereby minimizing clarifier footprint. An increase in water treatment plant flow rate is also enabled by tube settlers.
The Monroe Environmental tube settler support structure is designed to minimize interference of structural elements with the tube settler modules. The “T” shaped support structure keeps structural members out of the module area. The tube settlers themselves are made of a lightweight potable grade PVC, though other materials are available. In terms of structural support system components, Monroe offers the widest range of materials and coating systems in the industry, including mild steel, stainless steel, FRP, and thermoplastics with the best material selected depending on each specific application. Monroe’s 304L stainless steel design is most common and ideally suited for use at municipal potable water treatment plants. Tube settler modules can also be integrated into existing circular or rectangular clarifier designs to give increased efficiency.
As with the Clean Water Plate Settler, flow first passes through a flocculation zone before entering the settling area where the tube modules are located. Several flocculation mechanisms are available, as well as adjustable overflow weirs and efficient, low maintenance sludge removal systems.
- Complete in-house fabrication and engineering
- Customer support services including wastewater evaluation, installation, start-up assistance, training, and field service
- The widest range of materials and coating systems in the industry including mild steel, stainless steel, FRP, and thermoplastics.
 Water & Wastewater Treatment
Plate & Tube Settlers Brochure, download pdf (2.3Mb)
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