Tube Settler Media
Tube Settler Media is an inclined PVC or PP media installed inside clarifiers and sedimentation tanks to increase the effective settling area. It improves suspended solids removal while reducing the required tank size in Water Treatment Plants (WTP), Effluent Treatment Plants (ETP), and Sewage Treatment Plants (STP). The inclined tubes create laminar flow conditions, allowing suspended particles to settle efficiently.
Technical Specification
Parameter | Specification |
Material of Construction (MOC) | Rigid PVC (Standard), PP (Optional) |
Shape | Hexagonal Chevron |
Tube Cross Section | 120 × 44 mm (Standard) |
Inclination Angle | 60° from Horizontal (Standard) |
Alternate Angle | 55° (Higher projected settling area) |
Media Thickness | 1.0–1.1 mm |
Standard Height | 750 mm / 1000 mm |
Hydraulic Radius | Approximately 15 mm |
Plan Settling Area | 11–13 m²/m³ |
Operating Temperature | Up to 55°C |
Colour | Black |
Joint System | Tongue & Groove |
Approximate Weight | 55–60 kg/m³ |
Typical Design Parameters
Parameter | Value |
Surface Overflow Rate (SOR) | 5–10 m³/m²·hr |
Tube Inclination | 55–60° |
Flow Pattern | Laminar |
Settling Area Increase | Approximately 10–13 m² per m³ of media |
Recommended TSS | 50–500 mg/L (depending on application and pretreatment) |
Standard Sizes
Tube Height | Application |
500 mm | Compact clarifiers |
750 mm | Standard WTP/ETP |
1000 mm | High-efficiency clarification |
Custom | As per tank dimensions |
Applications
- Water Treatment Plants (WTP)
- Effluent Treatment Plants (ETP)
- Sewage Treatment Plants (STP)
- Primary Clarifiers
- Secondary Clarifiers
- Lamella Clarifiers
- Oil & Grease Separators
- Industrial Sedimentation Tanks
Features
- High settling efficiency
- Increases clarifier capacity by 2–4 times
- Compact design reduces tank size
- No moving parts
- Low maintenance
- Corrosion resistant
- Easy installation
- Self-supporting hexagonal structure
- Resistant to most water treatment chemicals
- Long service life
Advantages
- Higher suspended solids removal
- Better clarified water quality
- Lower civil construction cost
- Suitable for retrofitting existing clarifiers
- Reduced detention time
- Lower sludge carry-over
- Easy replacement and maintenance
Performance
- Suspended solids removal: 80–95% (with proper coagulation/flocculation)
- Clarifier capacity increase: 2–4 times
- Reduced sludge carry-over
- Improved overflow water clarity
Installation
- Install at 60° inclination.
- Media modules are supported on SS304/FRP/MS support beams.
- Maintain 150–300 mm clearance above sludge hopper.
- Ensure uniform influent distribution beneath the media.
- Provide adequate freeboard above the media for clarified water collection.