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Rotary Disk Aerator with FRPP Disks for Efficient Oxygenation and Robust Flow Propulsion in Wastewater Treatment

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Rotary Disk Aerator with FRPP Disks for Efficient Oxygenation and Robust Flow Propulsion in Wastewater Treatment

Max Working Depth : ~5 metres

Model Number : ZD Series

Aerator Disks Material : FRPP (Fibreglass Reinforced Polypropylene)

Brand Name : Lanjiang

Drive Unit : Motor (single/dual/VFD) + spiral bevel-cylindrical gear reducer

Payment Terms : T/T

Delivery Time : 15

Shaft Material : Heavy-wall seamless steel pipe

Place of Origin : China

Flow Velocity : Exceeding 0.3 m/s

Supply Ability : 500

Shaft Coating : FRP thermoset or anti-corrosion coating

MOQ : 1

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Rotary Disk Aerator – Horizontal Shaft Disc Aerator with FRPP Disks
Horizontal-axis surface aerator designed for efficient oxygenation and propulsion in oxidation ditch wastewater treatment systems.
Quick Specifications
Product Type Rotary Disk Aerator (Horizontal-Axis Surface Aerator for Oxidation Ditches)
Core Function Efficient oxygenation, robust flow propulsion, and complete sludge suspension
Aerator Disks Injection-moulded high-strength FRPP with four integrated functional structures
Drive Unit Motor (single/dual/VFD) + spiral bevel-cylindrical gear reducer
Main Shaft Heavy-wall seamless steel pipe with FRP thermoset or anti-corrosion coating
Max Working Depth ~5 metres
Configuration Split-type two-half disk design with locking device for easy assembly and expansion
Key Advantages
  • Deep working depth capability
  • High power and oxygenation efficiency
  • Superior corrosion resistance
  • Extended operational lifespan
  • Custom solutions designed per oxidation ditch specifications
  • Easy on-site assembly and future capacity expansion
Product Description
The Lanjiang Rotary Disk Aerator is a horizontal-axis surface aeration system designed specifically for large-scale oxidation ditches in municipal and industrial wastewater treatment plants. As a key piece of equipment in the Orbal/Carrousel-type oxidation ditch process, it provides three critical functions simultaneously: efficient atmospheric oxygenation, robust wastewater propulsion along the ditch channel, and complete activated sludge suspension to prevent sedimentation.
The aerator consists of a drive unit (motor with single-speed, dual-speed, or VFD control and a spiral bevel-cylindrical gear reducer), a flexible coupling (pin-type or rubber contact for vibration absorption and angular misalignment compensation), a main shaft fabricated from heavy-wall seamless steel pipe with FRP thermoset moulding or heavy-duty anti-corrosion zinc/stainless steel spray treatment, multiple aerator disks, and bearing housings that support the total operational load while compensating for thermal expansion and contraction of the shaft.
The aerator disks are injection-moulded from high-strength FRPP (Fibreglass Reinforced Polypropylene). Each disk surface integrates four functional structures: Teeth that provide propulsion for wastewater flow; Water-splashing Lobes that maximise air-water contact and oxygen saturation; Oxygen-storage Grooves that entrain and shear air bubbles for deep emulsification; and Centrifugal Channels that eject oxygen-depleted water via centrifugal force for continuous re-oxidation. The disks feature a split-type two-half design with a locking device for easy on-site installation and future capacity expansion.
During operation, the motor drives the shaft and disks through the gear reducer. The rotating disks and their integrated blind-hole structures create water curtains that entrain large volumes of atmospheric air, providing thorough mixing and efficient oxygenation. Simultaneously, the rotation strongly propels the wastewater forward along the oxidation ditch channel at a velocity typically exceeding 0.3 m/s, keeping the activated sludge perfectly suspended and ensuring complete biochemical treatment.

Product Tags:

Rotary Disk Aerator with FRPP Disks

      

Sewage Aerator for Oxygenation

      

Wastewater Treatment Flow Propulsion

      
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